Pulsed Wave Doppler - GE Logiq 500 User Manual

Doppler

Pulsed Wave Doppler

PW Doppler is typically used for displaying the speed, direction,
and spectral content of blood flow at selected anatomical sites.
PW Doppler operates in two different modes: conventional PW
and High Pulse Repetition Frequency (HPRF).
PW Doppler can be combined with B-Mode for rapidly selecting
the anatomical site for PW Doppler examinations. This is
described under B/M-Mode operation. The site where PW
Doppler data is derived appears graphically on the B-Mode
image (Sample Volume Gate). The site can be moved
anywhere within the B-Mode image.
Frequencies Used
For reference, Doppler frequencies (with penetration On or Off)
are shown according to probe in the table below.
5–44
PROBE
ON
B510 4.0
C358 2.5
C364/CBF 2.5
C386 2.5
C551/CAE 4.0
C721 5.0
E721/MTZ 5.0
ERB7 5.0
I739 5.0
546L 4.0
739L 5.0
LA39 5.0
L764/LH 5.0
P509 4.0
S316/UC 2.5
S317 2.5
S220/W 2.2
S222 2.0
S611 4.0
T739 5.0
Table 5–7. Doppler/CFM Frequency
FREQUENCY (MHz)
OFF
5.0
3.3
3.3
3.3
5.0
6.6
6.6
6.6
6.6
5.0
6.6
6.6
6.6
5.0
2.8
2.8
2.5
2.5
5.0
6.6
LOGIQ 500 Basic Users Manual
2233658–100 Rev. 0