Detector head position correction for hybrid SPECT/CT...

Details Detector head position correction for hybrid SPECT/CT... Detector head position correction for hybrid SPECT/CT...

2007-12-11

2007-12-11

Porta, David (Department: 2884)

Radiant energy

Calibration or standardization methods

Reexamination Certificate

active

11091253

ABSTRACT:
A system and method provide for more accurate SPECT/CT image registration. CT data is utilized to establish a global spatial coordinate system of a common test phantom. The common test phantom is then used to obtain a set of point source nuclear images. Three-dimensional CT point source data is mapped to a two-dimensional image plane of corresponding point source data, to obtain a pair of intersecting projection cones that are used to obtain a set of detector head position correction parameters to correct detector head positioning in the CT coordinate system when obtaining SPECT projection images of the same object.

REFERENCES:
patent: 6878941 (2005-04-01), Balan et al.
patent: 2003/0007593 (2003-01-01), Heuscher et al.
patent: 2004/0264628 (2004-12-01), Besson

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