Experimental evaluation of a tellurium-123m transmission source to determine attenuation maps for SPECT

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.<
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