OB Measurements and Calculations
LOGIQ 7 Basic User Manual
9
-
23
Direction 2392206-100 Rev. 1
Cardio-Thoracic Area Ratio (CTAR)
To calculate cardio-thoracic area ratio, you make two ellipse
measurements.
1. Select
CTAR
;
an active caliper displays.
2. Make an ellipse measurement of the cardiac area:
a. To position the active caliper, move the
Trackball
.
b. To fix the start point, press
Set
.
The system fixes the first caliper and displays a second
active caliper.
c. To position the second caliper, move the
Trackball
.
d. Adjust
the
Ellipse
control; an ellipse with an initial circle
shape displays.
•
To position the ellipse and to size the measured axes
(move the calipers), move the
Trackball
.
•
To increase the size, adjust the
Ellipse
control in a
clockwise direction.
•
To decrease the size, adjust the
Ellipse
control in a
counterclockwise direction.
•
To toggle between active calipers, press
Measure
.
e. To complete the ellipse measurement, press
Set
.
The system displays the cardiac area measurement in
the Results Window
3. To make an ellipse measurement of the thoracic area,
repeat steps a–e.
The system displays the cardio-thoracic area ratio in the
Results Window.
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Summary of Contents for LOGIQ 7
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Page 16: ...i 14 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 28: ...Introduction 1 12 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 140: ...Preparing for an Exam 4 28 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 306: ...Scanning Display Functions 6 42 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 418: ...Abdomen and Small Parts 8 18 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 644: ...Cardiology 10 128 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 688: ...Urology 12 8 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 698: ...Pediatrics 13 10 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 882: ...Customizing Your System 16 106 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 928: ...Probes and Biopsy 17 46 LOGIQ 7 Online Help Direction 2392536 100 Rev 1 ...
Page 974: ...User Maintenance 18 46 LOGIQ 7 Online Help Direction 2392536 100 Rev 1 ...
Page 983: ...GE Medical Systems ...
Page 984: ...1 2 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...