Patent ID: 6967331
Filing Date: 2005-11-22
Classification: G01T,G21K

Abstract:
1. A method of imaging a target organ in a patient by SPECT, by using a gamma camera having a gamma detector/rake collimator combination including a gamma detector perpendicularly provided on its outer surface with a plurality of collimator septa in a mutually parallel arrangement, said method comprising: focusing the collimator to a focal line parallel to the patient's body length, wherein said rake collimator includes in addition to said septa at least one raised wall, provided on the outer surface of the gamma detector and extending in the longitudinal direction thereof, said raised wall being transversely positioned with respect to said septa with a substantial portion extending beyond said septa; acquiring planar images by relative movement between the gamma camera and the patient's body along at least one linear path in a direction perpendicular to the patient's body length; and reconstructing with a computer the distribution of radioactivity inside the patient's body from the acquired planar images.