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MO‐B‐303A‐01: Digital Mammography Update: Design and Characteristics of Current Systems
Author(s) -
Kanal K
Publication year - 2009
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.3182201
Subject(s) - detective quantum efficiency , digital mammography , detector , optical transfer function , computer science , image quality , mammography , digital radiography , medical physics , electronic engineering , optics , computer vision , physics , engineering , telecommunications , medicine , image (mathematics) , radiography , cancer , breast cancer , nuclear physics
Full Field Digital Mammography (FFDM) systems are fast becoming popular and replacing conventional film‐screen mammography systems. FFDM systems use a digital detector instead of screen‐film to capture the image of the breast. Several FFDM systems based on different digital detector design and materials are currently available. Some systems are characterized as direct conversion detectors and some are based on indirect conversion process. The digital detectors can be characterized by image quality metrics such as detector quantum efficiency (DQE) and modulation transfer function (MTF). In this lecture, the physics and technology of the digital detectors used in FFDM will be discussed as well as the advantages and applications arising due to the availability of these systems will be presented. The most recent commercially available systems will also be discussed. Learning Objectives: 1. Understand the physics of digital detector technology 2. Understand the image quality metrics such as DQE and MTF 3. Recognize that vendors use varying detector technology in FFDM systems 4. Appreciate the advantages and disadvantages of digital mammography systems