Rates and Causes of Disagreement in Interpretation of Full-Field Digital Mammography and Film-Screen Mammography in a Diagnostic Setting
Autor: | L. Hansen, N. Kay, Christopher Comstock, A. Coveler, Patricia M Mengoni, Y. T. Adler, Gary Cutter, R E Hendrick, Luz A. Venta, A. M. Scharl, P. DeLeon |
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Rok vydání: | 2001 |
Předmět: |
Adult
medicine.medical_specialty Digital mammography Breast imaging Falso positivo Breast Neoplasms Humans Medicine Mammography Radiology Nuclear Medicine and imaging Medical physics Aged Aged 80 and over Observer Variation medicine.diagnostic_test business.industry X-Ray Film Medical screening Signal Processing Computer-Assisted General Medicine Middle Aged Full field digital mammography Female business Diagnostic Mammography Nuclear medicine |
Zdroj: | American Journal of Roentgenology. 176:1241-1248 |
ISSN: | 1546-3141 0361-803X |
DOI: | 10.2214/ajr.176.5.1761241 |
Popis: | This study was performed to determine the rates and causes of disagreements in interpretation between full-field digital mammography and film-screen mammography in a diagnostic setting.Patients undergoing diagnostic mammography were invited to participate in the digital mammography study. Three views, selected by the radiologist interpreting the film-screen mammography, were obtained in both film-screen mammography and digital mammography. Radiologists independently assigned a Breast Imaging Reporting and Data System (BI-RADS) category to the film-screen mammography and the digital mammography images. The BI-RADS categories were grouped into the general categories of agreement, partial agreement, or disagreement. A third and different radiologist reviewed all cases of disagreement, reached a decision as to management, and determined the primary cause of disagreement.Six radiologists reviewed digital mammography and film-screen mammography diagnostic images in a total of 1147 breasts in 692 patients. Agreement between digital mammography and final film-screen mammography assessment was present in 937 breasts (82%), partial agreement in 159 (14%), and disagreement in 51 (4%), for a kappa value of 0.29. The primary causes of disagreement were differences in management approach of the radiologists (52%), information derived from sonography or additional film-screen mammograms (34%), and technical differences between the two mammographic techniques (10%).Significant disagreement between film-screen mammography and digital mammography affecting follow-up management was present in only 4% of breasts. The most frequent cause of disagreement in interpretation was a difference in management approach between radiologists (interobserver variability). This source of variability was larger than that due to differences in lesion visibility between film-screen mammography and digital mammography. |
Databáze: | OpenAIRE |
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