Abstract
Decision support systems have been used to promote the practice of evidence-based medicine. Computer-assisted diagnosis can serve as one element of evidence-based radiology. One area where such tools may provide benefit is analysis of vertebral compression fractures (VCFs), which can be a challenge in MRI interpretation. VCFs may be benign or malignant in etiology, and several MRI features may help to make this important distinction. We describe a web-based decision support system for discriminating benign from malignant VCFs as a prototype for a more general diagnostic decision support framework for radiologists. The system has three components: a feature checklist with an image gallery derived from proven reference cases, a prediction model, and a reporting mechanism. The website allows users to input the findings for a case to be interpreted using a structured feature checklist. The image gallery complements the checklist, for clarity and training purposes. The input from the checklist is then used to calculate the likelihood of malignancy by a logistic regression prediction model. Standardized report text is generated that summarizes pertinent positive and negative findings. This computer-assisted diagnosis system demonstrates the integration of three areas where diagnostic decision support can aid radiologists: first, in image interpretation, through feature checklists and illustrative image galleries; second, in feature-based prediction modeling; and third, in structured reporting. We present a diagnostic decision support tool that provides radiologists with evidence-based guidance for discriminating benign from malignant VCF. This model may be useful in other difficult-diagnosis situations and requires further clinical testing.
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Acknowledgements
The authors thank Dr. Ramin Khorasani, Dr. Francis Cook, Dr. Lucila Ohno-Machado, and Dr. Patrick Jeanmenne for their assistance. JAC acknowledges prior General Electric Radiology Research Academic Fellowship (GERRAF) support. KCW acknowledges the support of RSNA Research and Education Foundation Fellowship Training Grant #FT0904, as well as the support of the Walter and Mary Ciceric Research Award.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s10278-011-9359-0
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Wang, K.C., Jeanmenne, A., Weber, G.M. et al. An Online Evidence-Based Decision Support System for Distinguishing Benign from Malignant Vertebral Compression Fractures by Magnetic Resonance Imaging Feature Analysis. J Digit Imaging 24, 507–515 (2011). https://doi.org/10.1007/s10278-010-9316-3
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DOI: https://doi.org/10.1007/s10278-010-9316-3