New mammography screen/film combinations: Imaging characteristics and radiation dose

Journal Article · Sat Mar 31 23:00:00 EST 1990 · AJR, American Journal of Roentgenology; (USA)

DOI:https://doi.org/10.2214/ajr.154.4.2107663· OSTI ID:6847438

Kimme-Smith, C; Bassett, L W; Gold, R H; Zheutlin, J; Gornbein, J A ^[1]

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1. Iris Cantor Center for Breast Imaging, CA (USA)

Five types of film (Kodak OM, Kodak OM-SO177, Konica CM, Dupont Microvision, and Fuji MiMa) exposed in combination with seven different intensifying screens (Min R, Min R Medium, Siemens Orthox MA, Kyokka HR Mammo Fine, Agfa Gevaert Detail S (old and new), and Konica Monarch) were processed for either 90 sec (at 33.3{degrees}C) or 3 min (at 35.0 degrees C). The films imaged a Computerized Imaging Reference System phantom with additional detail test objects placed on its surface to produce four groups of objects with which to evaluate resolution and contrast. For objects that tested resolution, the Kyokka HR Mammo Fine (Fuji) screen was statistically significantly superior; for objects that tested contrast, the Konica Monarch screen was statistically significantly superior. Extended processing did not affect Dupont and Kodak OM film as much as it affected the other films. It did affect contrast for the other films tested. The mean glandular doses from gridless exposures ranged from 32 to 80 mrad (0.32-0.80 mGy) over all film/screen/processing combinations for a 4.5-cm-thick test object. Several new film/screen combinations can provide images superior to the Kodak Min R/OM combination at a reduced radiation dose. The Kyokka HR Mammo Fine (Fuji) screen was found statistically superior in radiographic resolution of mammographic test objects and the Konica Monarch screen was found to be superior in defining contrast.

• OSTI ID: 6847438
• Journal Information: AJR, American Journal of Roentgenology; (USA), Journal Name: AJR, American Journal of Roentgenology; (USA) Vol. 154:4; ISSN AAJRD; ISSN 0361-803X
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
BIOMEDICAL RADIOGRAPHY
BODY
COMPARATIVE EVALUATIONS
DIAGNOSTIC TECHNIQUES
DOSES
ELECTROMAGNETIC RADIATION
GLANDS
IMAGE INTENSIFIERS
IONIZING RADIATIONS
MAMMARY GLANDS
MEDICINE
MOCKUP
NUCLEAR MEDICINE
ORGANS
PHANTOMS
PHOTOGRAPHIC FILMS
RADIATION DOSES
RADIATIONS
RADIOLOGY
STRUCTURAL MODELS
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