Attenuation correction in nuclear medicine studies by...

Details Attenuation correction in nuclear medicine studies by... Attenuation correction in nuclear medicine studies by...

2008-01-29

2008-01-29

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

C250S363030, C250S363070, C250S363100, C378S004000

Reexamination Certificate

active

07323689

ABSTRACT:
Attenuation correction in SPECT studies such as cardiac function imaging is carried out using an iterative statistically-based transmission projection reconstruction algorithm that is capable of modeling overlapping transmission beams from a line source array of radiation emitters. Downscatter between emission and transmission photons is additively corrected for in the algorithm. Optimal line source spacing techniques and source collimation angle selection are derived to improve performance and reduce cost.

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