Impact of the digitalisation of mammography on performance parameters and breast dose in the Flemish Breast Cancer Screening Programme.
Eur Radiol
; 24(8): 1808-19, 2014 Aug.
Article
em En
| MEDLINE
| ID: mdl-24816932
ABSTRACT
OBJECTIVES:
To investigate the impact of digitalisation on performance parameters and breast dose of the Flemish Breast Cancer Screening Programme. Both computed (CR) and direct radiography (DR) are compared with screen-film mammography (SFM).METHODS:
Data from 975,673 mammographic examinations were collected from units which underwent digitalisation from SFM to CR (41 units) or DR (72 units) in the period 2005-2011. Performance indicators were obtained by consulting the Screening Programme database. Phantom and patient dosimetry data were acquired from the physical technical quality assurance of the programme.RESULTS:
Digitalisation induced no significant change in cancer detection rate (CDR), percentage of ductal carcinomas in situ and percentage of breast cancers smaller than 1 cm. A decrease in false-positive results and third readings was observed, which was a time-related observation. After digitalisation, positive predictive value (PPV) increased and recall rates decreased. Compared with SFM, an increase of 30% in mean glandular dose (MGD) was found for CR, while a similar change in the opposite direction was found for DR.CONCLUSIONS:
No major differences in performance parameters after digitalisation were found. Transition of SFM to CR resulted in a higher MGD and associated lower detection-over-induction ratio (DIR), while the change to DR induced an improvement of DIR. KEY POINTS ⢠Performance parameters showed no major differences after digitalisation to CR or DR. ⢠Transition from SFM to CR results in a higher mean glandular dose. ⢠Transition from SFM to DR results in a lower mean glandular dose.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
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Mamografia
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Intensificação de Imagem Radiográfica
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Avaliação de Programas e Projetos de Saúde
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Programas de Rastreamento
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Detecção Precoce de Câncer
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
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Observational_studies
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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 como assunto:
Europa
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article