G - Physics – 01 – T
Patent
G - Physics
01
T
G01T 1/164 (2006.01) G01T 1/29 (2006.01)
Patent
CA 2297847
A method of imaging a target organ in a patient by SPECT, by using a gamma camera having a gamma detector provided with a fan-beam collimator (2), focusing to a focal line parallel to the patient's body length, and by computer reconstructing the distribution of the radioactivity inside the patient's body from the acquired planar images by using certain reconstruction algorithms. The images are acquired along at least one linear orbit performed in a direction perpendicular to the patient's body, and the collimator focal line is made to travel throughout said target organ during the acquisition. The invention further relates to an equipment for performing this method.
Procédé servant à prendre l'image d'une organe ciblé chez un patient au moyen de SPECT, ce qui consiste à mettre en application une caméra gamma pourvue d'un détecteur gamma comportant un collimateur (2) de faisceau en éventail, à effectuer la mise au point sur une ligne focale parallèle à la longueur du corps du patient et à reconstruire par ordinateur la distribution de la radioactivité à l'intérieur du corps du patient à partir des images planes saisies, au moyen de certains algorithmes de reconstruction. On saisit ces images le long d'au moins une orbite linéaire dans un sens perpendiculaire au corps du patient et on fait se déplacer la ligne focale du collimateur à travers ledit organe ciblé pendant la prise d'image. L'invention concerne, de plus, un équipement servant à mettre ce procédé en application.
Van Dulmen Adrianus A.
Walrand Stephan
Fetherstonhaugh & Co.
Van Dulmen Adrianus A.
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