Title :
Experimental evaluation of a tellurium-123m transmission source to determine attenuation maps for SPECT
Author :
Wang, H. ; Jaszczak, R.J. ; Kadrmas, D. ; Li, J. ; McCormick, J.W. ; Coleman, R.E.
Author_Institution :
Duke Univ. Med. Center, Durham, NC, USA
fDate :
30 Oct-5 Nov 1994
Abstract :
We have proposed to use tellurium-123m line sources to determine attenuation maps for image reconstruction of technetium-99m radionuclide imaging. To experimentally evaluate the performance of the transmission line source for the fast sequential approach for emission and transmission data acquisition, a prototype tellurium-123m line source is manufactured. The line source has a length of 8 cm with total activity of 36-39 mCi at the time of the study. Phantom and patient studies are conducted to evaluate the performance of the line source. The results of this study demonstrate that the tellurium line can be used to accurately determine attenuation maps for the transmission studies with Tc-99m activity in patient´s heart
Keywords :
cardiology; image reconstruction; image sequences; medical image processing; radioactive sources; single photon emission computed tomography; tellurium; 36E-3 to 39E-3 Ci; 8 cm; 123mTe; 99mTe; SPECT; Te; attenuation maps; emission data acquisition; fast sequential approach; heart; image reconstruction; patient studies; phantom studies; technetium-99m radionuclide imaging; tellurium-123m transmission source; total activity; transmission data acquisition; Attenuation; Collimators; Contamination; Data acquisition; Degradation; Event detection; Image reconstruction; Laboratories; Radioactive materials; Single photon emission computed tomography;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
Conference_Location :
Norfolk, VA
Print_ISBN :
0-7803-2544-3
DOI :
10.1109/NSSMIC.1994.474766
