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4. Measurements
4. The CRL and the GA will be displayed.
Biparietal Diameter (BPD) measurement
Description: To measure the biparietal diameter (BPD, the transverse diameter of the
head) and calculate the Gestational Age (GA).
Instructions:
1. Press Calc, highlight OB Ovine (for ovine) or OB Bovine (for bovine), and press
SET.
2. Highlight BPD in the submenu and press SET.
3. Draw a line segment to measure the BPD.
4. The BPD and the GA will be displayed.
Head Diameter(HD) measurement
Description: To measure the head diameter of the embryo.
Instructions:
1.
2.
3.
4.
Press Calc, highlight OB Feline (for feline) or Canine (for canine), and press SET.
Highlight AC in the submenu and press SET.
Draw an ellipse (refer to Section 4.1.4).
The HD will be displayed.
Body Length (BD) measurement
Description: To measure the length of the body and calculate the GA.
Instructions:
1.
2.
3.
4.
Press Calc, highlight OB Feline (for feline) or Canine (for canine), and press SET.
Highlight FL in the submenu and press SET.
Draw a line segment to measure the FL.
The BD and the GA will be displayed.
Trunk measurement
Description: To measure the trunk length and calculate the GA.
Instructions:
1. Press Calc, highlight OB Ovine (for ovine) or OB Bovine (for bovine), and press
SET.
2. Highlight OFD in the submenu and press SET.
3. Draw a line segment to measure the OFD.
4. The trunk length and the GA will be displayed.
4.2.2 Gynecology Measurements (GYN)
Uterus (UT)
Description: To measure the length (UT-L), width (UT-W) and height (UT-H) of uterus
and calculate UT. UT = UT-L + UT-W + UT-H (in units of centimeters).
Instructions:
1.
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4.
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Press Calc, highlight GYN and press SET.
Highlight UT in the submenu and press SET.
Draw a line segment to measure UT-L.
Continue to measure UT-W and UT-H in the same manner.
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A6V/A5V User Manual