Vector implementation of Chang's attenuation correction method for single photon emission computed tomography | Zendy

Sloboda Ronald S. | Zendy

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Vector implementation of Chang's attenuation correction method for single photon emission computed tomography

Author(s) -

Sloboda Ronald S.

Publication year - 1987

Publication title -

medical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.473

H-Index - 180

eISSN - 2473-4209

pISSN - 0094-2405

DOI - 10.1118/1.595983

Subject(s) - attenuation , attenuation coefficient , correction for attenuation , single photon emission computed tomography , computed tomography , optics , emission computed tomography , photon , tomography , point (geometry) , physics , algorithm , mathematics , computer science , mathematical analysis , nuclear medicine , geometry , positron emission tomography , medicine , radiology

A vector version of Chang's attenuation correction method for single photon emission computed tomography accommodating arbitrary convex body contours is presented and its implementation on a general purpose array processor described. For a constant linear attenuation coefficient μ=0.10 cm − 1 and contour shapes similar to those encountered in clinical work, correction factors calculated with the vector algorithm are the same to within a few percent as those obtained using the original Chang method. Typical execution speed of the new algorithm is 0.01 s/correction factor for a 64 point contour.

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