VDO MG 2100 Dokumentacja Pobierz pdf (Strona 340)

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340 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1

Chapter 47: Acquiring Contrast Mode images

You have successfully acquired the contrast data that the system can work with to

isolate the contrast agent ultrasound signal data from the tissue ultrasound signal

data.

The contrast overlay data is created by comparing the baseline data acquired

before the injection of the contrast agent with the data acquired after the injection.

This, in theory, isolates only the signal from the contrast agent.

f To create the reference set:

1. If the cine loop is playing, press

Cine Loop Review

to stop the playback.

2. Use the cine loop range controls under the cine loop bar to bracket a reference

period in the cine loop before the burst destruction event.

Note: The reference can be no longer than 500 frames.

3. In the left panel click Create Reference.

A progress bar appears as the system creates the reference data set.

4. Load the cine loop to be processed.

5. Click Process Cine.

A progress bar appears as the system compares the reference set to the full

cine loop to calculate the intensity markers that represent contrast agent.

f To manually create a contrast agent destruction cine loop:

1. Press

Contrast

and begin acquiring image data.

2. Position the transducer and locate your region of interest.

3. Inject the contrast agent according to your protocol and then press

Burst

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