Region of Interest Main Window

To call up this module:

• Press the right-mouse key down on the Analysis button on the VIDA main panel
• Drag the cursor down to the Region of Interest menu item
• Release the right-mouse key to select the Region of Interest menu item

The Region of Interest module is designed for interactive image quantitation. Several regions of various types -- points, curves, polygons, lines, rectangles, and circles -- can be created on a slice by using the mouse buttons and cursor. Once regions have been defined, regional statistics such as mean intensity, area, pixel count, length, etc. can be extracted and stored as text files. Time-intensity plots and other graphs can also be generated for single or multiple regions.

Features such as move, rotate, scale, etc. exist to edit and/or reshape defined regions. Regions can also be cut, copied and pasted as desired either on the same slice, across slices, or time. Regions created by freehand can be smoothed and adjusted to fit nearby edges.

All defined regions can be saved to hard disk as ".roi" files and can be recalled later. Some VIDA modules, such as Contour-Based Cardiac Mechanics, Homogeneous Strain Analysis, and Imatron Blood Flow, can read ".roi" files directly to aid further analysis.

File Menu Button

View Menu Button

Graph Menu Item
The Graph menu item, under the View menu button, calls up the ROI:Graph panel. This panel is used to generate time-intensity plots and other graphs for single or multiple regions. More information.

Edit Menu Button

Properties Menu Button

Magnification Menu Item
The Magnification menu item, under the Properties menu button, calls up the ROI:Magnification panel. This panel is used to magnify images and pan left, right, up or down. More information.

Window/Level Menu Item
The Window/Level menu item, under the Properties menu button, calls up the ROI:Window/Level panel. This panel is used to change the window and level parameters for both 8 bit and 16 bit images. More information.

Regions Properties Menu Item
The Regions Properties menu item, under the Properties menu button, calls up the ROI:Regions Properties panel. This panel is used to create objects and modify objects. One can create points, curves, polygons, lines, rectangles, and circles. One can then modify these objects by moving, rotating, scaling, smoothing, adding points, adjusting, and editing portions. One can also label the centroid of an object. More information.

Loop Button

(+) and (-) Buttons