Correction of photon attenuation and collimator response for a body-contouring SPECT/CT imaging system.

Abstract

A priori anatomic data can be used to enhance the quality of the SPECT image when reconstructed using iterative techniques (e.g., MLEM) that use the CT data to produce a patient-specific attenuation map and a collimator response model based on the body contour produced during the SPECT acquisition.