Appendix A Technical Description
Instructions for Use A - 9
Continuous Wave Doppler (Auxiliary CW)
(Requires the Cardiac Application Module option or the Continuous Wave Doppler Interchangeability
Option)
 Activates the port for Continuous Wave Doppler (pencil) transducers
Color Doppler Velocity (CDV) Features
 2D/Color display
 User-adjustable color region of interest (ROI), size, and position
 Independent controls for color gain, PRF, invert, baseline, space/time, persistence, priority,
and smoothing
 Up to four user-selectable transmit frequencies
 Color On/Off invert and baseline shift functions
 Three user-selectable color flow states: low, general, and high
 Color-adaptive wall filter
 PRF range of 100 Hz to 19,500 Hz
 Six color velocity maps (three velocity maps and three velocity + variance maps (VV))
 Up to 512 color samples per color data line
 Up to 512 2D-mode lines plus 256 color lines
Color Doppler Energy (CDE) Features
 Power mode On/Off control
 Background Power Doppler on and off selection
 Power Gain from -20 dB to 20 dB in one decibel increments
 Independent controls for power gain, PRF, invert, baseline, resolution/frame rate,
persistence, priority, and smoothing
 Up to four user-selectable transmit frequencies
 Up to eight user-selectable Power map selections
 Up to five persistence levels (0 to 4)
 Up to four levels of Power smoothing (0 to 3)
 PRF range from 100 Hz to 19,500 Hz
 Adaptive wall filter
 Three user-selectable flow states: low, general, high
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