Title :
Development of a lead X-ray compensation method in simultaneous Tl-201 SPECT and Tc-99m TCT using a flood source
Author :
Motomura, N. ; Ichihara, T. ; Hasegawa, H. ; Ogawa, K. ; Hashimoti, J. ; Kubo, A.
Author_Institution :
Toshiba Med. Eng. lab., Tochigi, Japan
Abstract :
We have developed a compensation method for contamination in Tl-201 data due to lead X-ray in simultaneous Tl-201 SPECT and Tc-99m TCT using a flood source. The evaluation of the proposed method was performed with a chest phantom and a normal volunteer. The significant underestimation in Tl-201 SPECT data due to the lead X-ray could be improved with the proposed method. The simultaneous Tl-201 SPECT images compensated using the proposed method were almost the same as the Tl-201 alone images. As a result, the feasibility of the proposed method was demonstrated
Keywords :
computerised tomography; lead; single photon emission computed tomography; technetium; thallium; 201Tl SPECT; 99Tcm TCT; Tc; Tl; lead X-ray compensation method; simultaneous single photon emission computed tomography; transmission computed tomography; Attenuation; Biomedical engineering; Collimators; Contamination; Electromagnetic scattering; Floods; Gamma rays; Particle scattering; Single photon emission computed tomography; X-ray scattering;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591713
