Suspected Metallic Embolism following Endovascular Treatment of Intracranial Aneurysms

• DOI: 10.3174/ajnr.a4804
• Publication Date: 2016-04-21T22:38:08Z
• Authors: R. Yasuda; M. Maeda; M. Umino; Y. Nakatsuka; Y. Umeda; N. Toma; H. Sakaida; H. Suzuki
• Keywords: Cerebral embolism

We describe a case series of suspected metallic embolism after coil embolization for intracranial aneurysms. Between January 2012 and December 2014, 110 aneurysms had been treated by in our institution. In 6 cases, the postprocedural MR imaging revealed abnormal spotty lesions not detected on preprocedural imaging. The were also undetectable CT scan. They demonstrated as low-intensity spots T1WI, T2WI, DWI, T2*-weighted On they accompanied bright "halo," imaging, showed "blooming" effect. 3 follow-up was available all remained no signal changes. Although histologic examination performed, these neuroradiologic findings strongly supported being from fragments. No specific responsible device reviewing devices used neuroendovascular treatment cases.