GE Voluson 730Pro - Real Time Trace; Freeze; CW Cineloop

Spectral Doppler Mode
7.2.2.11 Real Time Trace
With the “Real Time Auto Trace” function the envelope curve of the Doppler spectrum (maximum
velocities) and the corresponding evaluation is automatically displayed on the monitor.
Select the [RT Trace] item to display the curve for the maximum velocities (envelope curve)
simultaneously with the Doppler spectrum.
unlit: Real Time Trace is switched off.
lit: Real Time Trace is switched on.
When starting the Doppler spectrum, the following parameters are displayed and updated every time
a new heart cycle is detected:
PSV Peak Systolic Velocity, marked with line
EDV End Systolic Velocity, marked with line
RI Resistance Index (calculated from PSV and EDV)
HR Heart Rate
Important note:
The determination of the envelope curve requires a clear and low-noise recording of the Doppler
spectrum. Otherwise the reliability of the displayed measurement results may not be ensured!
Remarks:
* Activating the Real Time Trace is only possible in write mode.
7.2.2.12 Freeze
The [Freeze] key starts and stops the 2D image and CW Doppler spectrum.
review: To Freeze an Image
(chapter 4.5.2)
7.2.2.13 CW Cineloop
review: PW Cineloop (chapter 7.1.2.14)
Voluson
®
730Pro - Basic User Manual
105831 Rev. 0 7-19