United States radiological health activities: inspection results of mammography facilities
- Author:
DC Spelic
;
RV Kaczmarek
;
M Hilohi
;
S Belella
- Publication Type:Journal Article
- From:Biomedical Imaging and Intervention Journal
2007;3(2):1-16
- CountryMalaysia
- Language:English
-
Abstract:
Purpose: The Mammography Quality Standards Act (MQSA) was enacted in 1992 to set national standards for
high-quality mammography, including standards for mammographic X-ray equipment, patient dose, clinical image
quality, and related technical parameters. The MQSA also requires minimum qualifications for radiologic technologists, interpreting physicians and medical physicists, mandates acceptable practices for quality-control, quality-assurance, and
requires processes to audit medical outcomes. This paper presents the findings of MQSA inspections of facilities, which characterize significant factors affecting mammography quality in the United States.
Materials and Methods: Trained inspectors collected data regarding X-ray technical factors, made exposure
measurements for the determination of mean glandular dose (MGD), evaluated image quality, and inspected the quality
of the film-processing environment. The average annual facility and total U.S. screening exam workloads were
computed using workload data reported by facilities.
Results: Mammography facilities have made technical improvements as evidenced by a narrower distribution of
doses, higher phantom-film background optical densities associated with higher phantom image-quality scores, and
better film processing. It is estimated that approximately 36 million screening mammography exams were conducted in
2006, a rate that is almost triple the exam volume estimated for 1997. Digital mammography (DM) is now in use at approximately 14% (1,191 of 8,834) of MQSA-certified mammography facilities. The results indicate that DM can offer lower dose to the patient while providing comparable or better image quality.
- Full text:W020150907507369960005.pdf
