Optimization of tube potential-filter combinations for film-screen mammography: a contrast detail phantom study |
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Authors: | Chida Koichi Zuguchi Masayuki Sai Masahiro Saito Haruo Yamada Takayuki Ishibashi Tadashi Ito Daisuke Kimoto Nobumitsu Kohzuki Masahiro Takahashi Shoki |
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Affiliation: | Department of Radiological Technology, Faculty of Medicine, Tohoku University School of Health Sciences, Seiryoumachi 2-1, Sendai 980-8575, Japan. chida@rad.cms.tohoku.ac.jp |
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Abstract: | This study evaluated how tube potential-filter combinations [with a molybdenum (Mo) anode and either an Mo or a rhodium (Rh) filter] influence image quality and radiation dose to breasts of different thicknesses in film-screen mammography using a new mammography phantom (CDMAM Phantom Type 3.4). A 28-kVp/Mo tube potential-filter combination is recommended for a breast (phantom) thickness of 40 mm or less, 28 kVp/Rh for a breast (phantom) thickness of 60 mm or less, and 30 kVp/Rh for a breast (phantom) thickness greater than 60 mm. |
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