Abstract #2196

Assessment of Apparent Internal Carotid Tandem Occlusion on High-resolution Vessel Wall Imaging Comparison With DSA

shengting chai^1,2, Shuang Xia^1,2, Zhiguo Sheng³, Weiwei Xie^1,2, Chen Wang³, Song Liu^1,2, Ruowei Tang^1,2, Chen Cao⁴, Wenqiang Xin⁵, Zaiyu Guo⁶, Peng Mi ⁷, Binge Chang³, and Xinyu Yang⁵

¹Department of Radiology, Tianjin First Central Hospital, Tianjin, China, ²Department of Radiology, First Central Clinical College, Tianjin, China, ³Department of Neurosurgery, Tianjin First Central Hospital, Tianjin, China, ⁴Department of Radiology, Tianjin Huanhu Hospital, Tianjin, China, ⁵Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China, ⁶Department of Neurosurgery, Tianjin TEDA Hospital, Tianjin, China, ⁷Department of Data statistics, Beijing Hithink Pharmaceutical Technology Service Co.,Ltd, Beijing, China

This study aimed to identify the true ICA tandem occlusions and screen suitability for endovascular recanalization using High-resolution vessel wall imaging (HR-VWI). Patients without blood flow signal in the ICA on MRA who underwent both HR-VWI and DSA was included, and classified into the 4 categories. The suitability for recanalization of occlusion vessels was evaluated. The study showed that about half of patients with an apparent tandem ICA occlusion on DSA, the arteries were, in fact, patent or focal occlusion on VWI. VWI would enable superior identification the true ICA tandem occlusion than DSA.

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