ROI

The Region of Interest (ROI) is the portion of the image where both the diameter and the IMT are calculated. The points of the Lumen-Intima interface and the Media-Adventitia interface are displayed within the ROI in cyan and red color respectively.

The ROI can be moved and/or resized. Each time you change the position and/or size of the ROI, the analysis is re-initialized.

Draw a new ROI:

• Click on the Set ROI button in the Setup Panel (the button remains active).
• Click inside the video window and drag until the ROI is complete (the size of the ROI is shown in the Setup Panel).
• When you release the mouse, the analysis is initialized.

Modify the ROI:

• Click on one of the sides or one of the corners of the ROI.
• Drag to change the size of the the ROI.

NOTE: an alternative, you can modify the size of the ROI by typing the value in the Setup Panel.

Move the ROI:

• Click and hold inside the ROI.
• Drag the ROI to the location of interest.

NOTE: as an alternative, you can modify the position of the ROI by typing the value in the Setup Panel.