Mindray DC-85 - 5.10 3 D;4 D

Image Optimization 5-37
5.10 3D/4D
NOTE:
3D/4D imaging is largely environment-dependent, so the images obtained are provided
for reference only, not for confirming a diagnosis.
5.10.1 Overview
Ultrasound data based on three-dimensional imaging methods can be used to image any structure
where a view can’t be achieved by standard 2D-mode to improve understanding of complex
structures.
 Terms
 3D image Volume Rendering (VR): the image displayed to represent the volume data.
 4D: Continuous-sweep volume acquisition.
 View point: a position for viewing volume data/3D image.
 MultiPlaner Rendering (MPR): The three sectional planes of the volume acquisition. As
shown in the figure below, XY-paralleled plane is C-section, XZ-paralleled plane is B-
section, and YZ-paralleled plane is A-section. The probe is moved along the X-axis.
 ROI (Region of Interest): a volume box used to determine the height and width of
scanning volume.
 VOI (Volume of Interest): a volume box used to display 3D image (VR) by adjusting
interesting region in MPR.
 ROI and VOI
After the system enters 3D/4D imaging, a B image with ROI displays on the screen. A line
(shown in the following figure) that shows the upper edge position of VOI is inside ROI.
Z
View point
X
Y
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