ADAPTIVE PIXEL ADJUSTMENT FOR SPECT IMAGING SYSTEM

Abstract: methods and systems are provided for increasing a quality of images generated by a single photon emission computed tomography (spect) imaging system. photons penetrating a protective shielding around detector heads of the spect system may not be handled correctly by a reconstruction algorithm used to reconstruct an image from a plurality of projection views acquired by the spect imaging system, generating artifacts and reducing a quality of the image. in one embodiment, the artifacts may be reduced or eliminated by selectively applying the reconstruction algorithm to a first portion of pixel columns of the projection views not including the artifacts, and not applying the reconstruction algorithm to a second portion of pixel columns of the projection views including the artifacts. a number of the second portion of pixel columns may be based on a sweep angle of a detector acquiring a projection view.

Inventor(s): Netanella Didi

CPC Classification: G06T11/005 ({Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating})

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