Influence on screening performance of second reading strategies in two lowvolume programs

Détails

ID Serval
serval:BIB_475F969CFE48
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Sous-type
Poster: résume de manière illustrée et sur une page unique les résultats d'un projet de recherche. Les résumés de poster doivent être entrés sous "Abstract" et non "Poster".
Collection
Publications
Titre
Influence on screening performance of second reading strategies in two lowvolume programs
Titre de la conférence
International Breast Cancer Screening Network : Biennial Council Meeting 2006
Auteur(s)
Bulliard J.L., Jemelin C., De Landtsheer J.P., Lepori D., Levi F.
Adresse
Ottawa, Canada, May 11-12, 2006
Statut éditorial
Publié
Date de publication
2006
Langue
anglais
Résumé
BACKGROUND: The European Guidelines specify a minimum of 5,000 screening cases to be read yearly by radiologists carrying out second reading in non-centralized programs. This professional requirement is difficult to reach and/or to implement in regional programs covering a sparse population with a high number of participating radiology units, so that alternative blind double reading strategies must be devised. OBJECTIVE: To evaluate the effect on breast cancer screening performances of two second reading strategies used in non-centralized, low-volume programs. METHODS: Reading performances in two Swiss regional breast cancer screening programs (cantons of Wallis and Vaud), covering female populations, aged 50-69, of about 31'000 and 72'000 inhabitants were computed and compared. Both programs had similar screening regimens and organizations, but differed with respect to second reading. One setting applied a selective strategy whereby only experienced radiologists performed second reading; the other elicited not to restrict second readers on the basis of their individual screening activity. Analysis included some 140,000 mammograms performed between 1999 and 2005. RESULTS: Overall, screening performances improved with increasing total volume of reading, albeit not in a linear fashion. Regardless of setting, radiologists attained a higher level of screening accuracy when performing second rather than first readings, and incident rather than prevalent screening cases. The effect of a selective, small group of second readers appeared to impact favorably on the false-positive rate and other indicators of screening quality. As the learning curve depends on the number of mammograms read, these distinct strategies may bear different outcome in the long run. Implications and practical issues for low-volume programs are discussed.
Mots-clé
Switzerland, Performance indicators, Organized mammography screening, Radiologists, Volume of readings
Création de la notice
26/09/2013 11:53
Dernière modification de la notice
03/03/2018 16:49
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