Sonoscape SSI-6000

SSI-6000/SSI-5800/SSI-5500/SSI-5500BW
Digital Color Doppler Ultrasound System
Tissue Type Phase Velocity (m/s)
Air 330
Soft tissue (average) 1540
Bone, skull 2770 +/- 185
Brain Fresh 1460
Breast in vivo 1510 +/- 5
Breast Fat 1420
Breast Mass 1600
Fat, fresh 1450
Kidney 1560
Liver, fresh 1570
Blood 1570
Lung, fresh 658
Muscle 1580
Uterus 1630
Tendon 1750
Collagen 1675
Water (20C)
1480
Thursday,April01,2010
10:08
operators manual Pa
g
e 1
Table 5.1: Sound speeds in the different materials
5.3.7 Dynamic Range
DYN
Dynamic Range increases the adjustable range of contrast by enhancing the in-
tensities of parts of the grayscale. It is useful for optimizing the ultrasound image
texture.
• go to the B mode menu (Section 5.3.1), highlight DYN.
• use the LEFT/RIGHT keys to decrease/increase the value of Dynamic Range.
 Remarks:
Dynamic Range is displayed at the 2D Image Info Area on the screen (The D in
D/G).
5.3.8 Grayscale curve
GSC
Brightness of each pixel is determined by the amplitude of the corresponding echo.
Grayscale curve (GSC) adjusts the images by changing how the amplitude is con-
verted to brightness.
The GSC is adjustable in the real time mode as well as the freeze mode.
• highlight GSC in the context menu.
• use the LEFT/RIGHT keys to decrease/increase the value of Grayscale Curve.
 Remarks:
Grayscale Curve is displayed at the 2D Image Info area on the screen (The G in
D/G).
P/N: 4701-0061-01B
5-6