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T2-FLAIR, DWI and DKI radiomics satisfactorily predicts histological grade and Ki-67 proliferation index in gliomas

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单位: [1]Sun Yat Sen Univ, Canc Ctr, Dept Med Imaging, Guangzhou 510060, Peoples R China [2]State Key Lab Oncol South China, Guangzhou 510060, Peoples R China [3]Collaborat Innovat Ctr Canc Med, Guangzhou 510060, Peoples R China [4]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Radiol, 1095 Jiefang Ave, Wuhan 430030, Hubei, Peoples R China
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关键词: Magnetic resonance imaging diffusion kurtosis imaging radiomics glioma stratification

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Objective: To build highly predictive performance models for glioma stratification with radiomics features from non-invasive MRI. Methods: T2-weighted fluid-attenuated inversion recovery (T2-FLAIR) imaging, diffusion-weighted MRI and diffusion kurtosis imaging were retrospectively collected for 139 glioma cases (2 with grade I, 67 with grade II, 36 with grade III and 34 with grade IV disease). Multi-parameter maps, including the apparent diffusion coefficient (ADC), mean diffusion coefficient (Dmean), fractional anisotropy (FA), and mean kurtosis (MK), were co-registered to T2-FLAIR, and 431 radiomics features for each were extracted within manually segmented tumour regions. Partial correlation analysis revealed correlations between radiomics features and glioma stratification factors (tumour grades and Ki-67 LI). Predictive models were built with adjusted-imbalanced logistic regression. Results: MK radiomics features were more closely correlated with glioma stratification than other modalities analysed. The maximum R in MK was 0.52 for tumour grade and 0.56 for Ki-67 index (compared with 0.36 and 0.34 in FA, and 0.43 and 0.37 in ADC, and 0.48 and 0.42 in T2-FLAIR). The best predictive models for grade II vs. III, grade II vs. IV, low-grade vs. high-grade gliomas and positive vs. highly positive Ki-67 LI were obtained by combining multi-parameter MR radiomics features with AUCs of 0.858, 0.966, 0.853 and 0.870, respectively. However, for grade III vs. IV gliomas, the model obtained from MK radiomics features achieved the highest AUC (0.947), with excellent sensitivity and specificity. Conclusion: Compared with the other modalities, MK showed closer correlations with tumour grade and Ki-67 LI. Combined radiomics models integrating multi-parameter MRI allow for the generation of highly predictive models for glioma stratification.

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出版当年[2020]版:
大类 | 3 区 医学
小类 | 3 区 医学:研究与实验 3 区 肿瘤学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 医学:研究与实验 4 区 肿瘤学
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出版当年[2019]版:
Q2 MEDICINE, RESEARCH & EXPERIMENTAL Q2 ONCOLOGY
最新[2023]版:
Q3 MEDICINE, RESEARCH & EXPERIMENTAL Q4 ONCOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2019版] 出版当年五年平均 出版前一年[2018版] 出版后一年[2020版]

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第一作者单位: [1]Sun Yat Sen Univ, Canc Ctr, Dept Med Imaging, Guangzhou 510060, Peoples R China [2]State Key Lab Oncol South China, Guangzhou 510060, Peoples R China [3]Collaborat Innovat Ctr Canc Med, Guangzhou 510060, Peoples R China
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