BIOQUANT Feature: Automated Bone Volume

BIOQUANT uses the Auto Measure tool to measure Bone Volume. Bone Volume is a special type of Area array that only measures the thresholded pixels within the preview tracing. This allows the bone itself to be measured, while excluding void spaces from measurement.

Image left: the bone has been thresholded red Image right: the bone that has been measured is pink. The remaining red threshold was filtered out.

Measurement Procedure

1. Clean up the bone threshold to eliminate artifacts, fill tears, etc. (see below)
2. On the Automatic box, click Preview. The bone preview outlines.
3. If the preview outline is satisfactory, click Measure. The measured bone changes from the preview color, defualt red, to the measured color, defualt pink.

There are many Threshold Editing tools that can be used to clean up the bone prior to Preview outlining. They include:

• Fill all holes in bone.
• Fill clicked hole in bone.
• Fill all holes but void spaces in bone (batch script)
• Erode threshold.
• Dilate threshold.
• Add threshold.
• Erase threshold.
• Copy threshold to threshold clipboard.
• Cut threshold to threshold clipboard.
• Paste threshold from threshold clipboard.
• Mask what is common between current threshold and threshold clipboard.

On most fields, either the "Fill all holes in bone" or "Fill all holes but void space in bone" tools are used. Occassionally, the Erase threshold tool is used, if an artifact crossed the bone surface.