Content area
Abstract
Purpose
An accurate assessment of the World Health Organization grade is vital for patients with pediatric gliomas to direct treatment planning. We aim to evaluate the diagnostic performance of whole-tumor histogram analysis of diffusion-weighted imaging (DWI) and dynamic susceptibility contrast-enhanced perfusion-weighted imaging (DSC-PWI) for differentiating pediatric high-grade gliomas from pediatric low-grade gliomas.
Methods
Sixty-eight pediatric patients (mean age, 10.47 ± 4.37 years; 42 boys) with histologically confirmed gliomas underwent preoperative MR examination. The conventional MRI features and whole-tumor histogram features extracted from apparent diffusion coefficient (ADC) and cerebral blood volume (CBV) maps were analyzed, respectively. Receiver operating characteristic curves and the binary logistic regression analysis were performed to determine the diagnostic performance of parameters.
Results
For conventional MRI features, location, hemorrhage and tumor margin showed significant difference between pediatric high- and low-grade gliomas (all, P < .05). For advanced MRI parameters, ten histogram features of ADC and CBV showed significant differences between pediatric high- and low-grade gliomas (all, P < .05). The diagnostic performance of the combination of DSC-PWI and DWI (AUC = 0.976, sensitivity = 100%, NPV = 100%) is superior to conventional MRI or DWI model, respectively (AUCcMRI = 0.700, AUCDWI = 0.830; both, P < .05).
Conclusion
The whole-tumor histogram analysis of DWI and DSC-PWI is a promising method for grading pediatric gliomas.
Details
1 The First Affiliated Hospital of Fujian Medical University, Department of Radiology, Fuzhou, China (GRID:grid.412683.a) (ISNI:0000 0004 1758 0400)
2 The First Affiliated Hospital of Fujian Medical University, Department of Radiology, Fuzhou, China (GRID:grid.412683.a) (ISNI:0000 0004 1758 0400); the First Affiliated Hospital, Fujian Medical University, Department of Radiology, Fujian Key Laboratory of Precision Medicine for Cancer, Fuzhou, China (GRID:grid.412683.a) (ISNI:0000 0004 1758 0400); National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Department of Radiology, Fuzhou, China (GRID:grid.256112.3) (ISNI:0000 0004 1797 9307)





