High resolution PET breast imager with improved detection efficiency [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 620.001555 Engineering and allied operations
• Thông tin xuất bản: Newport News, Va. : Oak Ridge, Tenn. : Thomas Jefferson National Accelerator Facility (U.S.) ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2010
• Mô tả vật lý: Medium: ED : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 261684
• Chủ đề: 1. 60 applied life sciences; 2. 62 radiology and nuclear medicine

Tóm tắt

A highly efficient PET breast imager for detecting lesions in the entire breast including those located close to the patient's chest wall. The breast imager includes a ring of imaging modules surrounding the imaged breast. Each imaging module includes a slant imaging light guide inserted between a gamma radiation sensor and a photodetector. The slant light guide permits the gamma radiation sensors to be placed in close proximity to the skin of the chest wall thereby extending the sensitive region of the imager to the base of the breast. Several types of photodetectors are proposed for use in the detector modules, with compact silicon photomultipliers as the preferred choice, due to its high compactness. The geometry of the detector heads and the arrangement of the detector ring significantly reduce dead regions thereby improving detection efficiency for lesions located close to the chest wall.