Conference proceeding
The role of digital tomosynthesis in reducing the number of equivocal breast reportings
Progress in Biomedical Optics and Imaging - Proceedings of SPIE, Vol.9416, pp.94161G-94161G-6
03/17/2015
DOI: 10.1117/12.2081838
Abstract
Purpose To compare radiologists’ confidence in assessing breast cancer using combined digital mammography (DM) and digital breast tomosynthesis (DBT) compared with DM alone as a function of previous experience with DBT. Materials and Methods Institutional ethics approval was obtained. Twenty-three experienced breast radiologists reviewed 50 cases in two modes, DM alone and DM+DBT. Twenty-seven cases presented with breast cancer. Each radiologist was asked to detect breast lesions and give a confidence score of 1-5 (1- Normal, 2- Benign, 3- Equivocal, 4- Suspicious, 5- Malignant). Radiologists were divided into three sub-groups according to their prior experience with DBT (none, workshop experience, and clinical experience). Confidence scores using DM+DBT were compared with DM alone for all readers combined and for each DBT experience subgroup. Statistical analyses, using GraphPad Prism 5, were carried out using the Wilcoxon signed-rank test with statistical significance set at p< 0.05. Results Confidence scores were higher for true positive cancer cases using DM+DBT compared with DM alone for all readers (p < 0.0001). Confidence scores for normal cases were lower (indicating greater confidence in the non-cancer diagnosis) with DM+DBT compared with DM alone for all readers (p= 0.018) and readers with no prior DBT experience (p= 0.035). Conclusion Addition of DBT to DM increases the confidence level of radiologists in scoring cancer and normal/benign cases. This finding appears to apply across radiologists with varying levels of DBT experience, however further work involving greater numbers of radiologists is required.
Details
- Title: Subtitle
- The role of digital tomosynthesis in reducing the number of equivocal breast reportings
- Creators
- Maram Alakhras - The Univ. of Sydney (Australia)Claudia Mello-Thoms - The Univ. of Sydney (Australia)Mary Rickard - The Univ. of Sydney (Australia)Roger Bourne - The Univ. of Sydney (Australia)Patrick C Brennan - The Univ. of Sydney (Australia)
- Contributors
- Claudia R Mello-Thoms (Editor) - The Univ. of Sydney (Australia)Matthew A Kupinski (Editor) - College of Optical Sciences, The Univ. of Arizona (United States)
- Resource Type
- Conference proceeding
- Publication Details
- Progress in Biomedical Optics and Imaging - Proceedings of SPIE, Vol.9416, pp.94161G-94161G-6
- Publisher
- SPIE
- DOI
- 10.1117/12.2081838
- ISSN
- 1605-7422
- Language
- English
- Date published
- 03/17/2015
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology
- Record Identifier
- 9984051751602771
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