Samsung ACCUVIX XG Manual de usuario descargar pdf (Pagina 253)

5-13

Chapter 5 Measurements and Calculations

M Distance

This is a basic measurement that is available in M Mode only. You can specify two points in an M image

and measure the distance, elapsed time and velocity between them.

1. Press the M Distance button on the touch screen. “M Distance” is displayed in the user information

area.

2. Specify two points and then measure the shortest distance between them. The way that it is

measured is the same as in ‘Distance.’

3. Once measurement is done, the result is displayed on the screen.

D Velocity

This is a basic measurement that is available in Spectral Doppler Mode only. You can specify two points

in a Spectral Doppler image and measure the distance between them, and the velocity at each point

to calculate the velocity change, time change and acceleration.

NOTE: In a Spectral Doppler image, the X- and Y-axes represent time and velocity, respectively.

1. Press the D Velocity button on the touch screen. “D Velocity” is displayed in the user information

area.

2. Specify two points and then measure the shortest distance between them. The way that it is

measured is the same as in ‘Distance.’

3. Once measurement is done, the result is displayed on the screen. The displayed measurement

results vary depending on the settings in Utility > Measure Setup > General > Caliper.

X

V1: Velocity at Point 1

X

V2: Velocity at Point 2

X

PGmax: Max Pressure Gradient

X

V2-V1: Change in Velocity

X

Time: Change in Time

X

Acc: Acceleration

X

RI: Resistivity Index

X

S/D: Systolic to Diastolic Ratio

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Samsung ACCUVIX XG Manual de usuario Pagina 253