In a conference organized by the Gordon Center, Dr. Scott Metzler explored novel uses of collimation to improve the resolution and the flexibility of existing PET scanners. In particular, he evaluated the use of a collimating mask to reduce the effective width of the lines of response (LORs). The collimator, that was built by Dr. Metzler’s team, rotates through eight positions in order to obtain samples of sub-LORS. Although the efficiency was reduced, both resolution and sampling were improved. Collimation can also be combined with super-sampling of the patient using a deliberately misaligned bed to reduce the need for rotation. Dr. Scott Metzler is a Research Associate Professor of Radiology at the University of Pennsylvania.
About the Gordon Center for Medical Imaging:
The Gordon Center for Medical Imaging at Massachusetts General Hospital and Harvard University develops new biomedical imaging technologies used in diagnosis and therapy. In addition to translational research, the Center organizes lectures and symposiums as part of its effort to inspire the public and the scientific community about the latest research topics in medical imaging.