Mindray Imagyn 7, Operator'S Manual

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6 Image Acquisition
Operator’s Manual 6 - 35
• If the image quality cannot satisfy the following criteria, you shall remove the image and
capture it again.
–
The Image must be continuous (no part of an image moves suddenly or disappears.)
– No shadow or absent signal along the scan plane.
– Clear profile of anatomy through the entire scan plane without distortion.
– Skin line is continuous.
– The images are captured from the same plane.
– There are no large black areas in the image.
6.11.4 Cine Review
Tap [Review Cine] on the touch screen in panoramic image viewing status to enter cine reviewing
mode. In cine reviewing mode, a frame marker indicates the sequence of the currently reviewed
images in the panoramic image on the left-hand side of screen.
In cine review status:
•
Use the trackball to review the captured images frame by frame.
• Tap [Auto Play] to start or end auto play.
• In auto play mode, tap [Auto Play] on the touch screen to change the play speed. When the
speed is off, the system exits auto play mode.
• Review to a certain image. Tap [Set Begin] to set the start point. Review to another image. Tap
[Set End] to set the end point. In auto play mode, the review region is confined to the set start
point and end point.
• Tap [iScape] > [Overview] to exit cine review mode. The panoramic image displays.
• In cine review mode, press <Freeze> on the control panel to return to the acquisition
preparation status.
6.12 R-VQS
R-VQS (RF-data based quantification on arterial stiffness) tracks movements of the upper and
lower vessel walls and measures vessel diameter, displacement, coefficient of hardness and PWV
(dimensionless pulse wave velocity).
Hardness coefficient: Arterial stiffness is changed with the blood pressure changing. The bigger the
value the higher the stiffness.
PWV (dimensionless pulse wave velocity) represents the transmit speed of pulse wave. The bigger
the
stiffness parameter the higher the PWV.
NOTE:
Only linear probe under Carotid exam mode supports this feature.
Perform the following procedure:
1.
Select a probe and carotid exam mode. Perform B real-time imaging and search for carotid
vessel. Try to place the vessel on the image horizontally.
2. Tap [R-VQS] and use the trackball to locate the ROI box on the target area.
Dotted line of the ROI lies in the middle of the vessel and divides the vessel upper wall and
lower wall. Use <Set> key and trackball to change ROI size and position.
Note that ROI should include the upper and lower wall of the vessel.