[Insight-users] Tumor Measurements..

[Simon Warfield]

There have been some comparison studies done on this e.g.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11208850
*Comparison of diameter and perimeter methods for tumor volume calculation.

*
yasser salman wrote:

>Hi ALL..,
>To any body interested in the field of tumor
>segmentation  and measurements ,while i am doing my
>survey i found that the methods of tumor measurements
>based on the tumor’s diameter . WHO(World Health
>Organization) criteria defined a shrinkage of a tumor
>as a decrease in the product of the largest
>perpendicular diameters in the largest slice of the
>tumor. RECIST criteria defines a tumor's shrinkage as
>the decrease in the length of it's largest diameters,
>which i think will be more accurate if we calculate
>the no. of pixels in the tumor’s area (we also can
>convert it to physical coordinates in mm^2 cm^2)., 
>and what is the problems for using Pixel based. 
>can any body confirm me in this Issue or let me know
>the right way to go on Or Back OFF!
>Thanx  
>regards..,
>Yasser Salman...,
>
>
>
>
>		
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-- 
Simon K. Warfield, Ph.D. warfield at bwh.harvard.edu Phone:617-732-7090
http://www.spl.harvard.edu/~warfield           FAX:  617-582-6033
Associate Professor of Radiology,          Harvard Medical School
Director, Computational Radiology Laboratory
Thorn 329, Dept Radiology,  Brigham and Women's Hospital 
75 Francis St, Boston, MA, 02115
MA 280, Dept Radiology, Children's Hospital