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Proceedings Paper

Analysis of the scatter effect on detective quantum efficiency of digital mammography
Author(s): Jiwoong Park; Seungman Yun; Dong Woon Kim; Cheol-Ha Baek; Hanbean Youn; Hosang Jeon; Ho Kyung Kim
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Paper Abstract

The scatter effect on detective quantum efficiency (DQE) of digital mammography is investigated using the cascaded-systems model. The cascaded-systems model includes a scatter-reduction device as a binomial selection stage. Quantum-noise-limited operation approximates the system DQE into the multiplication form of the scatter-reduction device DQE and the conventional detector DQE. The developed DQE model is validated in comparisons with the measured results using a CMOS flat-panel detector under scatter environments. For various scatter-reduction devices, the slot-scan method shows the best scatter-cleanup performance in terms of DQE, and the scatter-cleanup performance of the conventional one-dimensional grid is rather worse than the air gap. The developed model can also be applied to general radiography and will be very useful for a better design of imaging chain.

Paper Details

Date Published: 29 March 2016
PDF: 7 pages
Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 97832M (29 March 2016); doi: 10.1117/12.2216778
Show Author Affiliations
Jiwoong Park, Pusan National Univ. (Korea, Republic of)
Seungman Yun, Pusan National Univ. (Korea, Republic of)
Dong Woon Kim, Pusan National Univ. (Korea, Republic of)
Cheol-Ha Baek, Dongseo Univ. (Korea, Republic of)
Hanbean Youn, Pusan National Univ. Yangsan Hospital (Korea, Republic of)
Pusan National Univ. (Korea, Republic of)
Hosang Jeon, Pusan National Univ. Yangsan Hospital (Korea, Republic of)
Pusan National Univ. (Korea, Republic of)
Ho Kyung Kim, Pusan National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9783:
Medical Imaging 2016: Physics of Medical Imaging
Despina Kontos; Thomas G. Flohr, Editor(s)

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