[slicer-users] Comparing difference between two scans

Murat Maga Maga at u.washington.edu
Fri Apr 16 14:30:48 EDT 2010

This is not really a Slicer question, but I thought I might get some 
pointers towards the right direction.

We would like to compare scans from two different microCT scanners. 
These are not medical scanners and are not calibrated to any standard. 
We want to measure how much difference there is at the end by using the 
standard procedures of the two facilities. For that, we thought of 
looking at the trabecular bone structural parameter estimates, and 
measure the extend they differ (if they do at all).

But given that we will be scanning identical specimen, I thought there 
might be a better measure of overall difference. In theory, these two 
datasets should register perfectly and any difference can be attributed 
to the difference in scan quality and/or reconstruction parameters. But 
I don't know how we can convert this difference in a some kind of metric.

Any suggestions?

A. Murat Maga, PhD
Senior Fellow
UW Pediatrics
Division of Craniofacial Medicine
1959 NE Pacific St RR234
Seattle, WA 98195
206-616 9703

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