2-50
Performing an Exam
❚
Resistivity Index (RI)
1
1
Select
RI
on the touch screen.
The vertical line and the horizontal line are perpendicular to each other.
2
2
Use
[Trackball]
to move to the point of intersection, and press the
[Set]
key.
The start point is fixed, and the end point appears.
3
3
Use
[Trackball]
to move the point and press the
[Set]
key again.
4
4
The end point is fixed, and the resistive index is calculated. The peak systolic velocity
(
PS
), end diastolic velocity (
ED
), and resistivity index (
RI
) are shown on the
Result
window.
❚
Pulsatility Index (PI)
1
1
Select
PI
on the touch screen.
The vertical line and the horizontal line are perpendicular to each other.
2
2
Move the marker to the start point of the waveform using
[Trackball]
, and press the
[Set]
key.
The end point appears.
3
3
Use
[Trackball]
to manually trace the waveform, and press the
[Set]
key.
4
4
The pulsatility index is calculated. The peak systolic velocity (
PS
), end diastolic
velocity (
ED
), minimum diastolic velocity (
MD
), the maximum time-average velocity
(
TAmax
), the resistivity index (
RI
), the pulsatility index (
PI
), and systole/diastole ratio
(
S/D Ratio
) are shown on the
Result
window.
❚
Velocity-Time Integral (VTI)
1
1
Select
VTI
on the touch screen.
The vertical line and the horizontal line are perpendicular to each other.
2
2
Move the marker to the start point of the waveform using
[Trackball]
, and press the
[Set]
key.
The end point appears.
3
3
Use
[Trackball]
to trace one cycle of the waveform, and press the
[Set]
key.
4
4
The velocity-time integral is calculated. The minimum, maximum, mean velocities
(
Vmin
,
Vmax
,
Vmean
) and maximum and mean pressure gradients (
PGmax
,
PGmean
) are shown on the
Result
window.
Summary of Contents for X-CUBE 70
Page 1: ...DIAGNOSTIC ULTRASOUND SYSTEM X CUBE 70 Quick Guide Rev 0 ENG D N 70003656 ...
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