13 - 2 Operator’s Manual
13 Measurement, Comments and Body Mark
Within the selected field range, the measurement accuracy is ensured within the range mentioned
above. The accuracy specifications are performance in the worst conditions, or based on the real
test for the system, regardless of acoustic speed error.
13.2 Comments
Comments can be added to an ultrasound image to bring attention, notate or communicate
information observed during the examination. You can add comments to: zoomed image, cine
review image, real-time image, frozen image. You can type the character as comments; insert the
pre-defined comments from the comment library; insert arrow markers or add the trace.
For products equipped with the trackpad, set user-defined keys for comments (text, arrow and trace)
first, see “4.1.7 Key Configuration”.
You must ensure that the entered comments are correct. Incorrect comments
may lead to misdiagnosis.
Distance (iScape) Full screen Within ±5% (for linear, wide-
convex, and phased probes)
Full screen Within ±10% (for micro-
convex probes)
Table 13-2 Time/Motion Measurements
Parameter Value Range Error
Distance Full screen Within ±3%
Time Timeline Display Within ±2%
Heart rate Timeline Display Within ±4%
Velocity (PW mode) 10-200 cm/s (for non-
transcranial application)
When angle ≤ 60°, ≤5%
10-300 cm/s (for transcranial
application)
Within ±20%
Velocity (CW mode) 10-200 cm/s (for non-
transcranial application)
When angle ≤ 60°, ≤5%
10-300 cm/s (for transcranial
application)
Within ±20%
Table 13-1 Error of 2D Images
Parameter Value Range Error
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