Retrospectively determining the center of rotation of a scintill

Details Retrospectively determining the center of rotation of a scintill Retrospectively determining the center of rotation of a scintill

1995-06-14

1996-06-18

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250369, G01T 1166

Patent

active

055280420

ABSTRACT:
Two conjugate views of a patient are acquired during a SPECT nuclear medicine study. A common anatomical feature is identified in the views. Based on the differences in location of the common feature in the views, the center of rotation ("COR") of the detector during the study can be calculated after the study has been concluded. This COR can then be used during image reconstruction to determine the location at which each filtered view is backprojected. The resulting SPECT data is of higher quality because COR artifacts in the reconstructed image are reduced or eliminated.

REFERENCES:
patent: 4582995 (1986-04-01), Lim et al.
patent: 4692624 (1987-09-01), Ichihara

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