Mindray DC-80A, Руководство оператора

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Image Optimization 5-37
Tip: the upper part of the 3D image in the 3D window corresponds to the orientation mark on the
probe. If the fetal posture is head down (toward the mother’s feet), and the orientation mark is
toward the mother’s head, then the fetus posture is head down in the 3D image. The 3D image can
be rotated by touching [180°] on the touch screen to show the fetus head-up.
CAUTION:
Ultrasound images are provided for reference only, not for confirming
diagnoses. Use caution to avoid misdiagnosis.

Free View (Free View Imaging)
With this function, the probe scanning direction can be controlled just by changing the probe
scanning angle. The image of interest can be easily found without any actual probe position and
direction change. This not only reduces the operations, but most importantly, it decreases patient
discomfort resulting from moving the probe.
When the intra-cavity 4D probe is activated, the parameter [Free View] can be adjusted on the B
image touch screen for adjusting the probe angle.
Range: -45°~+45°, in increments of 5°.

Wire cage
When viewing a 3D/4D image on the display monitor, it is sometimes difficult to recognize the
orientation. To help, the system displays a three-dimensional drawing to illustrate the orientation.
The blue plane shows the image acquisition where started, while the red plane shows the image
acquisition where ended. A yellow plane in the wire cage shows the position of the MPR. See the
image below:
Wire Cage
5.10.2 Note Before Use
5.10.2.1 3D/4D Image Quality Conditions
NOTE:
In accordance with the ALARA (As Low As Reasonably Achievable) principle, try to shorten
the sweeping time after a good 3D image is obtained.
The quality of images rendered in 3D/4D mode is closely related to the fetal condition, angle of a B
tangent plane and scanning technique (only for Smart 3D). The following description uses fetal face
imaging as an example. Imaging of other parts is the same.

Fetal Condition
(1) Gestational age
Fetuses of 24~30 weeks old are the most suitable for 3D imaging.
(2) Fetal body posture
Recommended: cephalic face up (Figure a) or face to the side (Figure b);
NOT recommended: cephalic face down (Figure c).