User's Manual

Acclarix AX8 Diagnostic Ultrasound System User Manual Features
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multiple variations you will see buttons on the touch screen that let you pick which variation you
are measuring.
7.3.2.1. Auto IMT
(Note: Auto-IMT is not available in the USA and some other countries.)
Intima-media thickness (IMT) is a measurement of the thickness of tunica intima and tunica
media. The system provides an automatic measurement of the Carotid IMT.
Figure 7-6 IMT Touch Screen
To measure IMT:
1. Invoke the B-mode Measure Function in Carotid Preset.
2. Select an IMT measurement on the touch screen. A ROI box will be displayed on the
image field.
3. Select the buttons on right side of the touch screen to measure a different position of
carotid artery.
4. Press Set key to resize the ROI box, move the ROI box to locate the measure position.
5. Press Enter key to complete and get the Auto IMT measure results. Press Enter Key
again to save the results in the worksheet.
6. If you are not satisfied with the measurement result, press Undo key to restart the IMT
measurement.
7. The IMT measurement can display the following result:
 Max (the maximum value of the IMT results)
 Min (the minimum value of the IMT results)
 Avg (the average value of the IMT results)
 Width (the width of the ROI box)
 SD (the Standard Deviation of the IMT results)
 Points (the number of valid points in the IMT results)
NOTE: IMT measurement can only be active in image frozen status.