Image Optimization
5-28
Vivid S70 / S60
–
User Manual
BC092760-1EN
01
Using Tissue Tracking
1. From TVI Mode, press
Tissue Tracking
.
2. Adjust
Tracking start
close to the R-peak.
3. Adjust
Tracking end
to end systole.
4. Use the trackball to position the ROI frame over the area to
be examined.
5. Press
Select
. The instruction
Size
should be highlighted in
the trackball status bar.
NOTE:
If the trackball control Pointer is selected, press
Trackball
to
be able to select between Position and Size controls.
6. Use the trackball to adjust the dimension of the ROI.
Optimizing Tissue Tracking
•
To reduce quantification noise (variance), the Nyquist limit
should be as low as possible, without creating aliasing. To
reduce the Nyquist limit, reduce the scale while in TVI.
•
To check for aliasing, freeze the loop and apply velocity
trace (Press
Freeze
and
Q-Analysis
), see also
).
•
The main use of Tissue Tracking is to map positive systolic
displacements. This means that
Tracking start
and
Tracking end
controls should be adjusted to pick out the
systolic phase of the cardiac cycle. Adjust
Tracking start
close to the R-Peak. Adjust
Tracking end
to end systole,
typically near the T-wave.
NOTE:
Tissue Tracking on TEE acquisitions displays negative
displacements. Make sure
Invert
is selected to display
positive displacements.
•
Negative displacement can be mapped by pressing
Invert
.
Tracking start
and
Tracking end
must then be adjusted to
pick out the diastolic phase of the cardiac cycle.
•
The maximum displacement that is color-coded can be
adjusted using
Tracking scale
. If set too low, most of the
wall will show the color indicating maximum displacement. If
set too high, the maximum displacement color is never
reached.
•
Tissue Tracking provides velocity information only in the
beam direction. The apical view typically provides the best
window since the beams are then approximately aligned to
the longitudinal direction of the myocardium (except near
the apex).
Содержание Vivid S70
Страница 8: ...i 6 Vivid S70 S60 User Manual BC092760 1EN 01...
Страница 62: ...Safety 2 30 Vivid S70 S60 User Manual BC092760 1EN 01 For China only...
Страница 63: ...Device labels Vivid S70 S60 User Manual 2 31 BC092760 1EN 01...
Страница 64: ...Safety 2 32 Vivid S70 S60 User Manual BC092760 1EN 01...
Страница 140: ...Image Optimization 5 4 Vivid S70 S60 User Manual BC092760 1EN 01 Figure 5 2 2D Touch panel 4D probe Live page 1 and 2...
Страница 144: ...Image Optimization 5 8 Vivid S70 S60 User Manual BC092760 1EN 01 Figure 5 4 M Mode Touch panel page 1 and 2...
Страница 149: ...Color Mode Vivid S70 S60 User Manual 5 13 BC092760 1EN 01 Figure 5 6 Color 2D Touch panel page 1 and 2...
Страница 156: ...Image Optimization 5 20 Vivid S70 S60 User Manual BC092760 1EN 01 Figure 5 10 The PW Doppler Touch panels page 1and 2...
Страница 160: ...Image Optimization 5 24 Vivid S70 S60 User Manual BC092760 1EN 01 Figure 5 12 TVI Touch panel page 1 and 2...
Страница 163: ...Tissue Tracking Vivid S70 S60 User Manual 5 27 BC092760 1EN 01 Figure 5 14 The Tissue Tracking Touch panel page 1 and 2...
Страница 166: ...Image Optimization 5 30 Vivid S70 S60 User Manual BC092760 1EN 01 Figure 5 16 The Strain rate Touch panel page 1 and 2...
Страница 169: ...Strain Vivid S70 S60 User Manual 5 33 BC092760 1EN 01 Figure 5 18 The Strain Touch panel page 1 and 2...
Страница 172: ...Image Optimization 5 36 Vivid S70 S60 User Manual BC092760 1EN 01 Figure 5 20 The TSI Touch panel page 1 and 2...
Страница 215: ...4D Mode Vivid S70 S60 User Manual 6 15 BC092760 1EN 01 Figure 6 9 The 4D Color Flow mode Touch panel...
Страница 280: ...Measurements and Analysis 8 2 Vivid S70 S60 User Manual BC092760 1EN 01 Measurement accuracy on page 8 97...
Страница 297: ...Advanced cardiac measurements and analysis Vivid S70 S60 User Manual 8 19 BC092760 1EN 01 Figure 8 9 AFI workflow...
Страница 349: ...4D Auto MVQ Vivid S70 S60 User Manual 8 71 BC092760 1EN 01 Figure 8 37 Set Landmark stage...
Страница 382: ...Measurements and Analysis 8 104 Vivid S70 S60 User Manual BC092760 1EN 01...
Страница 457: ...Disk management Vivid S70 S60 User Manual 10 55 BC092760 1EN 01 8 Press OK See page 10 56 to perform a database backup...
Страница 479: ...Working with the report function Vivid S70 S60 User Manual 11 5 BC092760 1EN 01 Figure 11 1 The Report screen...
Страница 670: ...Probes 13 54 Vivid S70 S60 User Manual BC092760 1EN 01...
Страница 704: ...Maintenance 15 14 Vivid S70 S60 User Manual BC092760 1EN 01...
Страница 708: ...Index 4 Vivid S70 S60 User Manual BC092760 1EN 01...
Страница 709: ......