Appendix A Technical Description
Instructions for Use A - 29
Measurements and Reports
Measurements are available during all examinations on real-time, frozen, and CINE images.
Note: Images saved in the ultrasound image output format (with or without overlays) can be recalled
for measurements after the examination ends.
General Functions
 2D-mode and M-mode have unlimited sets of calipers per image for distance
measurements
 Doppler has unlimited sets of calipers per image for velocity or frequency measurements
 2D measurement tools on frozen/CINE and real-time images include distance, ellipse, and
trace
 2D measurement packages include distance, area, circumference, volume, stenosis, and
volume flow
 Label then Measure or Measure then Label workflow
General 2D-mode Measurements
 Distance/Depth
 Circumference (using a Trace or Ellipse method)
 Area (using an Ellipse or Trace method)
 Volume and Stenosis
 Volume Flow (using an Area or Diameter method with a Doppler measurement)
General M-mode Measurements
 Distance/Depth
 Heart Rate
 Slope
 Time
General Doppler Measurements
 Measurements on a frozen or CINE image including velocity/frequency, HR (heart rate),
S/D (systolic/diastolic ratio), RI (resistive index), PI (pulsatility index), TAMx (time-average
maximum), TAMn (time-average mean), Slope (Acceleration/Deceleration), Volume Flow,
A/B ratios, Time
 Automatic Doppler statistics (automatic waveform trace) for real-time and CINE display of
Doppler spectral measurements and calculations, including PS, ED, S/D, PI, RI, TAMx,
TAMn
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