Optimization of tube potential-filter combinations for film-screen mammography: a contrast detail phantom study.
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.
Chida
Koichi
K
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
Zuguchi
Masayuki
M
Sai
Masahiro
M
Saito
Haruo
H
Yamada
Takayuki
T
Ishibashi
Tadashi
T
Ito
Daisuke
D
Kimoto
Nobumitsu
N
Kohzuki
Masahiro
M
Takahashi
Shoki
S
D008327:Mammography / Q000295:instrumentation*; D008982:Molybdenum; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D012238:Rhodium
D008982:Molybdenum; D012238:Rhodium