Title :
Experimental evaluation of a tellurium-123m transmission source to determine attenuation maps for SPECT
Author :
Wang, Huili ; Jaszczak, Ronald J. ; McCormick, James W. ; Greer, Kim L. ; Coleman, Edward R.
Author_Institution :
Duke Univ. Med. Center, Durham, NC, USA
fDate :
8/1/1995 12:00:00 AM
Abstract :
We propose to use a tellurium-123m line source to determine attenuation maps reconstruction of technetium-99m images. 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 was designed and manufactured. The line source has a length of 8 cm with total activity of 36-39 mCi at the time of the studies. Phantom and patient studies were conducted to evaluate the performance of the line source. The results of this study demonstrate that the tellurium-123m line source can be used to accurately determine attenuation maps for transmission studies with Tc-99m activity in the patient´s myocardium
Keywords :
cardiology; data acquisition; gamma-ray production; image reconstruction; radioactive sources; single photon emission computed tomography; technetium; tellurium; 0.036 to 0.039 ci; 8 cm; 123mTe transmission source; 99mTc SPECT; Tc; Te; attenuation maps image reconstruction; emission data acquisition; fast sequential approach; line source; myocardium; patient studies; phantom studies; single photon emission computed tomography; total activity; transmission data acquisition; Attenuation; Bones; Contamination; Detectors; Electromagnetic scattering; Isotopes; Myocardium; Particle scattering; Prototypes; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
