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.
基金:
National Program of the Ministry of Science and Technology of China during the "12th Five-Year Plan" [2011BAI08B10]; National Natural Science Foundation of China [81171308, 81570462, 81730049]
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
通讯作者:
推荐引用方式(GB/T 7714):
Su Changliang,Chen Xiaowei,Liu Chenxia,et al.T2-FLAIR, DWI and DKI radiomics satisfactorily predicts histological grade and Ki-67 proliferation index in gliomas[J].AMERICAN JOURNAL OF TRANSLATIONAL RESEARCH.2021,13(8):9182-9194.
APA:
Su, Changliang,Chen, Xiaowei,Liu, Chenxia,Li, Shihui,Jiang, Jingjing...&Zhang, Shun.(2021).T2-FLAIR, DWI and DKI radiomics satisfactorily predicts histological grade and Ki-67 proliferation index in gliomas.AMERICAN JOURNAL OF TRANSLATIONAL RESEARCH,13,(8)
MLA:
Su, Changliang,et al."T2-FLAIR, DWI and DKI radiomics satisfactorily predicts histological grade and Ki-67 proliferation index in gliomas".AMERICAN JOURNAL OF TRANSLATIONAL RESEARCH 13..8(2021):9182-9194