title: Patient doses from screen-film and full-field digital mammography in a population-based screening programme.
abstract: The aim of this study was to compare mean glandular dose (MGD) in all full-field digital mammography (FFDM) and screen film mammography (SFM) systems used in a national mammography screening program. MGD from 31 screening units (7 FFDM and 24 SFM), based on an average of 50 women at each screening unit, representing 12 X-ray models (6 FFDM and 6 SFM) from five different manufacturers were calculated. The MGD was significantly lower for FFDM compared with SFM (craniocaudal): 1.19 versus 1.27 mGy, respectively, mediolateral oblique: 1.33 versus 1.45 mGy, respectively), but not all of the FFDM units provided lower doses than the SFM units. Comparing FFDMs, the photon counting scanning-slit technology provides significantly lower MGDs than direct and indirect conversion digital technology. The choice of target/filter combination influences the MGD, and has to be optimised with regard to breast thickness.
authors.affiliation: Faculty of Health Sciences, Oslo University College, PO Box 4 St. Olavs plass, NO-0130 Oslo, Norway. ingrid-helen.ryste-hauge@hf.hio.no
authors.forename: I H R
authors.initials: IH
authors.lastname: Hauge
authors.forename: K
authors.initials: K
authors.lastname: Pedersen
authors.forename: A
authors.initials: A
authors.lastname: Sanderud
authors.forename: S
authors.initials: S
authors.lastname: Hofvind
authors.forename: H M
authors.initials: HM
authors.lastname: Olerud
mesh_terms: D000368:Aged; D001822:Body Burden; D005260:Female; D006801:Humans; D008327:Mammography / Q000706:statistics & numerical data*; D008403:Mass Screening / Q000706:statistics & numerical data*; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D009928:Organ Specificity; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement; D011874:Radiometry / Q000706:statistics & numerical data*; D014962:X-Ray Film / Q000706:statistics & numerical data*