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CT number calculation in IDL [message #46619]

Thu, 01 December 2005 11:54

Nikki Bloms
Messages: 7
Registered: December 2005

Junior Member

Hi ya,

This might be a remedial question, but I have tried to search for
something related with no luck.

A little background, I'm mainly using IDL for medical imaging, quality
assurance of MRI/CT/etc images. My current project is to develop a
program to automate measurements of ROI's on a water phantom imaged in
CT. The resulting data needs to be expressed in CT numbers.

My question: Is there a conversion or an easy way to convert between
pixel value and CT number? Or, are the numbers the same?

Any input is appreciated, Thank you in advance,

Nikki

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