Myocardial perfusion imaging using thallium-201: a new algorithm for calculation of background activity

J W Beck, J L Tatum, F R Cobb, C C Harris, J K Goodrich
1979 Journal of Nuclear Medicine  
A method is presented for calculating a background image to be subtracted from TI-201 myocardial perfusion images. The method was derived from experimental measurements of background components in which hearts of animals injected with TI-201 were replaced with hearts from nonradioactive animals. The algorithm generates a background image that accounts for TI-201 activity in surrounding tissues and within the cardiac chamber. Comparison of the computer-generated background images with background
more » ... ges with background images of the experimental models showed a mean difference of about 3% (range 1-6%). Clinical images using this method of background generation and subtraction are presented.
pmid:395282 fatcat:dm2tvuejpfaxvh5otl3shoku2y