Development of a lead x-ray compensation method in simultaneous Tl-201 SPECT & Tc-99m TCT using a flood source
Conference
·
OSTI ID:513222
- TOSHIBA Medical Engineering Lab., Tochigi-ken (Japan); and others
Several studies have been reported about simultaneous single photon emission computed tomography (SPECT) and transmission computed tomography (TCT) to obtain the attenuation map needed for non-uniform attenuation compensation methods. To perform SPECT/TCT scans, there are some TCT source and collimator configurations. In the TCT system utilizing a flood source and parallel beam collimator, the advantages are a large field-of-view without truncation, no lateral motion of the source as in the case for the scanning line method, and no fixed source position for the method with a convergent collimator. However the disadvantages of the flood source method are significant scatter component, and blockage of the detector with the flood source attached in multiple-head SPECT systems.
- OSTI ID:
- 513222
- Report Number(s):
- CONF-961123--
- Country of Publication:
- United States
- Language:
- English
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