Mindray DC-80A, Руководство оператора

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5-54 Image Optimization
5.10.5.4 Image Saving and Reviewing in Smart 3D
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Image saving
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In 3D viewing mode, press the single image Save key (Save Image to hard drive) to save the
current image to the patient information management system in the set format and image size.
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Save clip: in 3D viewing mode, press the user-defined Save key (Save Clip (Retrospective) to
hard drive) to save a CIN-format clip to the hard drive.
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Image review
Open an image file to enter the image review mode. In this mode, you can perform the same
operations as in VR viewing mode.
5.10.5.5 Color Smart 3D
The system also supports the color Smart 3D flow image function. For details, see “5.10.10
Color 3D.”
5.10.6 STIC (Spatio-Temporal Image Correlation)
The 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.
STIC is an option, and it is not available in Smart 3D mode.
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 ensure 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 lead to acquisition failure. If the user (trained operator) clearly recognizes a disturbance
during the acquisition period, the acquisition must be canceled.
One or more of the following items in the data set indicate a disturbance during acquisition:

Sudden discontinuities in the reference image B
These are due to movement of the mother, the fetus or fetal arrhythmia during acquisition.
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Sudden discontinuities in the color display
Movement of the mother, the fetus or fetal arrhythmia affects the color flow in the same way it
affects the gray image.
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Fetal heart rate far too low or far too high
After acquisition the estimated fetal heart rate is displayed. If the value does not correspond to the
estimations based on other diagnostic methods, the acquisition failed and must be repeated.

Asynchronous movement in different parts of the image.
E.g., the left part of the image is contracting while the right part is expanding.

Color “moves” through the image in a certain direction.
This item is caused by a failure in detecting the heart rate due to a low acquisition frame rate.
Use a higher acquisition frame rate for better results.
CAUTION:
1. In all of the above cases the data set must be discarded and the
acquisition must be repeated.
2. STIC fetal cardio acquisition cannot be performed if there is severe fetal
arrhythmia.