Determining the rupture source is imperative in patient with aneurysmal subarachnoid hemorrhage (SAH). About one third of SAH cases with multiple intracranial aneurysms cannot be certain of the rupture source according to the hemorrhage pattern. This study aims to identify of the rupture source in patients with multiple intracranial aneurysms by fusing SAH data and computed tomography angiography (CTA) data. This retrospective study included 52 aneurysmal SAH patients with multiple intracranial aneurysms. In the 52 patients, 36 had definitive hemorrhage patterns on computed tomography imaging. And the other 16 patients had non-definitive hemorrhage patterns, which were bewildered for us to determine the ruptured aneurysms. Fusion of SAH data and CTA data was performed to demonstrate the spatial relationship between the SAH with each aneurysm by using the 3D Slicer software. For the patients with definitive bleed patterns, all of the suspected ruptured aneurysms were confirmed to be accurate according to the surgical records. Interestingly, the suspected rupture sources were correct in 14 of 16 patients with non-definitive hemorrhage patterns. For all 52 patients with multiple intracranial aneurysms, the ruptured aneurysms were identified in 50 cases (96.2%). In conclusion, fusion of SAH data and CTA data can precisely demonstrate the spatial relationship between the SAH with each aneurysm, which is helpful to determine the ruptured aneurysm in patients with multiple intracranial aneurysms.

对于患有动脉瘤性蛛网膜下腔出血（SAH）的患者，必须确定破裂源。根据出血方式，约有三分之一的SAH多发颅内动脉瘤病例不能确定破裂源。本研究旨在通过融合SAH数据和CT血管造影（CTA）数据来确定多发颅内动脉瘤患者的破裂源。这项回顾性研究包括52例多发颅内动脉瘤的SAH患者。在52例患者中，有36例在计算机断层扫描成像中有明确的出血类型。另外16例患者有非确定性出血模式，这让我们感到困惑，无法确定破裂的动脉瘤。通过使用3D Slicer软件对SAH数据和CTA数据进行融合，以证明SAH与每个动脉瘤之间的空间关系。对于具有确定性出血模式的患者，根据手术记录，所有可疑破裂的动脉瘤均被证实是准确的。有趣的是，在16例非确定性出血型患者中，有14例疑似破裂源是正确的。对于所有52例多发颅内动脉瘤患者，其中50例（96.2％）被确定为破裂性动脉瘤。总之，融合SAH数据和CTA数据可以准确地显示SAH与每个动脉瘤之间的空间关系，这有助于确定多发颅内动脉瘤患者的破裂动脉瘤。根据手术记录，所有疑似破裂的动脉瘤均被证实是准确的。有趣的是，在16例非确定性出血类型的患者中，有14例疑似破裂源是正确的。对于所有52例多发颅内动脉瘤患者，其中50例（96.2％）被确定为破裂性动脉瘤。总之，融合SAH数据和CTA数据可以准确地显示SAH与每个动脉瘤之间的空间关系，这有助于确定多发颅内动脉瘤患者的动脉瘤破裂。根据手术记录，所有疑似破裂的动脉瘤均被证实是准确的。有趣的是，在16例非确定性出血型患者中，有14例疑似破裂源是正确的。对于所有52例多发颅内动脉瘤患者，其中50例（96.2％）被确定为破裂性动脉瘤。总之，融合SAH数据和CTA数据可以准确地显示SAH与每个动脉瘤之间的空间关系，这有助于确定多发颅内动脉瘤患者的动脉瘤破裂。50例（96.2％）被发现破裂的动脉瘤。总之，融合SAH数据和CTA数据可以准确地显示SAH与每个动脉瘤之间的空间关系，这有助于确定多发颅内动脉瘤患者的破裂动脉瘤。50例（96.2％）被发现破裂的动脉瘤。总之，融合SAH数据和CTA数据可以准确地显示SAH与每个动脉瘤之间的空间关系，这有助于确定多发颅内动脉瘤患者的破裂动脉瘤。