颅内脑膜瘤是一类多样的肿瘤，根据级别、基因组成、位置和血管分布而异。深入了解颅底脑膜瘤（SBMs）和非颅底脑膜瘤（NSBMs）的供血情况将进一步为切除策略提供信息。我们旨在通过肿瘤位置来描绘一系列颅内脑膜瘤的血管供应。在三级转诊中心进行了一项回顾性研究，该研究对术前数字减影血管造影术进行了颅内脑膜瘤的研究。收集了患者、肿瘤、放射学和治疗数据，并建立了回归模型。符合纳入标准的患者共165例。平均年龄为57.1岁（标准差：12.6）。平均肿瘤直径为4.9厘米（标准差：1.5）。其中，126例为WHO一级，37例为二级，2例为三级。通过Al-Mefty的解剖学标志进行了动脉供血分析。颅底脑膜瘤更有可能从前循环获得动脉供血，而非颅底脑膜瘤则由颈外动脉分支供血。与颅底脑膜瘤相比，非颅底脑膜瘤更大（5.61厘米 vs 4.45厘米，P = <.001），更常伴有癫痫发作（20% vs 8%，P = .03），更高级别（P = <.001），更常见伴有肿瘤周围脑水肿（84.6% vs 66%，P = .04）并有更多双侧供血血管（47.7% vs 28%，P = .01）。供血动脉更多与较低肿瘤级别显著相关（P = .023，OR = 0.59）。较高肿瘤级别（二级/三级）与较少供血动脉相关（P = .017，RR = 0.74）。脑膜瘤的位置与特定的血管供应模式、级别和患者结局相关。这些信息表明，一级肿瘤，尤其是较大肿瘤，更有可能具有多样的血管供应模式，包括颈内动脉分支。该研究可能为术前栓塞治疗和外科手术提供参考，特别是对于大颅底肿瘤而言。版权所有 © 2023年神经外科医生国际会议。保留所有权利。

Intracranial meningiomas are a diverse group of tumors, which vary by grade, genetic composition, location, and vasculature. Expanding the understanding of the supply of skull base (SBMs) and non-skull base meningiomas (NSBMs) will serve to further inform resection strategies. We sought to delineate the vascular supply of a series of intracranial meningiomas by tumor location.A retrospective study of intracranial meningiomas that were studied using preoperative digital subtraction angiograms before surgical resection at a tertiary referral center was performed. Patient, tumor, radiologic, and treatment data were collected, and regression models were developed.One hundred sixty-five patients met inclusion criteria. The mean age was 57.1 years (SD: 12.6). The mean tumor diameter was 4.9 cm (SD: 1.5). One hundred twenty-six were World Health Organization Grade I, 37 Grade II, and 2 Grade III. Arterial feeders were tabulated by Al-Mefty's anatomic designations. SBMs were more likely to derive arterial supply from the anterior circulation, whereas NSBMs were supplied by external carotid branches. NSBMs were larger (5.61 cm vs 4.45 cm, P = <.001), were more often presented with seizure (20% vs 8%, P = .03), were higher grade (P = <.001) had more frequent peritumoral brain edema (84.6% vs 66%, P = .04), and had more bilateral feeders (47.7% vs 28%, P = .01) compared with SBMs. More arterial feeders were significantly associated with lower tumor grade (P = .023, OR = 0.59). Higher tumor grade (Grade II/III) was associated with fewer arterial feeders (P = .017, RR = 0.74).Meningioma location is associated with specific vascular supply patterns, grade, and patient outcomes. This information suggests that grade I tumors, especially larger tumors, are more likely to have diverse vascular supply patterns, including internal carotid branches. This study may inform preoperative embolization and surgical considerations, particularly for large skull base tumors.Copyright © Congress of Neurological Surgeons 2023. All rights reserved.