RT Journal Article SR Electronic T1 Collimator Selection for Ga-67 Imaging with the Anger Camera JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 205 OP 206 VO 6 IS 4 A1 Michael L. Caprio, Jr. YR 1978 UL http://tech.snmjournals.org/content/6/4/205.abstract AB Gallium-67 images have generally suffered from poor quality because of difficulty in properly collimating the multiple photopeaks released by the radionuclide. A comparison of the spatial resolution and septal penetration characteristics of two collimators we currently use for Ga-67 imaging—with a scintillation camera system equipped with single photopeak analyzers—is presented. Results show that the camera performs best when a medium energy collimator is used with the system’s photopeak analyzer centered around the 93-keV photopeak of Ga-67.