دورية أكاديمية
أعرض في EDS

Mammographic system performance using an image reading qualification method.

التفاصيل البيبلوغرافية
العنوان: Mammographic system performance using an image reading qualification method.
المؤلفون: Pires SR; Departamento de Informática em Saúde, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Botucatu, 862 (térreo), Vila Clementino, São Paulo, SP CEP 04023-062, Brazil. srpires@unifesp.br, Medeiros RB
المصدر: Radiological physics and technology [Radiol Phys Technol] 2012 Jul; Vol. 5 (2), pp. 213-21. Date of Electronic Publication: 2012 May 01.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Springer Japan Country of Publication: Japan NLM ID: 101467995 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1865-0341 (Electronic) Linking ISSN: 18650333 NLM ISO Abbreviation: Radiol Phys Technol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Tokyo : Springer Japan
مواضيع طبية MeSH: Mammography/*methods, Calcinosis/diagnostic imaging ; Phantoms, Imaging
مستخلص: Our goal was to evaluate mammography systems based on microcalcifications and fiber detection using a statistical phantom (ALVIM, model TRM 18-209, Nuclear Associates) image readings. ALVIM phantom images were acquired under diverse exposure conditions with various equipments, and 5 radiologists with similar expertise reported their findings. The reading performance in the detection of microcalcifications and fibers of different sizes was measured by simulation of equivalent breast tissue with 4.5 and 6.5 cm thicknesses. We determined kappa values, ROC curves, and kappa probability density and detection rates with dedicated software developed locally. The statistical results generated three kappa (K) ranges that allowed quantification of the detection performance at three quality levels: unacceptable (K ≤ 0.64), achievable (K ≥ 0.70) and acceptable (0.64 < K < 0.70). An extensive database permitted a comparison of the reading performance with 99.5% reliability (p < 0.005). The comparison showed a larger dispersion of the kappa values for the images with low contrast generated with mammography equipment which was not properly calibrated, showing that the method is able to detect the performance changes associated with the loss of image quality.
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تواريخ الأحداث: Date Created: 20120502 Date Completed: 20121127 Latest Revision: 20211021
رمز التحديث: 20240628
DOI: 10.1007/s12194-012-0156-3
PMID: 22547266
قاعدة البيانات: MEDLINE
الوصف
تدمد:1865-0341
DOI:10.1007/s12194-012-0156-3