MRI features and prognostic evaluation in patients with subventricular zone-contacting IDH-wild-type glioblastoma
Article Category: research article
Published Online: May 30, 2025
Received: Jan 06, 2025
Accepted: Mar 27, 2025
DOI: https://doi.org/10.2478/raon-2025-0029
Keywords
© 2025 Shijiao Pan et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Background
The subventricular zone (SVZ), the brain’s largest neural stem cells reservoir, plays a critical role in glioblastoma development and progression. This study aims to investigate the association between MRI features and SVZ contact in IDH-wild-type glioblastoma, as well as their prognostic significance to guide personalized diagnosis and treatment.
Patients and methods
We retrospectively analyzed the MRI and clinical data of 371 patients with IDH-wild-type glioblastoma from The Cancer Imaging Archive. Tumors were classified into SVZ contact and non-contact group based on the spatial relationships between contrast-enhanced lesions and the SVZ on T1C imaging. Group differences were analyzed, and survival outcomes were assessed using Cox regression and Kaplan-Meier analyses.
Results
SVZ contact was observed in 64.4% of patients, these patients exhibited significantly shorter overall survival (OS) compared to the SVZ non-contact group (11.0
Conclusions
SVZ contact is an independent prognostic factor for OS in IDH-wild-type glioblastoma, they exhibit larger tumor size, higher rates of crossing the midline, and multifocality. Prognostic differences among SVZ contact regions warrant further investigation to explore the role of their distinct microenvironments.