Samsung SONOACE R7 Manual do Utilizador Página 167

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Chapter 5 Measurements and Calculations
Optimization of Measurement Accuracy
2D Mode
Resolution is in proportion to the frequency of the probe.
Penetration is in inverse proportion to the frequency of the probe.
The highest resolution can be obtained at the focus of the probe where the ultrasound beam is
narrowest.
The most accurate measurements can be obtained at the focus depth. The accuracy decreases as the
distance from the focus increases, widening the beam width.
Using the zoom function or minimizing the depth display makes distance or area measurements
more accurate.
M Mode
The accuracy of time measurements can be increased when the speed and the display format are set
to high values.
The accuracy of distance measurements can be increased when the display format is set to higher
values.
Doppler Mode
It is recommended to use lower frequency ultrasound for measurement of faster blood ows.
The size of the sample volume is limited by the axial direction of the ultrasound.
Using lower frequency ultrasound increases penetration.
The accuracy of time measurements can be increased when the speed is increased.
The accuracy of velocity measurements can be increased when the vertical scale is set to smaller
values.
It is most important to use an optimal Doppler angle to enhance the accuracy of velocity
measurements.
Color/Power Doppler Mode
A protocol is not specied for images in Color Doppler Mode or Power Doppler Mode. Therefore, the
same limitations imposed when measurements are taken in B/W images apply to the accuracy of the
measurements taken in these modes.
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Comentários a estes Manuais

Prof Akhigbe 24 Apr 2024 | 14:29:06

I want to learn how to do angle correction on PW Doppler on my machine.

Prof Akhigbe 24 Apr 2024 | 14:30:30

How do I assess PW angle cursor?

Prof Akhigbe 24 Apr 2024 | 14:40:21

I don't want to join the group.