A new method to correct the attenuation map in simultaneous transmission/emission tomography using 153Gd/ 67Ga radioisotopes

A new method to correct the attenuation map in simultaneous transmission/emission tomography using 153Gd/ 67Ga radioisotopes

Reconstruction of the tomographic images without attenuation correction can cause erroneously high count densities and reduced image contrast in low attenuation regions. In order to solve the problem of photon attenuation, one needs to know the attenuation coefficient for the individual patient bein...

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Bibliographic Details
Main Authors: Subhash Chand Kheruka, Brian F Hutton, Umesh Chand Naithani, Lalit Mohan Aggarwal, Nirmal Kumar Painuly, Anil Kumar Maurya, Sanjay Gambhir
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2012-01-01
Series:Journal of Medical Physics
Subjects:
Optimization
SPECT
spillover and downscatter fraction
transmission map
Online Access:http://www.jmp.org.in/article.asp?issn=0971-6203;year=2012;volume=37;issue=1;spage=46;epage=53;aulast=Kheruka

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