Brain perfusion SPECT in moyamoya disease

Abstract

For brain single photon emission computed tomography (SPECT), gamma cameras with multiple detectors (multihead cameras) are recommended. Although a single-head camera may be used for image acquisition, multihead cameras have two-or three-times higher sensitivity than those of single-head cameras, which can reduce scan time and enhance image quality. However, as only a few multihead gamma cameras that have more than three detectors are commercially available, dual-head cameras are at present used for brain SPECT in many institutes. © 2010 Springer-Verlag Tokyo.