CZT gamma camera for scintimammography |
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| Institution: | 1. GE Healthcare, Haifa, Israel;2. Mayo Clinic, Rochester, Minnesota, USA;3. Rambam Medical Center, Haifa, Israel;1. Brookhaven National Laboratory, Upton, NY 11973, United States;2. Korea University, Seoul 136-103, Republic of Korea;3. Fisk University, Nashville, TN, United States;1. General Atomics, PO Box 85608, San Diego, CA 92186-5608, USA;2. Lawrence Livermore National Laboratory, 700 East Ave, Livermore, CA 94550, USA;3. Princeton Plasma Physics Laboratory, PO Box 451, Princeton, NJ 08543-0451, USA;4. Purdue University, West Lafayette, IN 47907, USA;5. University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093-0417, USA;6. University of Illinois, Urbana, IL 61801, USA;1. Division of Solid State Physics, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden;2. Ren ewable Energy and Environmental Technologies, Fondazione Bruno Kessler, Trento, Italy;3. Department of Mechanics, Politecnico di Milano, Milan, Italy;1. School of Humanities and Economic Management, China University of Geosciences, Beijing, China;2. Key Laboratory of Carrying Capacity Assessment for Resource and Environment, Ministry of Land and Resources, Beijing, China;3. Open Lab of Talents Evaluation, Ministry of Land and Resources, Beijing, China;4. Department of Science and Technology, Parthenope University of Naples, Centro Direzionale-Isola C4, 80143, Napoli, Italy |
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| Abstract: | A high performance prototype gamma camera based on the semiconductor radiation detector Cd(Zn)Te is described. The camera features high spatial resolution, high-energy resolution, a reduced dead space on the edge of the field of view, and a compact format. The camera performance was first examined by comparison of small field of view examinations with those from an Elscint SP6HR standard clinical gamma camera. The new camera was found to give equal or improved image quality. The camera was then used for a systematic phantom study of small lesions in a background as would be found in breast cancer imaging. In this study the camera was able to systematically detect smaller, deeper, and fainter lesions. The camera is presently being used in a clinical trial aimed to assess its value in scintimammography where previous limitations of image quality and detector size have restricted the use of the functional imaging techniques. Preliminary results from 40 patients show high sensitivity and specificity with respect to X-ray mammography and surgery. |
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