Impact of a CAD system in a screen-film mammography screening program: a prospective study.
Eur J Radiol
; 80(3): e317-21, 2011 Dec.
Article
em En
| MEDLINE
| ID: mdl-20863639
ABSTRACT
OBJECTIVE:
The purpose of our study was to perform a prospective assessment of the impact of a CAD system in a screen-film mammography screening program during a period of 3 years. MATERIALS ANDMETHODS:
Our study was carried out on a population of 21,855 asymptomatic women (45-65 years). Mammograms were processed in a CAD system and independently interpreted by one of six radiologists. We analyzed the following parameters sensitivity of radiologist's interpretation (without and with CAD), detection increase, recall rate and positive predictive value of biopsy, CAD's marks, radiologist's false negatives and comparative analysis of carcinomas detected and non-detected by CAD.RESULTS:
Detection rate was 4.3. CAD supposed an increase of 0.1 in detection rate and 1% in the total number of cases (p<0.005). The impact on recall rate was not significant (0.4%) and PPV of percutaneous biopsy was unchanged by CAD (20.23%). CAD's marks were 2.7 per case and 0.7 per view. Radiologist's false negatives were 13 lesions which were initially considered as CAD's false positives.CONCLUSIONS:
CAD supposed a significant increase in detection, without modifications in recall rates and PPV of biopsy. However, better results could have been achieved if radiologists had considered actionable those cases marked by CAD but initially misinterpreted.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Filme para Raios X
/
Neoplasias da Mama
/
Mamografia
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Interpretação de Imagem Radiográfica Assistida por Computador
/
Programas de Rastreamento
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Aged
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Female
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Humans
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Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Eur J Radiol
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Espanha