Digital scan mammography apparatus

Details Digital scan mammography apparatus Digital scan mammography apparatus

A - Human Necessities

61

B

A61B 6/03 (2006.01) A61B 6/00 (2006.01) H05G 1/26 (2006.01)

Patent

CA 2177489

An apparatus is disclosed for imaging a patient's breast (18) by scanning an imaging signal (58) and a receiver (30) across the patient's breast (18) and then constructing a time delay integration composite image based on the scan. The receiver (30) includes an array of radiation sensitive detector elements (132). Read out of the array (132) is synchronized with the scanning motion of the receiver (30) based on output from position encoder (104) such that synchronization is maintained despite scan drive variances. A novel assembly (106) is also disclosed for allowing selection of an appropriate radiation filter based on particular imaging conditions.

L'invention se rapporte à un appareil utilisé pour visualiser la poitrine (18) d'un patient en balayant un signal numérique (58) et un récepteur (30) dans la poitrine (18) de la patiente, et pour former une image composite d'intégration de temps de propagation sur la base du balayage. Le récepteur (30) comprend un réseau d'éléments de détection (132) sensible aux rayonnements. La lecture du réseau (132) est synchronisée par le mouvement de balayage du récepteur (30) basé sur une sortie d'un codeur de position (104) de sorte que la synchronisation soit maintenue en dépit des variations du balayage. L'invention se rapporte également à un nouvel ensemble (106) permettant de sélectionner un filtre approprié interceptant les radiations, à partir de conditions de visualisation particulières.

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