VDO MG 2100 Specifiche Scaricare il pdf (Pagina 238)

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238 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1

Chapter 36: Analyzing M-Mode images

 Refine the trace (page 238)

f To trace the outer LV walls as well as the inner LV walls:

Use the same peak and valley caliper points tracing method, but also trace the

outer LV walls using the following procedure:

1. On the upper wall, trace the outside wall along the number of cycles you want

to measure and then right-click to complete the trace. The outside wall is far

less dynamic than the inner wall.

2. On the upper wall, trace the inside peaks and valleys and right-click to

complete the trace.

3. On the lower wall, trace the inside peaks and valleys and right-click to

complete the trace.

4. On the lower wall, trace the outside wall and then right-click just once to

complete the trace and display the measurements.

Modifying the trace

You can modify the caliper points on your trace after you complete the trace.

f To move a caliper point:

1. Position the cursor over the point until the point becomes a pink cross.

2. Drag the point to a new position, then click again to set the new position.

f To add a point:

1. Position your cursor where you want to place a new point.

2. Click twice.

f To delete an individual point:

1. Position the cursor over the point until the point becomes a pink cross.

2. Right-click and select Delete Point. If more than one point is located within

the five-pixel radius, the system deletes the point that is closest point to the

cursor.

Refining the trace

After you complete a trace, you can use the system's Refine feature to

automatically adds points along a tissue layer to contour the trace more precisely

to the wall.

f To refine one trace line in your LV trace:

1. Right-click on the line and select Refine Current.

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VDO MG 2100 Specifiche Pagina 238

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