Calculating Two-Dimensionsal Areas and Lengths

On any given slice, the areas and lengths of structures can be calculated

Areas and Lengths can be calculated by doing the following:

1. Choose "Analyze 2D Contours on This Plane" from the "Analyze" menu in the main window
2. In the displayed table, the volumes of each valid structure are shown:

   Area

   This is the area of the structure on this plane.

   Open Length

   This is the length of the contour on this plane without including the distance from the final point back to the initial point.

   Closed Length

   This is the length of the contour on this plane including the distance from the final point back to the initial point.

   X Min

   This is the lowest x-coordinate found for the structure on this plane as measured in calibrated real world units with the origin located at the center of the first voxel in the original image

   Y Min

   This is the lowest y-coordinate found for the structure on this plane as measured in calibrated real world units with the origin located at the center of the first voxel in the original image

   Z Min

   This is the lowest z-coordinate found for the structure on this plane as measured in calibrated real world units with the origin located at the center of the first voxel in the original image

   X Max

   This is the highest x-coordinate found for the structure on this plane as measured in calibrated real world units with the origin located at the center of the first voxel in the original image

   Y Max

   This is the highest y-coordinate found for the structure on this plane as measured in calibrated real world units with the origin located at the center of the first voxel in the original image

   Z Max

   This is the highest z-coordinate found for the structure on this plane as measured in calibrated real world units with the origin located at the center of the first voxel in the original image

3. Structures that have not been traced on this plane will be listed with zeros for all values.
4. You can choose "Copy" from the "Edit" menu of the table's window to copy all of the data in tab delimited format that can be pasted into a spreadsheet

Modified: January 20, 2003