کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1887920 1043639 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
CZT gamma camera for scintimammography
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
CZT gamma camera for scintimammography
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica Medica - Volume 21, Supplement 1, 2006, Pages 56-59