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Deep Learning for Noninvasive Assessment of H3 K27M Mutation Status in Diffuse Midline Gliomas Using MR Imaging

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机构: [1]Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China. [2]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China. [3]Department of Medical Imaging Product, Neusoft, Group Ltd., Shenyang, People's Republic of China. [4]BioMind Inc., Beijing, People's Republic of China. [5]Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China. [6]Department of Radiology, West China Hospital of Sichuan University, Chengdu, People's Republic of China. [7]Department of Diagnostic Radiology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China. [8]UCL Institutes of Neurology and Healthcare Engineering, London, UK. [9]Department of Radiology & Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands. [10]Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA. [11]Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. [12]Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. [13]School of Information and Electronics, Beijing Institute of Technology, Beijing, People's Republic of China.
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Determination of H3 K27M mutation in diffuse midline glioma (DMG) is key for prognostic assessment and stratifying patient subgroups for clinical trials. MRI can noninvasively depict morphological and metabolic characteristics of H3 K27M mutant DMG.This study aimed to develop a deep learning (DL) approach to noninvasively predict H3 K27M mutation in DMG using T2-weighted images.Retrospective and prospective.For diffuse midline brain gliomas, 341 patients from Center-1 (27 ± 19 years, 184 males), 42 patients from Center-2 (33 ± 19 years, 27 males) and 35 patients (37 ± 18 years, 24 males). For diffuse spinal cord gliomas, 133 patients from Center-1 (30 ± 15 years, 80 males).5T and 3T, T2-weighted turbo spin echo imaging.Conventional radiological features were independently reviewed by two neuroradiologists. H3 K27M status was determined by histopathological examination. The Dice coefficient was used to evaluate segmentation performance. Classification performance was evaluated using accuracy, sensitivity, specificity, and area under the curve.Pearson's Chi-squared test, Fisher's exact test, two-sample Student's t-test and Mann-Whitney U test. A two-sided P value <0.05 was considered statistically significant.In the testing cohort, Dice coefficients of tumor segmentation using DL were 0.87 for diffuse midline brain and 0.81 for spinal cord gliomas. In the internal prospective testing dataset, the predictive accuracies, sensitivities, and specificities of H3 K27M mutation status were 92.1%, 98.2%, 82.9% in diffuse midline brain gliomas and 85.4%, 88.9%, 82.6% in spinal cord gliomas. Furthermore, this study showed that the performance generalizes to external institutions, with predictive accuracies of 85.7%-90.5%, sensitivities of 90.9%-96.0%, and specificities of 82.4%-83.3%.In this study, an automatic DL framework was developed and validated for accurately predicting H3 K27M mutation using T2-weighted images, which could contribute to the noninvasive determination of H3 K27M status for clinical decision-making.2 Technical Efficacy: Stage 2.© 2023 International Society for Magnetic Resonance in Medicine.

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出版当年[2023]版:
大类 | 2 区 医学
小类 | 2 区 核医学
最新[2023]版:
大类 | 2 区 医学
小类 | 2 区 核医学
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出版当年[2023]版:
Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
最新[2023]版:
Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

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第一作者机构: [1]Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
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通讯机构: [1]Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China. [*1]No. 119, the West Southern 4th Ring Road, Fengtai District, Beijing 100070, China.
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