Realtime 3D
Real time free hand 3D Scan
System requirements
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Real time free hand 3D scan is supported in all probes.
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Install nVidia display card with minimum 256MB video memory. Recommended series is GeForce
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Install VC 2005 runtime executable (“VC Runtime vcredist_x86.exe”).
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Install Ethiroli software 3.2j – Beta or later (“Update Ethiroli 3.2j Beta” or later)
Scanning Procedure
To get a good baby face image, scan in the 2nd trimester when there is good fluid. Baby position with face anterior is best suited.
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In B-mode press C key to enter into 4D-mode (Mid Sweep Plane)
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Take a mid-line sagital section of fetal head
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Press x key to move the top-plane down. Press X to move top-plane up. In this way remove the near field skin and uterus wall echoes for the desired volume. Bring down the top-plane as near as possible to baby face.
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Press C key again to enter in 4D-mode (Volume)
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The baby face is rendered and displayed in real time. Rhythmically tilt the probe too and fro synchronizing with the rendered frame. By trial and error adjust to get a good image of baby face. Adjust the gain knob if required.. Then freeze.
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To change the view perspective press the following keys
x/X – rotate view along azimuth (volume) direction
y/Y – rotate view along axial direction
g/G – rotate view along lateral axis
Press Freeze key to stop acquisition. View can be rotated in frozen mode too.
To revert back to B-mode press un-freeze and press B key
To revert back to 3D-mode (Mid Sweep Plane) press C key
A video file demonstrating 3D can be downloaded here Free Hand Real time 3D procedure