Compound collimator and tomography camera.

摘要

A compound collimator for use in a radionuclide emission tomography camera to image a region of an object, including a collimator structure (202) having a number of collimator elements arranged in at least two sections (206,208,210) to define a different tomographic field of view boundary for each section. Each boundary encompasses a different portion of the region and the sections in combination establish a different imaging sensitivity for each portion. At least one of the boundaries encompasses the entire region to be imaged.