8-4 Measurement
Abdomen measurements - Used for measurements of abdominal organs (liver, gall
bladder, pancreas and kidney, etc.) and large abdominal vessels.
OB measurements - Used for measurements of fetal growth indexes (including EFW) as
well as GA and EDD calculations. The fetus can be evaluated through growth graph
analysis and fetal biophysical profile.
Cardiac measurements – Used for left ventricle function measurements and
measurements of main artery and vein parameters, etc.
Gynecology measurements - Used for the uterus, ovary and follicles, etc.
Small Part measurements – Used for small parts such as thyroid.
Urology measurements - Used for prostate, seminal vesicle, renal, adrenal, micturated
and testicle volume.
Orthopedics measurements – Used for hip joint measurement.
Vascular measurements – Used for carotid, cerebral, upper and lower extremities vessels,
etc.
EM measurements – Used for EM related full functional measurement.
8.4 Measurement Accuracy
Table 1 Error of 2D Images
Parameter Value Range Error
Distance Full screen Within ±2%
Area Full screen Within ±6%
Circ Full screen Within ±7%
Angle Full screen Within ±3%.
Volume Full screen Within ±7 %
Table 2 iScape Measurements
Parameter Probe Type Error
Distance
Full screen Within ±5 % (L14-6NE, L12-3E, P4-2, D7-
2E, 3C5A, 7L4A probe)
Full screen Within ±10 % (V11-3, CB10-4E probe)
Table 3 Time/Motion Measurements
Parameter Value Range Error
Distance Full screen Within ±3 %
Time Timeline Display Within ±2%
Heart rate Timeline Display Within ±3%
Velocity (PW
mode)
10-200cm/s: (for
L14-6NE, L12-3E,
CB10-4E, 7L4A)
10-300cm/s: (for
P4-2, D7-2E, V11-3,
3C5A)
When angle≤60º, ≤5%.
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