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Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 415

Appendix C: Descriptions of control panel controls

In Color Doppler Mode and Power Doppler Mode: Applies to the color signal

data only. It does not apply to the B-Mode background data. Levels: Off, Low,

Med, High, Max. Helpful when you are studying abdominal organ tissue such as

liver, kidney and pancreas.

In Contrast Mode: Sets the process persistence filter level. Levels: None, MIP.

Physio Settings

When in a Mode window, activates the physiological settings panel.

Power

Activates Power Doppler Mode acquisition and begins displaying the power box

overlay over the B-Mode background image.

Pre Trigger

In Contrast Mode, starts an analysis based on the number of frames defined in the

General tab of the Preferences window.

Stores cine loop data for a predefined number of image frames acquired after you

press the control, as compared to

Cine Store

which stores data acquired before you

press the control. To ensure that the system stores your cine loop, select the Auto

SAVE at Scan Completion option in the General tab of the Preferences window.

In B-Mode, Color Mode, Power Doppler Mode, Contrast Mode: You define the

pretrigger's cine loop size in the Cine Loop Size section (page 71) of the General

tab in the Preferences window.

Presets

Active during image acquisition in all modes except 3D-Mode. This rocker switch

cycles you through all the preset groups of acquisition parameters for the active

imaging Mode. The list of presets include the transducer-specific presets as well

as any custom presets that other operators added to the system.

All presets are both mode dependent, transducer dependent and application

dependent.

Priority

Determines the threshold point on the gray scale above which the system does

not apply color data. The red marker along the left side of the gray scale indicates

the threshold point.

Push up to assign more priority to the color data. Pull down to assign less priority

to the color data and more priority to the threshold on the B-Mode grayscale bar.

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VDO MG 2100 Especificações Página 415