Evaluation of Occluded Distal Vessels with Variable Flip-Angle 3-Dimensional Turbo Spin-Echo Magnetic Resonance Imaging Before Acute Mechanical Thrombectomy
Evaluation of Occluded Distal Vessels with Variable Flip-Angle 3-Dimensional Turbo Spin-Echo Magnetic Resonance Imaging Before Acute Mechanical Thrombectomy
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DOI：
10.1016/j.wneu.2022.08.085
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发表时间：
2022-09-13
影响因子：
2
通讯作者：
Yoshimoto, Yuhei
中科院分区：
文献类型：
--
作者：
Aihara, Masanori;Shimizu, Tatsuya;Yoshimoto, Yuhei
目的：本研究的目的是在急性大血管闭塞（LVO）的机械血栓切除术（MT）前，使用非造影剂磁共振成像（MRI）评价闭塞远端血管的病程。方法：对2021年4月至2022年3月期间有MT指征的急性LVO患者，采用可变翻转角三维快速自旋回波（VRFA-3D-TSE）方法对闭塞血管远端走行进行检查，评价闭塞血管远端走行。我们包括颈内动脉（伊卡）闭塞、大脑中动脉M1闭塞和基底动脉（BA）闭塞。再通后或随访磁共振血管造影的血管造影结果进行了比较，术前图像和结果进行了评估，由2血管内治疗专家为优秀，良好，或差imaging.RESULTS：MT进行了共27例。17例患者发生伊卡、M1和BA颅内闭塞。6例患者的颅内伊卡、7例患者的M1和4例患者的BA闭塞。所有患者均行VRFA-3D-TSE MRI检查，17例中优12例，良3例，差0例。结论：在急性LVO患者中，VRFA-3D-TSE MRI能够在不使用造影剂的情况下快速、良好地显示MT前闭塞远端血管的病程。
OBJECTIVE: The aim of this study was to evaluate the course of occluded distal vessels before mechanical throm-bectomy (MT) for acute large vessel occlusion (LVO) with non -contrast magnetic resonance imaging (MRI). The variable flip-angle three-dimensional turbo spin-echo (VRFA-3D-TSE) method was used to evaluate the course of occluded distal vessels quickly and clearly in acute LVO cases before MT.METHODS: Patients with acute LVO who were indicated for MT between April 2021 and March 2022 were examined by the VRFA-3D-TSE method to evaluate the distal course of occluded vessels. We included internal carotid artery (ICA) occlusion, M1 occlusion of the middle cerebral artery, and basilar artery (BA) occlusion. Preoperative images were compared to the angiographic findings after recanalization or with follow-up magnetic resonance angiography, and the results were assessed by 2 endovascular treatment specialists as excellent, good, or poor imaging.RESULTS: MT was performed in a total of 27 patients. There were 17 patients with intracranial occlusion of the ICA, M1, and BA. Occlusion was found in the intracranial ICA in 6 patients, the M1 in 7, and the BA in 4. VRFA-3D-TSE MRI was performed in all patients, and the imaging was rated (by the 2assessors) as excellent in 12 of 17 and 14 of 17 cases, good in 5 of 17 and 3 of 17 cases, and poor in 0 of 17 cases.CONCLUSIONS: In patients with acute LVO, VRFA-3D-TSE MRI enabled rapid and good depiction of the course of occluded distal vessels before MT without the use of contrast medium.