Developing a & quot;multiPatchPET & quot; system in GATE for the PET system design with irregular geometries.

Developing a "multiPatchPET" system in GATE for the PET system design with irregular geometries. Phys Med Biol. 2018 Aug 08;: Authors: Chen G, Weng F, Hong X, Tao W, Zhao Z, Peng Q, Huang Q Abstract This work modified the commonly used Monte Carlo tool package GATE by developing a new "multiPatchPET" system so that GATE users will be able to easily simulate PET systems with irregular geometries. The motivation was to design a brain PET scanner with high sensitivity. It is known that the compact PET scanner with a large solid coverage angle achieves high sensitivity, and thus is potential to provide better image quality in brain PET imaging than the conventional ring PET, even with fewer scintillation detectors. However, the straightforward consideration with the largest solid angle, the spherical PET scanner, is hard to manufacture. The more practical alternative is a sphere-like polyhedral PET scanner with flat detector patches. Moreover, when monolithic scintillators are chosen to construct these flat detector modules, detection efficiency is further improved. Thus, we planned to design a sphere-like polyhedral PET scanners made up of monolithic scintillators. Unfortunately, in our design study, we found it was not trivial to simulate such a scanner with the latest GATE version (8.0), since no predefined systems could be used. In this work we introduced a "multiPatchPET" system to GATE, with which we and other GAT...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research