GE LOGIQ 7

Cardiology Measurements
LOGIQ 7 Basic User Manual 10-85
Direction 2392206-100 Rev. 1
Flow Volume (FV)
Flow Volume estimates the volume of blood that flows through a
vessel per unit time. It is derived from a vessel's cross-sectional
diameter obtained from the B-Mode portion of the image and the
mean velocity of flow in the vessel obtained from the Doppler
portion of the image. It is measured in milliliters. When the FV
measurement is made, FVO is automatically calculated.
To measure flow volume:
1. Select FV from either the B-Mode or Doppler Touch Panel.
2. Place the dotted horizontal line caliper at each of the
timebase on the Doppler spectrum.
• If Trace Auto is selected, the waveform is automatically
traced.
• If Trace Auto is not selected, manually trace the desired
portion of the waveform.
The caliper moves to the B-Mode area.
3. Use the Ellipse or Trace method to measure the
circumference and area of the vessel.
The flow volume (FV) is calculated and displayed in
milliliters. The flow volume output (FVO) is also calculated
and displayed in milliliters/minute.
Flow Volume Output (FVO)
This measurement is used to measure the flow volume output in
a vessel on the Doppler spectrum. It is measured in milliliters/
minute. When the FVO measurement is made, FV is
automatically calculated.
See ‘Flow Volume (FV)’ for more information.