Journal of Neuroendovascular Therapy
Online ISSN : 2186-2494
Print ISSN : 1882-4072
Original Articles
Evaluation of Plaque Protrusion Following Carotid Artery Stenting Using 3D-rotational Angiography
Kazuki WakabayashiOsamu MasuoDaisuke IzawaTakumi KawaguchiRie YakoTadasumi NishiokuNaoyuki Nakao
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ジャーナル オープンアクセス

2018 年 12 巻 5 号 p. 228-234

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Objective: Plaque protrusion is one of the current problems with carotid artery stenting (CAS) for carotid artery stenosis, and it may induce delayed postprocedural cerebral infarction. In this study, we evaluate the possibility of using three-dimensional rotational angiography (3DRA) to examine the stent lumen during CAS.

Methods: First, as a basic experiment, we determined the optimal contrast medium concentration for 3DRA. We then studied the presence or absence of plaque protrusion in 43 patients who underwent CAS at our hospital using 3DRA, intravascular ultrasound (IVUS), or DSA.

Results: Optimal contrast medium concentration was determined to be 50% by the basic experiment. In clinical evaluation, plaque protrusion was detected in 12 patients (27.9%) by 3DRA, compared to 7 (16.2%) by IVUS and in 3 (6.9%) by DSA. In patients where plague protrusion was undetected by 3DRA, it was also undetected by IVUS and DSA after CAS.

Conclusion: 3DRA appears to be useful for in-stent plaque protrusion detection.

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