کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10731508 1043268 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance evaluation of a retrofit digital detector-based mammography system
ترجمه فارسی عنوان
ارزیابی عملکرد یک سیستم ماموگرافی مبتنی بر شناسایی دیجیتال
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
چکیده انگلیسی
A retrofit flat panel detector was integrated with a GE DMR+ analog mammography system and characterized using detective quantum efficiency (DQE). Technical system performance was evaluated using the European Guidelines protocol, followed by a limited evaluation of clinical image quality for 20 cases using image quality criteria in the European Guidelines. Optimal anode/filter selections were established using signal difference-to-noise ratio measurements. Only small differences in peak DQE were seen between the three anode/filter settings, with an average value of 0.53. For poly(methyl methacrylate) (PMMA) thicknesses above 60 mm, the Rh/Rh setting was the optimal anode/filter setting. The system required a mean glandular dose of 0.54 mGy at 30 kV Rh/Rh to reach the Acceptable gold thickness limit for 0.1 mm details. Imaging performance of the retrofit unit with the GE DMR+ is notably better than of powder based computed radiography systems and is comparable to current flat panel FFDM systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica Medica - Volume 32, Issue 2, February 2016, Pages 312-322
نویسندگان
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