FujiFilm SonoSite Edge II User Manual page 96

Both a 2D and a Doppler measurement are required for the volume flow calculation:
Table 5-1: Required measurements
Calculation list
Volume Flow
*Required if measuring the diameter instead of using the gate size
For the 2D measurement, you can do either of the following:
Measure the diameter of the vessel. This approach is more precise. The measurement overrides the gate
size.
Use the gate size. If you do not measure the diameter of the vessel, the system automatically uses the
gate size and "(gate)" appears in the calculation results.
The Doppler sample volume should completely insonate the vessel. You can measure either the time
average mean (TAM) or time average peak (TAP). To specify the live trace setting, see
page 3-14.
The system is limited to the following sample volume sizes:
C11x transducer: 1, 2, 3 Gate Size (mm)
rC60xi and P10x transducer: 2, 3, 5, 7, 10, 12 Gate Size (mm)
HFL38xi and L25x: 1, 3, 5, 6, 7, 8, 10, 12 Gate Size (mm)
L38xi transducer: 1, 3, 5, 6, 7, 8, 10, 12 Gate Size (mm)
Considerations
Consider the following factors when performing volume flow measurements:
You should follow current medical practice for volume flow calculation applications.
The accuracy of the volume flow calculation largely depends on the user's measurement technique.
The factors identified in the literature that affect the accuracy are as follows:
Using the diameter method for 2D area
Precision in placing the caliper
Difficulty ensuring uniform insonation of the vessel
For more information about the considerations and degree of accuracy for volume flow measurements and
calculations, see the following reference:
Allan, Paul L. et al. Clinical Doppler Ultrasound
5-12
Measurement name (Imaging
Mode)
D (2D)*, TAM or TAP (Doppler)
4th Ed., Harcourt Publishers Limited, (2000) p.36-38.
,
Calculation result
Vol Flow (Volume Flow ml/min)
"Presets setup"
Measurements and Calculations
on