SMALL FIELD-OF-VIEW DETECTOR HEAD ('SPECT') ATTENUATION CORRECTION SYSTEM

摘要

A detector head (300 or 310) having a small field of view, for example one which receives information from less than half a body (110) imaged, is used to form a transmission attenuation map using transmission source (320) The same detector head (300 or 310) both receives information for the transmission attenuation map and also receives imaging information e g from a radioisotope