Journal article
An investigation into the mammographic appearances of missed breast cancers when recall rates are reduced
British journal of radiology, Vol.90(1076), pp.20170048-20170048
08/2017
DOI: 10.1259/bjr.20170048
PMCID: PMC5603949
PMID: 28621548
Abstract
This study investigated whether certain mammographic appearances of breast cancer are missed when radiologists read at lower recall rates.
5 radiologists read 1 identical test set of 200 mammographic (180 normal cases and 20 abnormal cases) 3 times and were requested to adhere to 3 different recall rate conditions: free recall, 15% and 10%. The radiologists were asked to mark the locations of suspicious lesions and provide a confidence rating for each decision. An independent expert radiologist identified the various types of cancers in the test set, including the presence of calcifications and the lesion location, including specific mammographic density.
Radiologists demonstrated lower sensitivity and receiver operating characteristic area under the curve for non-specific density/asymmetric density (H = 6.27, p = 0.04 and H = 7.35, p = 0.03, respectively) and mixed features (H = 9.97, p = 0.01 and H = 6.50, p = 0.04, respectively) when reading at 15% and 10% recall rates. No significant change was observed on cancer characterized with stellate masses (H = 3.43, p = 0.18 and H = 1.23, p = 0.54, respectively) and architectural distortion (H = 0.00, p = 1.00 and H = 2.00, p = 0.37, respectively). Across all recall conditions, stellate masses were likely to be recalled (90.0%), whereas non-specific densities were likely to be missed (45.6%).
Cancers with a stellate mass were more easily detected and were more likely to continue to be recalled, even at lower recall rates. Cancers with non-specific density and mixed features were most likely to be missed at reduced recall rates. Advances in knowledge: Internationally, recall rates vary within screening mammography programs considerably, with a range between 1% and 15%, and very little is known about the type of breast cancer appearances found when radiologists interpret screening mammograms at these various recall rates. Therefore, understanding the lesion types and the mammographic appearances of breast cancers that are affected by readers' recall decisions should be investigated.
Details
- Title: Subtitle
- An investigation into the mammographic appearances of missed breast cancers when recall rates are reduced
- Creators
- Norhashimah Mohd Norsuddin - 2 Diagnostic Imaging and Radiotherapy Programme, Faculty of Health Sciences, National University of Malaysia (UKM), Kuala Lumpur, MalaysiaClaudia Mello-Thoms - 1 Medical Image Optimisation and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney, Sydney, NSW, AustraliaWarren Reed - 1 Medical Image Optimisation and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney, Sydney, NSW, AustraliaMary Rickard - 3 Sydney Breast Clinic, Sydney, NSW, AustraliaSarah Lewis - 1 Medical Image Optimisation and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney, Sydney, NSW, Australia
- Resource Type
- Journal article
- Publication Details
- British journal of radiology, Vol.90(1076), pp.20170048-20170048
- DOI
- 10.1259/bjr.20170048
- PMID
- 28621548
- PMCID
- PMC5603949
- NLM abbreviation
- Br J Radiol
- ISSN
- 0007-1285
- eISSN
- 1748-880X
- Publisher
- England
- Language
- English
- Date published
- 08/2017
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology
- Record Identifier
- 9984051518802771
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