Gamma camera to the location of the lymph nodes sentinel

摘要

The present invention relates to a device for the location of the fabrics marked (130), in particular for the location of sentry lymph nodes, and comprising a collimator with holes (11) adapted to select a radioactive radiation emitted by the tissues marked (130) by at least one radioactive marker, at least in a defined direction, at least a scintillation crystal (20) to be transformed into a scintillation photons of the radioactive radiation (120), and transformation means of multichannel systems (30) of said scintillation photons in the electrical detection signals, said electric signals being in particular a function of the channels have been affected by said scintillation photons, in which the scintillation crystal is preferably an inorganic crystal non-hygroscopic, with a yield of the photons of scintillation photons / mev more than 9000.