Dome® CXtra™ User’s Guide
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Contents What’s New in Version 6.
Test Patterns Service 54 AAPM TG18 Test Patterns 54 Miscellaneous Test Patterns 54 Displaying Test Patterns 57 Adding a Custom Test Pattern 58 Modifying or Deleting Custom Test Patterns 60 Dome Visual and Interactive Evaluations 60 Backlight Saver Service 66 Creating a Saver Period 66 Deleting a Saver Period 68 Viewing Schedule for Week 68 DIN Test Service 69 Setting Up for Testing 70 Running a DIN Acceptance Test 80 Running a DIN Constancy Test 81 Viewing DIN Test Results 83 AAPM TG18 Test Service 84 AAPM
What’s New in Version 6.x Series Dome Display Support has been added for the new Dome E2cHB display, a 2-megapixel, color, high-bright unit. Windows Platform Support Support is available for the Microsoft Windows 7 (x86 or x64) and Windows Server 2008 R2 (x64 only) operating systems. Support for the Microsoft Windows XP x64 operating system was added to the Dome® CXtra™ 6.x series in an earlier version.
White Level Calibration Correction of the display white level can now be done via manual conformance testing or with the White Level Calibration service. A one-time, end-user calibration of the white level may be necessary when the target luminance is outside the tolerance established for proper display conformance, such as when the white level of a display has failed a manual conformance test, or when two or more displays in a multi-unit configuration show disparate white levels.
Getting Started The Dome CXtra software adds essential functionality to Dome medical imaging display systems in diagnostic and referral settings. By using the Dome CXtra suite of value-added services, you can calibrate and maintain displays, run acceptance tests, and monitor displays remotely. While the services operate as independent plugins, they each use the Reporting service for listing properties, logging events, and saving history.
Dome CXtra Services The following services constitute the Dome CXtra software. RightLight™ – Assures backlight stabilization for your display panel, calibrates your panel to the DICOM Grayscale Standard Display Function, automatically tests the calibration for conformance, allows manual conformance testing, and supports DICOM calibration at various color coordinates on Dome EX color displays. (Manual conformance testing requires the LCD or the LCD II photometer.
The use of Dome CXtra services is display-dependent.
System Requirements The Dome CXtra software requires one of these operating systems: • Windows 7 (x86 or x64) • Windows Server 2008 R2 (x64 only) • Windows XP Professional (x86 or x64), Service Pack 3 Installing the Dome CXtra Software NOTE: Install the Dome CXtra software to a local disk drive only. The software may not work properly if any components are installed on a network drive. To install the Dome CXtra software 1 Log onto Windows with administrator privileges.
UPGRADE INSTALLATION: To upgrade to package 6.0.1 or later, insert the installation CD and run setup.exe. Follow the wizard instructions to complete the installation. Services that have been modified since the previous release are upgraded. The application starts when the installation is finished. The Dome CXtra icon appears on the Windows taskbar. The check mark indicates that the application is running successfully.
Installing the Photometer To use the RightLight and DICal custom calibration and conformance test features, you must purchase and install the optional LCD or LCD II photometer. (Only the LCD II photometer is RoHS complaint.) NOTE: The LCD II photometer is required for use with Dome EX color displays. Use the following instructions to install the photometer correctly per your operating system. To install the photometer on Windows 7/Windows Server 2008 R2 1 Log onto Windows with administrator privileges.
To install the photometer on Windows XP 1 Log onto Windows with administrator privileges. 2 If necessary, install the Dome CXtra software. (See page 6.) 3 Connect the photometer to a USB port on the computer. The operating system detects the new hardware and opens the Found New Hardware Wizard. NOTE: If you connect the photometer to a USB hub and the Found New Hardware Wizard does not appear, connect the photometer directly to a USB port on the computer.
Starting Dome CXtra The Dome CXtra application starts automatically when you run your computer. If you exit the application or if it stops running for any reason, restart it by selecting Windows Start > All Programs > NDSsi > CXtra. A Dome CXtra status icon appears on the Windows taskbar to indicate application status. The Success icon shows that the display is operating normally. The Wait icon appears the application is starting up or restarting from a stop.
Opening the Dome CXtra Services Menu All Dome CXtra functions are accessible from the services menu. This graphic shows the default menu entries for standard services. To open the menu, click the Dome CXtra icon on the Windows taskbar. If the Dome CXtra icon is not visible on the Windows taskbar, open the menu by Windows Start > All Programs > NDSsi > CXtra. The menu is expanded to show the White Level Calibration service when the user is logged on as administrator.
CXtra Utilities The following utilities have been added to the application. CXtra Start Launch the application and all CXtra services CXtra Diag Create Cxtradiag package CXtra Restart Resume application operation and all CXtra services CXtra Stop Terminate the application and all CXtra services To access a utility, click Windows Start > All Programs > NDSsi > CXtra Utilities, then select one of the four options. NOTE: Windows administrator privilege is required to run the utilities.
RightLight Service The RightLight service performs backlight stabilization, DICOM calibration, and automatic and manual conformance testing for Dome CX and Dome EX displays. With RightLight, you can set a target white level, equalize the black level across the displays, set a desired response function, and specify ambient light in the viewing area. This service also reports current white and black levels. RightLight automatically calibrates the displays at regular intervals.
For Dome E2c, Dome E3c, Dome E3cHB, and Dome E4c displays, you can set color coordinates for panel appearance in one of two ways: • Select an option for panel appearance with blue, clear, or default. • Use the LCD II photometer to perform color calibration when you specify color coordinates by color temperature (Kelvin scale) or by CIE xy coordinates. Configuring the RightLight Service If the Privilege service has been installed, you must log on as a privileged user to change the RightLight configuration.
In the White Level field, type the target white level value (in cd/m2) or use the arrow keys to change the value shown. Click Apply or OK. NOTE: White Level values are limited to the upper and lower ranges specified per display. RightLight stabilizes the backlights of the selected displays to attain the target white level. The system may require a few moments for the white level to stabilize after adjustment. This table shows the default target white levels for each type of Dome CX and Dome EX display.
Dome CXtra gives you three options for controlling dynamic range of displays. • Maximize - Causes each selected display to be calibrated using its full dynamic range. The dynamic range of the selected displays may differ. • Equalize - Causes all selected displays to be calibrated using the same dynamic range. The system locates the selected display that has the smallest dynamic range and adjusts the dynamic range of the other selected displays to match it.
Calibration tab Select one of these response functions for auto-calibration: • DICOM Response Function (default) – Calibrates to the DICOM Grayscale Standard Display Function. See DICOM PS 3.14-2000 (Digital Imaging and Communications in Medicine (DICOM), Part 14: Grayscale Standard Display Function). • Exponential (log linear) Response Function – Calibrates to an exponential (log linear) response function. The logarithm of the luminance is a linear function of the digital driving level.
Ambient tab Specify the ambient light in the viewing area. Select the ambient light description that best fits the display location: • Low (reading room - 0.20 cd/m2) • Moderate (typical office - 0.80 cd/m2) • High (brightly lit office - 1.50 cd/m2) • Custom – Fill in a value ranging from 0.00 (default) to 5.00 cd/m2. The RightLight service allows you to enter luminance in cd/m2 resulting from the diffuse reflection of ambient illuminance. Since typical Dome panels have a reflectance of 1.
Color tab Specify the panel appearance of Dome E2c, Dome E2cHB, Dome E3c, Dome E3cHB, and Dome E4c displays, with or without calibration. Appearance. Use options in the Appearance field to specify blue, clear, or default when you do not color-calibrate the display panel. Calibrated color coordinates. Use options in the Calibrated Color Coordinates field for precise specification of color coordinates.
Auto Alerts tab Specify the conformance test(s) you want RightLight to run. Every 5 minutes, RightLight automatically performs the tests selected on this tab. For each test you select, you can specify a threshold value that defines a test failure. RightLight alerts you of a failure in these three ways: by message, by entries in the History log, and by status change of the Dome CXtra icon in the system tray.
To set auto alert parameters 1 Select either the DICOM LUM test or the CX/EX White Level test or select both. For the DICOM LUM test, check the selection box. Then enter a value for Maximum allowed. The DICOM LUM test is classified a failure if it produces a value greater than the maximum allowed. Enter a value ranging from 0 (zero) to 2 (default=1.00). A value of 0 (zero) indicates perfect conformance with the DICOM Grayscale Standard Display Function.
2 In the Log interval section, enter a time interval and starting time for the first daily test in the hours starting at field. RightLight logs the first set of conformance tests at the time specified and at regular intervals thereafter until the end of the day. Enter a positive integer for hours and a time in the 24-hour format, such as 13:30. This interval specifies how often the system logs the results of the selected test(s).
To set manual alert parameters 1 Select either the DICOM LUM test or the White Level test or both. • For the DICOM LUM test, check the selection box. Then enter a value for Maximum allowed. The DICOM LUM test is classified a failure if it produces a value greater than the maximum allowed. Enter a value ranging from 0 (zero) to 2 (default=1.00). A value of 0 (zero) indicates perfect conformance with the DICOM Grayscale Standard Display Function. • For the CX/EX White Level test, check the selection box.
Before starting a manual conformance test, select Dome CX/EX DICOM Calibration on the services menu. NOTE: If you run a conformance test with another response function (such as Dome CX/EX Exponential Calibration or Dome CX/EX Native Calibration), the system presents a warning message. Continuing to run the test causes the system to show the Dome CXtra icon in the warning state. To run a manual conformance test 1 Open the Dome CXtra Services menu. Select RightLight Conformance > Manual Conformance Wizard.
After you finish with the Conformance Wizard, RightLight enters the event in both the Reporting History log and the Conformance History log. All RightLight history events from manual conformance tests are recorded in the Reporting History log. RightLight provides additional information on conformance events in graphical and tabular formats in the Conformance History log.
Checking Current Conformance Status To view the results of the latest manual conformance test, open the Dome CXtra Services menu. Select RightLight Conformance > Current Conformance Status. In the same dialog, you can also view the results of the latest automatic conformance test.
Reviewing Conformance Events Dome CXtra polls RightLight automatically for its status every 5 minutes, which causes the user-selected tests to run. The system makes an entry in the Reporting History log by the specified logging interval on the Auto Alerts tab and whenever it detects a status change. NOTE: When you make changes in the Auto Alerts tab, conformance tests run immediately. When you perform a manual conformance test, the system also makes an entry in the Reporting History log.
Reviewing Manual Conformance Data For manual conformance tests, you can specify results you want to review by display and date and then examine the data in graphical and tabular formats. NOTE: Auto conformance data cannot be viewed this way. To see a detailed account of a manual conformance event Open the Dome CXtra Services menu and select RightLight Conformance > Manual Conformance History. Then select the Graphs or Tables tab.
Graph type • Response graph. Plots the measured luminance at various driving levels (P-values). Luminance is shown along the Y axis using a scale that you select from three options: Linear / Lum, Linear / Log Lum, and Linear / JND Lum. The graph consists of the luminance values specified by the DICOM standard and the luminance values measured during the conformance test. The better the data points align with the curve, the better the DICOM conformance.
• Conformance graph. Plots Just Noticeable Differences (JNDs) per luminance interval. The graph shows the mean value for JND/ luminance interval, the DICOM Luminance Uniformity Metric (LUM), and the line of best fit (FIT). These values are useful in quantifying the quality of conformance with the DICOM Grayscale Standard Display Function. The closer the JND values are to the mean line, the better the DICOM conformance.
Tables tab To view or print a conformance test, choose a table type, display, and selected test date and time to view or print the tabular data. When using multiple displays, choose the individual display for which you want test results from the Display pull-down list. Select a particular conformance test by date and time from the Date pull-down list. Table type • Response table. Lists the luminance value measured for each luminance interval in a selected conformance test. • Conformance table.
• Color table. Lists the following data values by Kelvin scale or CIE xy coordinates.
Disabling RightLight Popup Warnings You can disable all warning message popups related to the RightLight service. NOTE: Disabling of warning message popups is not recommended. Read the notice on page 34 before disabling any popups. To disable RightLight popup warnings 1 Open the Dome CXtra Services menu and select Reporting Control. 2 Check the box in the Disable RightLight Popups field. 3 Click OK.
Important notice on disabling RightLight popup messages WARNING: The Dome CXtra software includes "popup" warning dialogs (popups), which, unless disabled, appear on the operator's display screen under various operational conditions. These warnings include important messages about the performance of the display which may impact the integrity and reliability of the information displayed, such that the accuracy of the radiologist's or other medical user's diagnosis may be compromised.
White Level Calibration Service The white level of a Dome display is stabilized by the internal RightLight photometer that is calibrated during display manufacture. The White Level Calibration service allows the end user to calibrate the sensor using an external photometer. When the calibration is completed, the new calibration data file is stored in the display.
When you log on as administrator, the CXtra Service menu expands to include two functions, White Level Calibration Wizard and Restore Factory White Level Calibration. (See “Logging On as Privileged User/ Administrator” on page 96.
Running the White Level Calibration Wizard IMPORTANT: White level calibration via the White Level Calibration service is available for use on all Dome CX and Dome EX displays. Restoration of the factory white level calibration is available only for Dome E2, Dome E3, Dome E3c, Dome E3cHB, and Dome E5 displays. To calibrate the white level First, open the CXtra Services menu and click White Level Calibration Wizard.
Restoring Factory White Level Calibration IMPORTANT: Restoration of the factory white level calibration is available only if you have previously calibrated the white level using the White Level Calibration service or via RightLight manual conformance testing. Factory calibration can be restored only for Dome E2, Dome E2cHB, Dome E3, Dome E3c, Dome E3cHB, and Dome E5 displays. To restore factory calibration Open the CXtra Services menu and select Restore Factory White Level Calibration.
DICal Service You can use the DICal service to adjusts the characteristic curve of the Dome Q2, GX2MP, and select desktop displays (such as models PX1910M and PX212M) to conform to the DICOM Grayscale Standard Display Function. The configuration of the service provides an option for default DICOM calibration (for viewing diagnostic images), which is adequate for many applications.
Configuring the DICal Service The desktop display ships with brightness and contrast values already set as shown in the table below for DICOM compliance. Start at procedure step 2 to configure the DICal service upon initial use. Use the entire procedure to configure the service after display settings have been changed. To configure the DICal service 1 Set the brightness and contrast of your display to the values in this table. (Refer to the display manual for how to set the values.
Using DICOM Response Function as Default Calibration Open the DICal Panel Configuration dialog to the Configuration tab. To activate DICOM grayscale calibration at each system startup, click the check box for DICOM response function. The default DICOM calibration is applied to your display settings whenever you select Desktop DICOM Calibration from the services menu. No other steps are needed to apply the DICOM calibration after installation.
Choosing Display Calibration Besides DICOM calibration, you can choose to use exponential, gamma, or original display calibration. Open the CXtra Services menu, then select DICal Panel Configuration and Calibration tab. Choose one of these response functions for auto-calibration: • DICOM Response Function – Calibrates to the DICOM Grayscale Standard Display Function. See DICOM PS 3.14-2000 (Digital Imaging and Communications in Medicine (DICOM), Part 14: Grayscale Standard Display Function).
NOTE: Upon software installation, only Desktop DICOM Calibration and Desktop Original Calibration are default entries on the services menu. On the Calibration tab, select or deselect check boxes in the Menu field to customize calibration entries on the services menu. To switch to another calibration Open the Dome CXtra Services menu. Choose from the display calibrations you have added to the services menu. Otherwise, go to the Calibration tab of the DICal Panel Configuration dialog to make a choice.
Performing a Custom DICOM Calibration A custom DICOM calibration uses the actual luminance values of your display to adjust the response curve. After you complete the calibration, the new values are applied in place of the default DICOM calibration whenever DICOM Calibration is selected on the services menu. NOTE: This procedure requires installation of the optional LCD or LCD II photometer as described on page 8.
Reviewing Calibration Events The Dome CXtra software records an event in the History event log each time you perform a calibration. To review a calibration event 1 Open the Dome CXtra Services menu and select Reporting. 2 Click the History tab to see a list of events. 3 Click a DICal service calibration event, then click View Detail to see detailed information about the event. NOTE: Only calibration and test status events have detailed information available.
Performing a Conformance Test You can use DICal service to verify that your display conforms to the DICOM standard. NOTE: This procedure requires installation of the optional LCD or LCD II photometer. (See page 8.) To perform a conformance test 1 If the Privilege service has been installed, log on as a privileged user. (See page 96.) 2 Open the Dome CXtra Services menu and select DICal Conformance > Conformance Wizard.
Using the Graphs Tab Use the controls on the Graphs tab to select a conformance test and change how the system shows the data for a selected test. When using multiple display panels, select a particular panel in the Display drop-down list. Select a particular conformance test by selecting the data and time of the test in this drop-down list. Use Print Graph to output the graph currently on the screen. Graph Type • Response. Presents the luminance values at various luminance intervals (P-values).
• Conformance. Presents values of Just Noticeable Differences (JND) per luminance interval and the mean value for JND/luminance interval. These values include the Luminance Uniformity Metric (LUM - DICOM metric) value and the FIT line expression used to quantify the degree of conformance. In general, the closer the JND values are to the mean line, the better the DICOM conformance. In addition, the closer the calculated LUM metric is to 0 (zero), the better the DICOM conformance.
Using the Tables Tab The Tables tab shows response and conformance numerical data for a given conformance test. When using multiple display panels, select a particular panel in the Display drop-down list. Select a particular conformance test by selecting the data and time for the test in this drop-down list. Use Print Table to output the data currently on the screen. Table Type • Response. Presents the luminance value measured for each luminance interval in a selected conformance test. • Conformance.
Reviewing Conformance Test Events The Dome CXtra system records an event in the History event log each time you complete a conformance test. To review a conformance test event 1 Open the Dome CXtra Services menu and select Reporting. 2 Click the History tab to see a list of events.
3 Click a conformance test status event, then click View Detail to see a summary of information about that test. NOTE: Only test events and calibration events have detailed information available.
Advanced Options When you connect a third-party monitor or unsupported display to your system, you see that the Dome CXtra software labels it “unknown” and “not” characterized in the DICal Panel Configuration dialog. The DICal service needs to characterize or recognize a display before it performs calibration. When the third-party monitor or unsupported display lacks a characterization data file, run the characterization wizard, then save the panel type with a unique name.
Select the data file to export, then store it in the Dome CXtra dat folder on the other system. Enabling DICOM Calibration on Third-Party Monitors After characterization, operate the third-party monitor with Desktop DICOM Calibration enabled. You can undo the Panel Type selection for third-party monitors using Edit Type. Choose and click OK.
Test Patterns Service You can view a variety of test patterns for assessing image quality using the Test Patterns service. Two categories of test patterns are installed with the service: • AAPM (American Association of Physicists in Medicine) TG18 • Miscellaneous patterns such as SMPTE, horizontal and vertical ramps, and geometric distortions You can also import custom test patterns in .DCM, .DC3, .JPG, or .TIF formats, as well as perform visual and interactive evaluations.
AAPM TG18 Test Patterns Set Series Type Images Description Multi Purpose (1K and 2K) TG18-QC Vis./Qnt 1 Resolution, luminance, distortion, artifacts TG18-BR Visual 1 Briggs pattern, low contrast detail vs. luminance TG18-CT Visual 1 Luminance response TG18-LN Quant. 18 DICOM grayscale calibration series TG18-UN Visual 2 Luminance and color uniformity and angular response TG18-UNL Quant.
56 | Dome CXtra Set Type Images Description Resolution, cont. TG18-LPH Visual 3 Horizontal bars at 1 pixel width, 1/16 modulation, 3 luminance levels TG18-LPV Visual 3 Vertical bars at 1 pixel width, 1/16 modulation, 3 luminance levels TG18-AFC Visual 1 4 AFC contrast-detail pattern, 4 CD values TG18-NS Quant. 3 Similar to RV/RH, 5 uniform regions for noise evaluation TG18-GV Visual 2 Dark spot pattern with low contrast object TG18-GQ Quant.
Displaying Test Patterns To select and display a test pattern 1 Open the Dome CXtra Services menu and select Test Patterns > View Test Patterns. The Display Test Patterns dialog opens. 2 Click the plus sign (+) beside a test pattern set to see variations of the test pattern. NOTE: • Some AAPM TG18 patterns have variations such as 10%, 50%, and 80%. • On display systems configured for 10-bit imaging, you can view the horizontal and vertical ramps to see the differences in 8- and 10-bits per pixel.
3 Click a pattern or variation name to show that pattern. To invert the pattern (change black to white and white to black), click the Invert. (Some test patterns cannot be inverted.) 4 If necessary, click Hide Dialog to provide a clear view of the pattern. To restore the dialog, press the space bar. 5 To exit the test pattern and the dialog, click Close.
3 Click Add to open the Add Custom Test Pattern dialog. 4 Using the Look In drop-down list, navigate to the folder containing the pattern you want to add. 5 Select a .dcm, .dc3, .jpg, .tif, or .tiff pattern file. 6 If appropriate, select a view option: – Zoom to fit (Select a sizing method of Bilinear or Nearest – Neighbor if you choose this option.) – Ramp grayscale 7 Click Open. The selected pattern appears in the Add, Modify, and Delete a Custom Test Pattern dialog.
Modifying or Deleting Custom Test Patterns To modify or delete a custom pattern 1 If the Privilege service has been installed, log on as a privileged user. (See page 96.) 2 Open the Dome CXtra Services menu and select Test Patterns > Manage Custom Test Patterns. The Add, Modify, or Delete a Custom Test Pattern dialog opens. 3 Select the test pattern to be modified or deleted. 4 Click one of the following buttons as needed: – Delete. Removes the custom test pattern. – View Options.
When invoked, the Test Patterns Evaluation dialog allows you to run the Dome Visual Test or the Dome Interactive Test or both. Use Setup to configure test parameters.
Run Dome Visual Test Use this test to display a visual pattern that you have selected (on the Setup dialog) and make a response to the resolution, uniformity, and visibility of details present in the pattern. The pass/fail status of the test is determined by your responses to the test questions. Run Dome Interactive Test With the interactive test, you can decipher textual strings that are shown on a background with very little contrast difference, 5 percent.
When a scheduled test pops up, the Preparing to Show Test Pattern dialog prompts you to select one of three options: taking the test, canceling the test, or postponing the test for a later time. If you decide to take the test later, the dialog pops up again after a time specified on the General tab of the Setup dialog. NOTE: Scheduled test do not pop up if any of the Test Patterns dialogs are open. Forced.
Patterns. Open this tab to configure the pattern type and location for the Dome Interactive Test and the pattern type for the Dome Visual Test. NOTE: Random is the default selection for all parameters of each test. Four types of patterns are supported by the Dome Interactive Test.
When Random pattern location is used by default or choice, you see the pattern in a random location each time the test is invoked. These six patterns are supported by the Dome Visual Test: • SMPTE • TG18-GV • TG18-QC • DIN-1 • TG18-CT • DIN-2 When Random pattern type is used by default or choice, you see a randomly selected pattern each time the test is invoked. Open this tab to configure these three parameters: • Prompt for Tester name: Enter your name after test completion.
Backlight Saver Service The Backlight Saver service allows you to specify when the display system turns off the panel backlights to extend the display’s clinical life. This service allows you to specify an inactivity value in minutes, and the panel backlights turn off whenever a period of inactivity exceeds this value. The service lets you define one or more “saver periods” during each day of the week. You can specify a different inactivity or “sleep after” value for each saver period you define.
2 Select the day or days for which you want to create one or more saver periods. Click a single day name in the Selected Day column or hold down the Control key while clicking multiple days. For example, you might specify the same saver periods for weekdays (Monday through Friday) and different saver periods for weekends. 3 Click Add Period. 4 Define a saver period by entering values for Start Time and End Time. Entries must be in a 24-hour format. NOTE.
Deleting a Saver Period To delete an existing saver period 1 Open the Dome CXtra Services menu and select Backlight Saver. 2 Click the associated data line and then click Delete Period. Viewing Schedule for Week To view the saver periods for a week 1 Open the Dome CXtra Services menu and select Backlight Saver. 2 Click View Week to see the schedule. 3 Click OK.
DIN Test Service The DIN Test service tests your Dome CX, Dome EX, and Dome QX displays for conformance with German standard DIN 6868-57. A successful acceptance test such as the one performed by DIN Test service is mandatory before DIN 6868-57 application category A and B devices* can be accepted in a hospital or other diagnostic setting. For more information about DIN acceptance criteria, obtain a copy of the DIN 6868-57 standard through the following web site: http://www2.din.de.
Acceptance or constancy testing requires a photometer for measuring the luminance of the display. The DIN Test service automatically reads luminance measurements when you use one of these photometers: • Wellhofer LXplus • Minolta LS-100 NOTE: The NDSsi photometer is also read automatically, but it is a contact device and is less suited for use in DIN testing.
To set up the display for testing 1 Open the Dome CXtra Services menu and select DIN Test. The DIN Test service dialog appears. 2 Click Setup. The DIN Test Setup dialog appears, open to the Location tab.
To set up entries on the Location tab Enter descriptive text and click Apply.
To set up entries on the Display tab 1 Complete the Display and Performance Class fields. 2 Select Yes or No for the three installation questions, select the display matrix require, and click Apply. NOTE: The descriptive information in the middle of the display is read-only and cannot be changed.
To set up entries on the Photometers tab 1 Select a photometer from the pull-down list. Select Other if your photometer is omitted from the list. NOTE: All photometers must adhere to section 7.1 of the DIN specification. When you select Other, you must manually enter the measured values in the test wizard dialogs. 2 If you selected Other in step 1, type the name of the photometer manufacturer in the Manufacturer field. 3 Enter the photometer serial number in the Serial Number field.
To set up entries on the Medical Image tab To use an image other than the default image (achest.dcm), click Browse and select an image. Click Apply. NOTE: A landscape image, chestah.dcm, is available in the installation folder’s dat folder.
To view information on the Reference Values tab Open the Reference Values tab to view information about the most recent successful DIN acceptance test. Click Apply. NOTE: This information is read-only.
To set up entries on the Constancy tab 1 Open the Constancy tab to set DIN constancy test parameters. The tab shows the previously saved constancy settings for the display identified in the Display field.
2 To use the settings in the DIN constancy specification (recommended), click Restore Defaults. NOTE: Using the default settings is recommended to assure conformance with the DIN specification. The default values for Veil Test Interval and the Contrast Ratio Test Interval depend on whether Luminance Control and Contrast Stability are shown as Present or Not Present. They also depend on whether you enable Constant Ambient Illumination.
To specify language on the Reporting tab 1 Open the Reporting tab and select your language, English or German. 2 Click Apply or OK.
Running a DIN Acceptance Test If the Privilege service is installed, you must log on as a privileged user before you run a DIN acceptance test. (See page 96.) To run a DIN acceptance test 1 Open the Dome CXtra Services menu and select DIN Test. The DIN Test service dialog appears. 2 Click Run Acceptance Test. 3 Using the photometer identified in the setup procedure, follow the instructions provided by the test wizard.
Running a DIN Constancy Test You must successfully run a DIN acceptance test (described in the previous section) on the device being tested before you can run the constancy test described below. If the Privilege service is installed, you must log on as a privileged user before you run a DIN constancy test. (See page 96.) To run a DIN constancy test 1 Open the Dome CXtra Services menu and select DIN Test 2 Click Run Constancy Test to open the test selection dialog.
5 After completing the last wizard dialog, click Finish. 6 In the Test Complete dialog that appears, type your name in the Name field and enter the name and location of the organization requesting the test. 7 Click Save Report. NOTE: Click Save As to store the report as an RTF file at a specified location on your hard drive. In this format, you can use common word-processing applications such Microsoft Word or Wordpad to view the report, or attach the file to e-mail transmissions.
Viewing DIN Test Results When you click Save Report after running a DIN acceptance or constancy test, the results are recorded in the history log. You can use the Reporting service to view the results at any time with the following steps: 1 Open the Dome CXtra Services menu and select Reporting. 2 Click the History tab. 3 Click the line corresponding to the test results you want to view, and then click View Detail.
AAPM TG18 Test Service The AAPM TG18 Test service supports the testing of Dome CX, Dome EX, and Dome QX displays in accordance with the recommendations of the American Association of Physicists in Medicine Task Group 18. The evaluations supported by this service are fully described in the AAPM TG18 document. Obtain a copy of the document at this URLS: http://deckard.mc.duke.edu/~samei/tg18. If you have the Privilege service installed, you must log on as a privileged user to use this service.
Warning. Successful completion of a TG18 Test frequently requires preparing the display and the environment in accordance with applicable sections of the TG18 document. The wizard used by the TG18 Test for each evaluation provides only an outline of the basic test steps. It does not describe all prerequisite conditions and detailed information required to perform the evaluation. You can define the test that you want to complete for acceptance, plus routine daily, monthly/quarterly, and annual tests.
AAPM TG18 Test Setup You must complete at least part of the setup procedure before you use the TG18 Test to run a test on any display. During initial setup, specify a number of operating parameters within these categories on the Setup Information dialog: • Photometers • Configuration • Location • Displays • Reminders Review and change the operating parameters at any time to meet changes in equipment or required testing.
2 Click Setup. The Photometers tab of the TG18 Test Setup Information dialog appears. To set up entries on the Photometers tab 1 If you have a supported photometer installed, select the model name on the Photometer pull-down list. Otherwise, select Other. If you select a supported photometer, the system automatically lists the manufacturer’s name in the field provided. 2 If you selected Other, type the manufacturer’s name. 3 Enter the photometer serial number.
To set up entries on the Configuration tab 1 Open the Configuration tab to view and modify default evaluations for each test listed. You can replace the defaults for any test with any combination of listed evaluations. The number sequence following each evaluation name is the paragraph number that describes the evaluation in the TG18 document. 2 Select a test in the Select Test to Configure list.
• Click Select/Deselect All to toggle check marks for all evaluations. Click Restore Defaults to replace current selections with the AAPM Task Group recommended evaluations. Before replacing current selections, the system shows a warning message. You can proceed to replace current evaluation selections. CAUTION: Clicking Restore Defaults replaces custom evaluation selections for all four tests, not just the currently selected test 3 Repeat steps 1 and 2 for each test. 4 Click Apply.
To set up entries on the Displays tab Review the characteristics of each display panel connected to the computer. You can indicate how each panel is used by selecting a performance class as described below. 1 Click the Displays tab. 2 Select a display in the Display pull-down list. The system supplies values for the attributes shown, if known. 3 Designate the selected display as Primary or Secondary performance class by clicking the appropriate radio button.
To set up entries on the Reminders tab Schedule optional reminders for completing tests other than acceptance. For example, if you specify a reminder for the daily test suite, the system automatically generates a reminder message for each display that you have not tested. Dome CXtra provides reminders for only those tests that are enabled. The routine tests (daily, monthly, annual) are not enabled until an acceptance test has been completed for a given display and the report saved for a given display.
3 Select the type of reminder message you want to receive — Informational or Warning. Selecting the Informational reminder adds a reminder event to the History log for each display at the intervals specified. Selecting the Warning reminder causes a message box to appear on your screen. In addition, the reminder event changes the Dome CXtra icon in the system tray and adds an entry into the History log for each display. If the reminder is issued as a warning, a status change trap is sent to the SNMP console.
To run a test 1 Open the Dome CXtra Services menu and select AAPM TG18 Test. 2 Select a display panel in the Select Display list. 3 Select a test in the Select Test list box. 4 Click Run Test to access the wizard, which prompts you to complete each evaluation in the test. Where necessary, you enter measurement or evaluation data as you complete each evaluation. NOTE: Some evaluations require you to complete multiple wizard dialogs.
Viewing AAPM TG18 Test Results You can view the test results for a TG18 Test immediately after completing all evaluations. The Test Info dialog appears upon completion of a test. Enter your name in the Tester’s Name field and your organization name in the Tester’s Company field. Then pick among these options for viewing or saving the report: • Click View Report for a summary of evaluations completed. • Click Save Report to store the information.
When you click Save Report, Dome CXtra records the test event in the History log. You can then use the Reporting service to view events in the History log. Select the TG18 Test event in the log and click View Detail to review saved test results.
Privilege Service The Privilege service allows only privileged users and administrators to change the operating parameters of the display system. All others, called non-privileged users, are limited to viewing status information and the current operating parameter values. Logging On as Privileged User/Administrator NOTE: Passwords are case-insensitive. You can change the password by following the instructions on page 97.
4 To start Dome CXtra in the privileged user mode when the computer starts and without entering a password, click the “Start as privileged user” box. To start Dome CXtra in the non-privileged user mode when the computer starts, leave the box unchecked. 5 To allow non-privileged users to exit from the Dome CXtra application, click the “Allow non-privileged users to exit” box. 6 Click OK to close the dialog.
Reporting Service The Reporting service records and displays properties and events related to Dome CXtra services installed for your display system. Properties include information about which services and versions are installed. Events are status messages transmitted at regular intervals by each Dome CXtra service. Events are recorded in the History log. The log contains routine events and error messages and events useful in troubleshooting system error conditions.
Properties Tab The Properties tab lists the Dome CXtra services installed and information about the display system components and operating parameters. Click the plus sign (+) beside any heading to display subordinate items containing detailed information. Check the display properties under the RightLight service to see both the current and the maximum supported bits per pixel.
History Tab The History tab displays events recorded in the History event log. The events appearing in the History log are dependent on each service and typically record changes that may be useful for capturing history or troubleshooting an error condition.
Sorting the History Event Log Each event is represented by a row of information with data shown in the following columns: Status. An icon indicating the event type: Information, Success, System Error, or Warning. Service. The Dome CXtra service associated with the event. Date. Record of date and time of the event. Summary. A brief event description. Click a column heading to sort the event list based on the contents of that column.
Using the Reporting Control The Reporting service allows you to specify the retention period for event information stored in the History log, and to suppress all or some alerts. To view or change the retention period Open the Dome CXtra Services menu and select Reporting Control. Click Retain to save events for the specified number of days. Events older than the specified number of days are deleted unless Dome CXtra is in a warning or error status.
To retain event information indefinitely, select Retain Complete History. When this option is selected, event information is never deleted and the History log continues to lengthen as long as the Dome CXtra application is operating. To suppress alerts Use the selections in the Disable All Popups field to deactivate all, some, or none of the popups for all of the Dome CXtra software. Check the box in the Disable RightLight Popups field to deactivate popups only in the RightLight service.
Enterprise Management Service The Enterprise Management service allows you to manage medical imaging displays from a central location using Dome Dashboard software or standard Simple Network Management Protocol (SNMP) console applications such as Castle Rock™ SNMPc. You must install the Enterprise Management service on each computer with a flat panel that you want to monitor and then use the information in this chapter to configure the SNMP service running on the computer.
SNMP Management Console You can use Dome Dashboard software or a console application on your computer to obtain the following types of information from each display running the Enterprise Management service in conjunction with the SNMP service: • Hardware identification • Current operating parameters • Test results • Status messages From your management console, you can also reconfigure a display by changing selected operating parameters.
Configuring the SNMP Service Use this section to configure the SNMP service on a computer running the Enterprise Management service. Be sure the SNMP service is installed and operating on your computer. To confirm, open the Windows Control Panel, select Administrative Tools > Services and make sure SNMP service appears in the list of services. To install the SNMP service In Windows 7, open the Control Panel, next go to Programs, then Programs and Features.
To open the Service Properties dialog 1 Open Control Panel > Administrative Tools > Services to see a list of installed services. 2 Right-click the SNMP service name and select Properties on the popup menu to open the General tab of the SNMP Service Properties dialog.
To enter traps information 1 Click the Traps tab in the SNMP Service Properties dialog. 2 Create the community name used by the SNMP console application. Type that name in the Community name field then click Add to List. (Dome Dashboard users: Be sure the community name matches the SNMP trap community shown on the Dashboard Edit Workstation dialog > Network Configuration tab.) 3 Create a list of trap destinations. Click Add to open an SNMP Service Configuration dialog.
In most cases you should enter the identifier for the host running your SNMP console application as one list item. You may also run other trap monitoring applications. Dome Dashboard users can define one or more consoles as trap destinations. 5 Click Apply to save your entries on the Traps tab. To enter security information 1 Click the Security tab in the SNMP Service Properties dialog.
3 Select READ CREATE in the Community rights drop-down list. This allows the Dome Dashboard or SNMP console application to read and set Dome CXtra parameters on this computer. 4 Type the community name used by your SNMP console application in the Community Name field and click Add. (NOTE: You can enter different community names for read, read/write, and read/create, but using the same name is recommended.) 5 Choose either Accept SNMP packets from any host or Accept SNMP packets from these hosts.
Display Agent Traps Systems running the Enterprise Management service for Dome CXtra generate only the following traps: • trapStatusObserverConnectionFailed • trapStatusChanged If the local Dome CXtra system status changes to Warning or Failure, the display agent sends a trapStatusChanged trap. For example, if an external application changes the calibration from DICOM Calibration to Original Calibration, the DICal service changes the Dome CXtra system status to Warning and sends the trapStatusChanged trap.
Available Traps Item Description trapStatusObserverConnection- Status observer connection failed. Failed Data Items: historyStatusStatus, historyStatusRecord, historyStatusServiceTest, historyStatusDateTime, historyStatusSummary trapStatusChanged Status changed. Data Items:(none) trapFPConnectionFailed (obsolete in version 3.0) Connection to RightLight service failed. (obsolete in version 3.0) Flat-panel white point cannot be achieved. trapFPLUMTest Flat-panel LUM test failed.
Troubleshooting Problem Possible Cause Solution Blue screen crashes. System instability. Install the BIOS, firmware, and driver upgrades provided by the manufacturer of your hardware. Displays dropping out or changing resolution unexpectedly. Dome CXtra not starting properly (such as showing the clock icon continuously). Display Assignment. If a different display is selected as the primary, CXtra must be restarted. (NOTE: Applies to all operating systems.) Fast User Switching.
Appendix Silent Install The servicesToInstall file specifies which services get installed during a CXtra installation. If this file is present in the same folder as the setup.exe of the CXtra package, any selections or deselections that the user makes with the select/deselect feature will be ignored. Components not listed below are always installed. Starting with CXtra 6.2.2, SNMP service configuration for Dome Dashboard is supported.
Service Format [,
If is RightLight, the options shown in the following table are allowed.
Example #2: Install Selected Services Install TestPatterns, Privilege, SNMP, and RightLight services, setting the number of measurements during conformance, no popups, Dome Dashboard Server and Community, and the ambient brightness: BEGIN FILE... rightlight, ambient, low, measurements, 32, dynamicrange, equalize, tolerance, 10, targetwhitelevel, 500, disablepopups, disablerightlightpopups testpatterns snmp, dashboardserver, ndsddv2, dashboardcommunity, ddv2community privilege ...
Index A AAPM TG18 test patterns 54 acceptance test 84 alerts, suppressing 102 Ambient tab, RightLight 18 auto alert parameters, setting 21 Auto Alerts tab, RightLight configuration 20 B Backlight Saver service, description 66 Backlight tab, RightLight configuration 14 brightness 14 C calibration 13, 17 custom DICOM 44 events, reviewing 45 Calibration tab, RightLight configuration 17 characterizing display 52 checking current conformance status 26 closing Dome CXtra 12 Color tab, RightLight 19 COM port, p
F factory calibration 38 features, new 1 fit line expression 30, 31 menu CXtra services 11 utilites 12 menu, Dome CXtra Services 11 G N graph conformance type 29 response type 28 scale 29 Graphs tab, conformance history 47 new features 1 H privileged user, changing 97 performance classes 90 photometer COM port 87 installing 8 TG18 Test 85 Photometer tab TG18 Test 87 popup warnings, RightLight, disabling history event log, sorting 101 retention period, changing 102 History log auto conformance event
R, cont.
U W uninstalling Dome CXtra services and software 12 utilities 12 warning icon on taskbar 10 reminder 92 white level 15 white level calibration 2 reinitializing settings 37 restoring factory setting 38 White Level Calibration service 35 wizard, manual conformance 24 V viewing reports 98 TG18 Test results 94 121
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