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Abstract #4921

The role of glymphatic function and CSF circulation in patients with glioma

Xiaodan Liu1, Angela Jakary1, Oluwaseun Adegbite1, Tracy Luks1, Reza Eghbali1, Villanueva-Meyer Javier1, Susan Chang2, Duan Xu1, and Janine Lupo1
1Radiology and Biomedical imaging, University of California, San Francisco, San Francisco, CA, United States, 2neurological surgery, University of California, San Francisco, San Franciso, CA, United States

Synopsis

Keywords: Neurofluids, Tumor, CSF circulation, glymphatic system, Diffusion tensor imaging analysis along the perivascular space (ALPS)

Motivation: Limited research has been performed on the role of CSF circulation in the glymphatic transport in patients with glioma.

Goal(s): To evaluate the relationship between CSF circulation disturbance and glymphatic dysfunction in different glioma subtypes.

Approach: A novel measure of glymphatic function (ALPS index) was quantified and compared among 100 patients with different genetic subtypes and associated with CSF circulation related factors and tumor volume.

Results: We found that lower ALPS index in the tumor hemisphere was found in IDH-wildtype glioblastomas and with increasing grade in IDH-mutant gliomas. CSF circulation related factors were correlated with disruptions in glymphatic function.

Impact: Our promising results provide a novel insight of glymphatic dysfunction in patients with glioma.

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