User's Manual
Table Of Contents
- M-Turbo Ultrasound System User Guide
- Contents
- Introduction
- Chapter 1: Getting Started
- Chapter 2: System Setup
- Displaying the setup pages
- Restoring default settings
- A & B Key, Footswitch setup
- Administration setup
- Annotations setup
- Audio, Battery setup
- Cardiac Calculations setup
- Connectivity setup
- Date and Time setup
- Display Information setup
- IMT Calculations setup
- Network Status setup
- OB Calculations setup
- OB Custom Measurements setup
- OB Custom Tables setup
- Presets setup
- System Information setup
- USB Devices setup
- Chapter 3: Imaging
- Chapter 4: Measurements and Calculations
- Chapter 5: Troubleshooting and Maintenance
- Chapter 6: Safety
- Ergonomic safety
- Electrical safety classification
- Electrical safety
- Equipment safety
- Battery safety
- Clinical safety
- Hazardous materials
- Electromagnetic compatibility
- ALARA principle
- Acoustic artifacts
- Guidelines for reducing MI and TI
- Output display
- Transducer surface temperature rise
- Acoustic output measurement
- Acoustic output tables
- Labeling symbols
- Chapter 7: References
- Chapter 8: Specifications
- Glossary
- Index
Chapter 4: Measurements and Calculations 49
Measurements
Thefollowingtableshowsthemeasurements
requiredtocompletethevolumeflow
calculation.Fordefinitionsofacronyms,see
“Glossary”onpage 157.
Botha2DandaDopplermeasurementare
requiredforthevolumeflowcalculation.The
Dopplersamplevolumeshouldcompletely
insonatethevessel.
Considerthefollowingfactorswhenperforming
volume
flowmeasurements:
•Usersshouldfollowcurrentmedicalpractice
forvolumeflowcalculationapplications.
•Theaccuracyofthevolumeflowcalculation
largelydependsontheuser.
•Thefactorsidentifiedintheliteraturethat
affecttheaccuracyareasfollows:
•Usingthediametermethodfor2Darea
•Difficultyensuringuniforminsonationof
thevessel.
The
systemislimitedtothefollowing
samplevolumesizes:
• C11xtransducer:1,2,3GateSize(mm)
• C60xandP10xtransducers:2,3,5,7,
10,12GateSize(mm)
•HFL38x,L25x,L38x,andSLA x
transducers:1,3,5,7,10,12GateSize
(mm)
• P21xtransducer:2,3,5,7,11.5,14
Gate
Size(mm)
•Precisioninplacingthecaliper
• Accuracyinanglecorrection
Theconsiderationsanddegreeofaccuracyfor
volumeflowmeasurementsandcalculationsare
discussedinthefollowingreference:
Allan,PaulL.etal.ClinicalDopplerUltrasound,
4thEd.,HarcourtPublishersLimited,(2000)
36‐38.
To calculate volume flow
1 Performthe2Dmeasurement:
a Onafrozenfull‐screen2D imageorduplex
image,pressthe
CALCSkey.
b Fromthecalculationsmenu,selectD
(distance)underVol Flow.
c Positionthecalipers.(See“Workingwith
calipers”onpage 41.)
d Savethecalculation.See“Tosavea
calculation”onpage 45.
2 PerformtheDopplermeasurement:
a OnafrozenDopplerspectraltrace,press
the
CALCSkey.
b Fromthecalculationsmenu,selectTAM
underVol Flow.
Averticalcaliperappears.
Transducer Exam Types
C11x Abdomen
C60x Abdomen
HFL38x Vascular
L25x Vascular
L38x Vascular
P10x Abdomen
P21x Abdomen
SLAx Vascular
Volume Flow Calculations
Menu
Heading
Measurement
(Imaging
Mode)
Calculation
Result
Vol Flow D (2D)
TAM (Doppler)
VF (Volume
Flow l/min)