Impact of Vascular Supply Variability on the Prognosis of Meningioma Patients: A Retrospective Study based on Territory Arterial Spin Labeling

Motivation: Territorial Arterial Spin Labelling (t-ASL) could be an alternative method to digital subtraction angiography when evaluating feeding arteries, however, blood supply variations on meningioma prognosis remains unclear. Goal(s): To compare the prognosis of meningiomas mainly supplied by the internal carotid artery and external carotid artery and to investigate relevant clinical factors. Approach: T-asl technique; Correlation analysis; Ridge regression analysis. Results: Blood supply has correlations with clinical symptoms and prognosis of meningiomas. Meningiomas involving internal carotid artery supply, and with a high WHO grade may have unfavorable prognosis. Impact: T-ASL shows promise in comparing the prognosis of meningiomas based on blood supply. Dizziness and headache are the distinctive symptoms in meningiomas supplied by ICA and ECA. Additionally, the prognosis may be worse for meningiomas involving ICA supply.