Volume Mode
11.1.1
Principle of Volume Acquisition
The acquisition of volume data sets is performed by 2D scans with special transducers designed for
the 2D scans, the 3D sweep, and the real time 4D scans.
The Volume acquisition is started using a 2D image with superimposed VOL-BOX. The 2D start
image represents the central 2D scan of the volume. The volume scan itself sweeps from one
margin to the other margin of the volume to be acquired.
The VOL BOX frames the Region of Interest (ROI) which will be stored during the volume sweep.
The display shows the actual 2D scan. In 3D, the range of the volume sweep is indicated by the
Sweep-Box, which is displayed at the bottom right of the screen (Vol Angle). The moving
indicator gives information about the position of the B image during the volume scan.
The sweep time varies and depends on the VOL-BOX size (depth range, angle) and the quality
(5 positions).The probe must be held steady and in place during the 3D volume scan. The real time
display of the swept B frames allows continual observation of the scan quality.
During the real time 4D scan it is not necessary to hold the probe steady because of the continuous
volume acquisition.
11.1.2 Principal
Scanning
Modes
The volume scan is automatically performed by a tilt movement of the 2D scan head.
The scanned volume is similar to a section of a torus.
Transducer type:
Abdominal
Small
parts
Transvaginal
Transrectal
Voluson
®
730Pro - Basic User Manual
105831 Rev. 0
11-5
Содержание Voluson 730Pro
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