Comparison of two screen-film combinations in contact and magnification mammography: detectability of microcalcifications

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.168.3.3406394· OSTI ID:6863476

Oestmann, J W; Kopans, D B; Linetsky, L; Hall, D A; McCarthy, K A; White, G; Swann, C; Kelley, J E; Johnson, L L

A new dual-screen, dual-emulsion-film combination that allows a decrease in radiation dose of approximately 66% was compared with a widely used single-screen, single-emulsion-film system in contact and magnification mammography. Clustered microcalcifications randomly superimposed on a breast phantom were detected, and the location and number of individual calcifications were determined by four observers. The detectability of calcifications, determined with a receiver operating characteristic (ROC) analysis area, was 0.92 for magnification and 0.82 for contact mammography with the single-emulsion-film system, compared with 0.84 and 0.72, respectively, with the dual-emulsion-film system. More clusters were correctly located and more individual calcifications were counted with magnification than with contact mammography. The dual-emulsion-film system with the magnification technique performs as well as the single-emulsion-film system with the contact technique, while retaining a decrease in required dose of approximately 40%.

• Research Organization: Massachusetts General Hospital, Boston (USA)
• OSTI ID: 6863476
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 168:3; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
BODY
CALCINOSIS
COMPARATIVE EVALUATIONS
DIAGNOSTIC TECHNIQUES
DOSES
GLANDS
MAMMARY GLANDS
MEDICINE
MOCKUP
NUCLEAR MEDICINE
ORGANS
PATHOLOGICAL CHANGES
PHANTOMS
RADIATION DOSES
RADIOLOGY
STRUCTURAL MODELS