A Deep Learning–Based Approach to Reduce Rescan and Recall Rates in Clinical MRI Examinations
Autor: | A. Sreekumari, U. Patil, J. Khinda, Desmond T.B. Yeo, Julie G. Pilitsis, John D. Port, T. Foo, Ailish Coblentz, Alexandre Boutet, J. Polzin, Anish Kapadia, Ileana Hancu, Dattesh Dayanand Shanbhag |
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Rok vydání: | 2019 |
Předmět: |
Male
Test series Neuroimaging 030218 nuclear medicine & medical imaging 03 medical and health sciences Deep Learning 0302 clinical medicine Text mining Motion artifacts Image Interpretation Computer-Assisted Humans Medicine Radiology Nuclear Medicine and imaging Recall business.industry Adult Brain Deep learning Brain Magnetic Resonance Imaging Mr imaging Female Neurology (clinical) Artificial intelligence Recall rate Artifacts business Nuclear medicine 030217 neurology & neurosurgery Automated method |
Zdroj: | AJNR Am J Neuroradiol |
ISSN: | 1936-959X 0195-6108 |
Popis: | BACKGROUND AND PURPOSE: MR imaging rescans and recalls can create large hospital revenue loss. The purpose of this study was to develop a fast, automated method for assessing rescan need in motion-corrupted brain series. MATERIALS AND METHODS: A deep learning–based approach was developed, outputting a probability for a series to be clinically useful. Comparison of this per-series probability with a threshold, which can depend on scan indication and reading radiologist, determines whether a series needs to be rescanned. The deep learning classification performance was compared with that of 4 technologists and 5 radiologists in 49 test series with low and moderate motion artifacts. These series were assumed to be scanned for 2 scan indications: screening for multiple sclerosis and stroke. RESULTS: The image-quality rating was found to be scan indication– and reading radiologist–dependent. Of the 49 test datasets, technologists created a mean ratio of rescans/recalls of (4.7 ± 5.1)/(9.5 ± 6.8) for MS and (8.6 ± 7.7)/(1.6 ± 1.9) for stroke. With thresholds adapted for scan indication and reading radiologist, deep learning created a rescan/recall ratio of (7.3 ± 2.2)/(3.2 ± 2.5) for MS, and (3.6 ± 1.5)/(2.8 ± 1.6) for stroke. Due to the large variability in the technologists9 assessments, it was only the decrease in the recall rate for MS, for which the deep learning algorithm was trained, that was statistically significant (P = .03). CONCLUSIONS: Fast, automated deep learning–based image-quality rating can decrease rescan and recall rates, while rendering them technologist-independent. It was estimated that decreasing rescans and recalls from the technologists9 values to the values of deep learning could save hospitals $24,000/scanner/year. |
Databáze: | OpenAIRE |
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