GE Logiq P5 User Manual

Vascular Measurements
LOGIQ 5 Basic User Manual 11-11
Direction 2300002-100 Rev. 2
A/B Ratio
In B-Mode and M-Mode, you can calculate A/B ratio by diameter 
or by area.
DiameterTo calculate A/B ratio by diameter:
1.  From the Generic Touch Panel, select A/B Ratio. 
2. Select ratio(Diam). 
The system displays an active caliper.
3.  Make a distance measurement of the first velocity. 
The system displays an active caliper for the second 
distance measurement.
4.  Make a distance measurement of the second...

Vascular
11-12 LOGIQ 5 Basic User Manual
Direction 2300002-100 Rev. 2
M-Mode Measurements
 Figure 11-4. M-Mode Touch Panel
NOTE:  The following instructions assume that you first scan the patient 
and then press Freeze. 

Vascular Measurements
LOGIQ 5 Basic User Manual 11-13
Direction 2300002-100 Rev. 2
% Stenosis 
In M-Mode, you measure % Stenosis by diameter.
NOTE:  Always take the measurement from a cross-sectional view of the 
vessel.
1. Select % Stenosis. 
The system displays an active caliper.
2.  Make a distance measurement of the inner area of the blood 
vessel:
a.  To position the active caliper at the start point, move the 
Trackball.
b.  To fix the start point, press Set.
The system fixes the first caliper and...

Vascular
11-14 LOGIQ 5 Basic User Manual
Direction 2300002-100 Rev. 2
A/B Ratio
In M-Mode you can measure A/B ratio by diameter, time, or 
velocity.
DiameterTo calculate A/B ratio by diameter:
1. Select A/B Ratio. 
2. Select ratio(Diam). 
The system displays an active caliper.
3.  Make a distance measurement of the first velocity. 
a.  To position the active caliper at the start point, move the 
Trackball.
b.  To fix the start point, press Set.
The system fixes the first caliper and displays a second...

Vascular Measurements
LOGIQ 5 Basic User Manual 11-15
Direction 2300002-100 Rev. 2
A/B Ratio (continued)
TimeTo calculate A/B ratio by time:
1. Select A/B. 
2. Select ratio(Time). 
The system displays an active caliper.
3.  To position the caliper at the A point, move the Trackball.
4.  To fix the measure point, press Set.
The system displays a second active caliper.
5.  To position the second caliper at the B point, move the 
Trackball.
6.  To complete the measurement, press Set.
The system displays the...

Vascular
11-16 LOGIQ 5 Basic User Manual
Direction 2300002-100 Rev. 2
Doppler Mode Measurements
 Figure 11-5. D-Mode Touch Panel Example
Control Assignment
Cancel TransferAfter the Auto Vascular calculation results are assigned to a 
particular vessel, the user can cancel the assignment and 
assigned parameters are removed from Worksheet and Report 
page.
When Cancel Transfer occurs, a message appears on the 
screen to indicate the value was erased from Worksheet and 
Report page.
Vessel locationIf the...

Vascular Measurements
LOGIQ 5 Basic User Manual 11-17
Direction 2300002-100 Rev. 2
Control Assignment (continued)
Modify Auto CalcsWhen you select this key, the Modify Calculation menu is 
displayed as below. In this menu, you select parameters to 
display in the Auto Vascular Calculation window. Only 
parameters that can be used by the calculation are displayed.
Select Save as Default to save the selected parameters as the 
default calculations for this application.
Select Return to return to the...

Vascular
11-18 LOGIQ 5 Basic User Manual
Direction 2300002-100 Rev. 2
Naming format for vessels
When you want to measure a vessel, on the Touch Panel you 
select the folder for the vessel. Many vessel folders are labeled 
with an abbreviation. The following table lists abbreviations used 
for naming vascular vessels. 
Table 11-2: Vascular Vessel Abbreviations
AcronymName
ACA Anterior Cerebral Artery
AComA Anterior Communicating Artery
Axill Axillary Artery
Axill V Axillary Vein
BA Basilar Artery
Basil V...

Vascular Measurements
LOGIQ 5 Basic User Manual 11-19
Direction 2300002-100 Rev. 2
PCA Posterior Cerebral Artery
PComA Posterior Communicating Artery
SMA Superior Mesenteric Artery
SMV Superior Mesenteric Vein
SUBC Subclavian Artery
SUBC V Subclavian Vein
Sup Femoral Superficial Femoral Artery
TCD Transcranial Doppler
TIPS Transjugular Intrahepatic Portosystemic Shunt
VERT Vertebral Artery
Table 11-2: Vascular Vessel Abbreviations
AcronymName 

Vascular
11-20 LOGIQ 5 Basic User Manual
Direction 2300002-100 Rev. 2
Auto Vascular Calculation Overview
Auto Vascular Calculation enables the LOGIQ 5 to detect and 
identify a cardiac cycle. It allows you to assign measurements 
and calculations during live timeline imaging, while the image is 
frozen, or in CINE. Peak values are detected for venous flow.
During cardiac cycle detection, the system identifies the cardiac 
cycle using calipers, vertical bars, and/or highlighting of timeline 
data. Use of...