Patent ID: 6787777
Filing Date: 2004-09-07
Classification: G01T

Abstract:
A method of diagnostic imaging with a nuclear camera which includes a rotating gantry on which at least first and second detector heads are mounted, each of the detector heads carrying an offset transmission radiation source transmitting transmission radiation through an examination region to the other detector head, each detector head carrying a collimator which segments the detector head into distinct first and second regions, the method comprising:injecting a subject to be imaged with a radiopharmaceutical composition generating emission radiation; during an emission imaging phase, detecting emission radiation events from the radiopharmaceutical composition with only the first region of each detector head to generate emission data based on the emission radiation events detected; and during a transmission imaging phase, transmitting transmission radiation through a subject to be imaged, the subject attenuating the transmission radiation; during the transmission phase, detecting transmission radiation events from the transmission radiation with only the second region of each detector head and generating transmission data based on the transmission radiation events, wherein each detector head is configured to collect emission data, transmission data, or both, using only a portion of each detector head.