Patent ID: 6163027
Filing Date: 2000-12-19
Classification: A61B,G01T

Abstract:
A scintillation camera designed to form a tomographic image of a subject from radiation emitted from radioisotope administrated to the subject, said camera comprising:data acquiring means for acquiring data required to reconstract a tomographic image of the subject, having a gamma-ray detector;a sensor circuit for generating ON/OFF signal which corresponds to distance between the gamma-ray detector and the subject, based in a output of a sensor;moving means for moving said gamma-ray detector toward and away from the subject in accordance with the ON/OFF state detected by said sensor circuit;recording means for recording positions of the gamma-ray detector in accordance with the ON/OFF state detected by said sensor circuit;means for obtaining a ridge line of the subject from the positions of said gamma-ray detector recorded by said recording means.