7 3D/4D
Operator’s Manual 7 - 19
4. Adjust ROI size and position and the position of VOI.
5. Select the render mode. Set the scan method and the movement of the probe (angle and
distance).
6. Press <Update> to start 3D imaging.
7. The system enters into 3D image review status when the acquisition is completed; or, you can
finish the acquisition ahead by pressing <Freeze> or <Update>.
NOTE:
In image review status, you can perform the same operations as in Static 3D.
8. Exit Smart 3D
– Press <Update> or <Freeze> to return to Smart 3D acquisition preparation status.
– Or press <B> to exit the mode.
7.6.2 Smart 3D Acquisition Preparation
The smart 3D acquisition preparation is same with these in Static 3D and 4D.
7.7 STIC (Spatio-Temporal Image Correlation)
Diagnoses made only by assessing this 3D/4D acquisition are not permitted.
Every diagnostic finding has to be evaluated in 2D as well.
STIC function provides sectional images of high spatial resolution as well as good time resolution,
which is mainly used in fetal heart observation and cardiac hemodynamic exams.
Acquired images are post processed to calculate a Volume Cine sequence representing one
complete heart cycle.
In order to achieve a good result, try to adjust the size of the volume box and the sweep angle to be
as small as possible. The longer the acquisition time, the better the spatial resolution will be.
The user must be sure that there is minimal movement of the participating persons (e.g., mother and
fetus), and that the probe is held absolutely still throughout the acquisition period.
Movement will cause a failure of the acquisition. If the user (trained operator) clearly recognizes a
disturbance during the acquisition period, the acquisition has to be canceled.
Parameter NOTE
3D/4D Scenario Setting Select 3D/4D scenario based on different scenario application.
Method Select the image acquisition method. The speed is related to scanning
distance or angle.
Distance To set the distance the probe covered from one end to the other end
during the linear sweep.
Angle To set the motion angle the probe covered during a fan sweep.
Acquiring Time To set the acquiring time of the Smart 3D acquisition.
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