VDO MG 2100 Especificações descarregar pdf (Página 360)

100

101

360 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1

Chapter 48: Analyzing Contrast Mode images

Setting Description

Curve Fitting Calculates and plots a perfusion curve based on the following formula*:

, where:

y = Contrast signal (pixel intensity)

A = Peak of curve

B = Slope of the curve

C = Contrast signal offset

t = Time

= Time offset

To create the curve:

1. Click

Start Curve Fitting and select a data point on the graph at the

transition from the base line to the perfusion period.

2. Click a data point where the data begins to plateau and then click

Finish

Curve Fitting

The system calculates and plots the red perfusion curve.

3. Click

Export and export the data as an image or as a CSV file for further

analysis.

* Wei, 1998, Quantification of Myocardial Blood Flow With Ultrasound-Induced

Destruction of Microbubbles Administered as a Constant Venous Infusion

Chart Y Axis

Setting Description

Contrast

Select to plot the contrast intensity information from the contrast data, and to

make the Percent Area controls and the Calculation controls available.

B-Mode Select to plot the grayscale intensity data from the B-Mode image.

Auto Scale Select to view a system-calculated best-fit scale value.

Scale Max Type a scale value between 0-100,000.

1 2 ... 355 356 357 358 359 360 361 362 363 364 365 ... 452 453

Comentários a estes Manuais

Sem comentários

VDO MG 2100 Especificações Página 360

Comentários a estes Manuais

Manuais e produtos relacionados com não VDO MG 2100