GE LOGIQ e, Быстрое руководство

Страница: 13 / 25

LOGIQ e Quick Guide Direction 5130174-100 Rev. 2 18
Basic Measurements/
Calculations
Volume
1. To make a volume calculation, do one of the
following:
• Make one distance measurement.
• Make two distance measurements.
• Make three distance measurements.
NOTE: The three distance measurements
should be done in the dual format mode (side
by side images). One measurement is usually
made in the sagittal plane and two
measurements in the axial plane. To use the
dual format mode, press the
L or R key on front
panel.
• Make one distance and one ellipse
measurement.
• Make one ellipse measurement.
2. Select Volume .
M/PWD
Time Interval Measurement
1. Press Measure twice; an active caliper with a
vertical dotted line displays.
2. To position the active caliper at the start point,
move the
Trackball .
3. To fix the start point, press Set . The system
fixes the first caliper and displays a second
active caliper.
4. To position the second caliper at the end point,
move the
Trackball .
5. To complete the measurement, press Set . The
system displays the time interval between the
two calipers in the measurement results
window.
Velocity Measurement
1. Press Measure ; an active caliper with a vertical
dotted line displays.
2. To position the caliper at the desired
measurement point, move the
Trackball .
3. To complete the measurement, press Set . The
system displays the velocity measurement in
the measurement results window.
PI, RI, S/D Ratio, D/S Ratio or A/B Ratio
Select PI , RI , S/D Ratio , A/B Ratio or D/S Ratio
from the Doppler Primary and secondary menu.
Perform velocity measurements.
1. The first caliper is the start point on the Doppler
waveform. This would be V
MAX
for PI, peak
velocity for RI, systole for S/D ratio, "A" velocity
for A/B ratio or diastole for D/S ratio.
2. The second caliper is the end-point caliper to
the end point of the Doppler waveform. This
would be V
d
for PI, minimum velocity for RI,
diastole for S/D ratio, "B" velocity for A/B ratio
or systole for D/S ratio.
NOTE: For the PI calculation, if Auto Trace is not
selected, manually trace the waveform between
V
MAX
and V
d
.
NOTE: For the PI calculation, if Auto Trace is on,
the system automatically traces the waveform when
Set is pressed to fix V
d
.
Worksheets
Measurement/Calculation worksheets are available
to display and edit measurements and calculations.
There are generic worksheets as well as
Application specific worksheets. The worksheets
are selected from the Measurement menu or by
pressing [Report] key on keyboard.