SAEVO EVUS 8, Руководство пользователя

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6 Acquiring Images
66 Basic User Manual
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5
0
10
10
5
Y axis:
Frequency
X axis: Time
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Figure 6-9 M-Mode Imaging Screen
− X-axis is the time scale.
−
Y-axis is the depth scale.
NOTE:
Once the M mode is activated, you can move the trackball to stop the M trace and adjust the M line. The
system continues tracing if the trackball is idle for more than 0.5s.
5. Optimize M-mode image. For details, refer to Section 6.4.3 Optimizing M-Mode Images.
6. Select the
M key to exit.
6�4�2 Anatomical M-Mode
Anatomical M-mode is used for fetal cardiac applications. Anatomical M-mode can be used with phased array
probes when performing cardiac exams or convex probes when performing abdominal exams. In the anatomical
M-mode, the M line can be positioned perpendicular to the anatomical structure and be adjusted 360° even when
viewing motion patterns for irregular objects. It is used to study the ventricular function of the heart.
Perform the following steps to acquire anatomical M-mode images.
1. Enter the inactivated B+M mode, and select the
Menu key. A menu pops up on the screen.
2. Select Steer M by using the trackball or the ↑ or ↓ key.
3. Rotate the Menu key or select the ← or → key to set the number of M lines.
Multiple M lines display after selecting the desired number as the following figure shows.
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5
10
M Line
2D Image
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Figure 6-10 Inactivated Anatomical M-Mode Imaging Screen