6: Manipulating Images
©2018 E.I. Medical Imaging
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EVO User Manual
beam, more acoustic power, increases the sensitivity but decreases the resolution
TX Aperture
0 - 64. Increments by 2.
% Scan Size
50 to 100%
Image width. Reducing the image width to gain frame rate.
Doppler Speckle On or Off. Reduces speckle.
Lateral Filter
0 to 1 Selects the bandwidth of the lateral filter.
0 = weak filter; 1 = strong
Radial Filter
0 to 3 The bandwidth of the lateral filter (0 weak and 3 strong)
Persistence
0 to 3 Selects the strength of the color persistence filter (0 = off, 3 strongest)
Strength High
Threshold
0 to 255 The strength of the Doppler signal has to be below this threshold. otherwise no color
is shown.
Strength Low
Threshold
0 to 255 The strength of the Doppler signal has to be above this threshold, otherwise no color
is shown. Use for noise suppression.
Turbulence
Threshold
0 to 127 The turbulence level of the Doppler signal has to be below this threshold, otherwise
no color is shown.
Quality Threshold 0 to 15 The quality measure of the Doppler signal has to be above this threshold, otherwise no
color is shown.
Quality LUT
0 and 1
Selects the lookup table which defines a minimum quality for a certain B-Mode brightness.
Packet Size
8, 12, 16
The packet size is the number of sound bursts transmitted at the same location to acquire one
color scanline
