易感性加权成像序列在诊断破裂性感染性动脉瘤中的应用。
Utility of Susceptibility-Weighted Angiography Sequence in the Diagnosis of Ruptured Infectious Aneurysms.
机构信息
Department of Radiology, Assistance Publique-Hôpitaux de Paris, Bichat Hospital, Paris, France.
Department of Infectious Diseases, Assistance Publique-Hôpitaux de Paris, Bichat Hospital, Paris, France; INSERM Clinical Investigation Center 007, Paris, France; INSERM U738, Paris, France; BICHAT Hospital, University of Paris, Paris, France.
出版信息
World Neurosurg. 2021 May;149:171-173. doi: 10.1016/j.wneu.2021.02.103. Epub 2021 Mar 1.
In a patient with infective endocarditis (IE), susceptibility-weighted angiography (SWAN) sequence revealed 2 intracranial infectious aneurysms (IIAs) as bright signal lesion, related to the high-velocity arterial flow within the IIAs. In addition, SWAN revealed a convexal subarachnoid hemorrhage-related to distal IIA rupture-as a dark signal. The risk of IIA rupture emphasizes the need for serial imaging follow-up in patients with IE receiving antibiotic therapy after endovascular treatment and after valve surgery. Considering its specific risks, particularly in patients with IE who may be on anticoagulation, digital subtraction angiography is not used routinely in this context. Therefore, SWAN might be an alternative method for selecting patients with IE who need conventional angiography and might be useful for serial follow-up and monitoring after treatment. Future studies should investigate the role of SWAN for the detection of IIAs.
在感染性心内膜炎（IE）患者中，磁敏感加权成像（SWAN）序列显示 2 个颅内感染性动脉瘤（IIA）呈亮信号病变，与 IIA 内高速动脉血流有关。此外，SWAN 显示凸面蛛网膜下腔出血与 IIA 远端破裂相关-呈暗信号。IIA 破裂的风险强调了在接受血管内治疗和瓣膜手术后接受抗生素治疗的 IE 患者中需要进行连续影像学随访。考虑到其特定风险，特别是对于可能正在抗凝治疗的 IE 患者，数字减影血管造影术通常不在这种情况下使用。因此，SWAN 可能是一种替代方法，用于选择需要常规血管造影的 IE 患者，并且可能对治疗后的随访和监测有用。未来的研究应该探讨 SWAN 在检测 IIA 中的作用。
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