Methods and apparatus for performing sonomammography and...

A - Human Necessities – 61 – B

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A61B 6/00 (2006.01) A61B 8/08 (2006.01) A61B 10/00 (2006.01) A61B 17/34 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2173154

Apparatus (10) is provided that combines mammography equipment with an ultrasonic transducer (16) to generate ultrasonic images of the internal structure of breast tissue that are in geometric registration with a mammogram. The apparatus includes a includes and sonolucent compression plate (15), and in alternative embodiments, a gantry driven ultrasound transducer (16) or a phased array ultrasonic transducer. Methods are provided for generating a mammogram and a plurality of corresponding ultrasound images without moving the breast between the mammogram exposure and the ultrasound imaging. Methods are also provided for viewing and analyzing the ultra sound images. Apparatus and methods are also provided for enhancing X-ray images obtained from conventional mammographic systems, and with reduced overall X-ray dosage to the patient.

Appareil (10) combinant un équipement de mammographie à un transducteur (16) ultrasonore afin de produire des images ultrasonores de la structure interne des tissus mammaires, images qui se trouvent en relation d'alignement géométrique avec un mammogramme. L'appareil comprend une plaque de compression radioluminescente et sonoluminescente (15), et dans une autre réalisation un transducteur ultrasonore (16) monté sur portique ou un transducteur ultrasonore à phase variable. Des méthodes sont prévues pour créer le mammogramme et les images ultrasonores associées sans qu'il soit nécessaire de demander à la patiente de se déplacer pour exposer la poitrine au mammogramme et à l'imagerie ultrasonore. Des procédés sont en outre prévus pour visualiser et analyser les images ultrasonores. Des appareils et méthodes sont également fournis pour améliorer la qualité des radio des systèmes classiques de mammographie par rayons X et réduire la dose de rayons X reçue par le patient.

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