SAEVO EVUS 8, Руководство пользователя

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7
Elastography Imaging
As an adjunct technique for clinical practice, the elastography determines if an area of tissue is hard or soft when compared
with its surroundings. The elastography image displays a range of map shades from the softest tissue in the image to the
stiffest in a given field of view.
Elastography is used in ultrasound diagnosis for small parts applications, such as breast and thyroid examinations.
NOTE:
The following description uses a breast examination performed with the L752 probe as an example.
7�1 Acquiring Elastography Images
Perform the following steps to acquire elastography image.
1. Select
L752 and Breast as the desired probe and exam type, the system automatically enters the real-time B
mode.
2. Acquire a high quality B-mode image.
3. Select the
Elastic key on the key panel to enter the elastography imaging.
As Figure 7-1 shows, the elastography image is displayed on the left and a B-mode image in a real-time B-mode
image is displayed on the right.
Select the
Dual key on the control panel to enter the single or dual-split screen display.
0
1
2
3
4
soft
hard
+1.0
-1.0
+0.5
-0.5
0.0
Strain Curve
FPS 47
D/G 3/1
GN 255
I/P 3/30
PWR 70
FRQ 3-4.8
D 16.5cm
Elastography
image in ROI
Strain Map
B-Mode Image
S S
Figure 7-1 Elastography Imaging Screen
− Elastography map provides color information for tissue stiffness.
− B-mode image is compared with the elastography image for a real-time assessment.
− Strain curve displays the strain and its corresponding displacement. X axis is the frame number, Y axis is the
displacement of the corresponding frame.
−
The elastography image in the ROI is translucent and overlapped on the B-mode image.
4. Hold the probe perpendicular to the target tissue, and compress it regularly.
Operation Concerns: