Positron emission tomography and single photon emission computed tomography based on intensity attenuation shadowing methods and effects

摘要

Methods of a high resolution, stationary imaging detector for use in systems for positron emission tomography or single photon emission tomography that uses shadowing effects from intensity attenuation to provide three dimensional positioning information for a source of activity within a field of view of the detector.

主权项

1. A single stationary detector head for three dimensional positron emission tomography imaging or single photon emission tomography from a stationary position comprising:
a photomultiplier tube or silicon photomultiplier; a plurality of groups of scintillation crystal slices, each group of scintillation crystal slices comprising a plurality of scintillation crystal slices, mounted on the photomultiplier tube or silicon photomultiplier; and a plurality of shielding material slices mounted on the photomultiplier tube or silicon photomultiplier having a height greater than a height of the crystal slices, the shielding material slices each alternating with each group of scintillation crystal slices in a repeating pattern, beginning and ending with the shielding material slice, wherein the shielding material slices generate a plurality of shadows detected by the scintillation crystal slices based on a location of a source of activity emitting gamma particles toward the detector head within a field of view.