Mindray DC-40 Operator's Manual page 114

To define a ROI, please try to cut the useless data as to reduce the volume
NOTE:
data, shortening the time for image storing, processing and rendering.
3D view direction definition
You can adjust the view direction of the ROI.
a. Up/Down
c. Left/Right
e. Front/Back
5-38 Image Optimization
View Curved VOI
U/D At the upper part of curved VOI
D/U At the lower part of curved VOI
L/R At the left part of curved VOI
R/L At the right part of curved VOI
F/B Displays as a dot
B/F Displays as a dot
b. Down/Up
d. Right/Left
f. Back/Front