Samsung HS50 Bedienungsanleitung PDF herunterladen (Seite 169)

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Chapter 8 Measurements and Calculations

 Closed Spline

This is a basic measurement that is available in all diagnosis modes. Specify multiple points on a 2D

image to measure the circumference and area of the resulting closed spline.

1. Select Closed Spline on the monitor or touch screen. Use the trackball and the Set button on

the control panel to specify as many points as desired. After specifying the last point of the

Spline, press the Set button twice to nish measuring the Spline.

At least three points must be specied before spline can be measured.

2. The circumference and area of the closed spline created with the points you have specied will

be calculated and displayed on screen.

 %Stenosis(A)

StA stands for Stenosis Area, which is a basic measurement available in all diagnosis modes. The

area of a blood vessel is measured on a 2D image to calculate its stenosis ratio (%).

1. Select %Stenosis(A) on the monitor or touch screen. Measure the area of the vessel outer wall

using the ‘Ellipse’ measurement method.

2. When the second cursor appears, measure the area of the stenosed vessel’s inner wall. This

measurement is taken in the same way as ‘Trace’.

3. Calculate %Stenosis (A) with the following equation:

%Stenosis (A) = (Outer Area – Inner Area) / Outer Area x 100

 VolumeFlow(A)

This is a basic measurement that is only available in Spectral Doppler mode and 2D Image mode.

Specify two bars on a Spectral Doppler image and specify an ellipse in 2D Image mode to calculate

the VolumeFlow.

1. Select VolumeFlow(A) on the monitor or touch screen. Use the trackball and the Set button on

the control panel to select two bars. This measurement is taken in the same way as ‘M Time’. This

can only be done in the Loop area.

2. Use the trackball and the Set button on the control panel to select an ellipse. 2D Image Mode

will activate automatically so that you can measure the ellipse. This measurement is taken in the

same way as ‘Ellipse’.

3. When the measurement has been taken, the result is shown on the screen.

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OSCAR 23 Apr 2025 | 08:21:36

Samsung HS50 Bedienungsanleitung Seite 169