Usefulness of three-dimensional fast imaging employing steady-state acquisition MRI of large vessel occlusion for detecting occluded middle cerebral artery and internal carotid artery before acute mechanical thrombectomy

Sato Kimitoshi; Hijikata Yasukazu; Omura Naoki; Miki Takanori; Kakita Hiroto; Yoshida Takashi; Shimizu Fuminori

doi:10.7461/jcen.2021.E2020.10.007

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저자정보: Sato Kimitoshi (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan) Hijikata Yasukazu (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan) Omura Naoki (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan) Miki Takanori (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan) Kakita Hiroto (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan) Yoshida Takashi (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan) Shimizu Fuminori (Department of Neurosurgery Seijinkai Shimizu Hospital Kyoto Japan)

저널정보: 대한뇌혈관외과학회 Journal of Cerebrovascular and Endovascular Neurosurgery Journal of Cerebrovascular and Endovascular Neurosurgery Vol.23 No.3

발행연도: 2021.9

수록면: 201 - 209 (9page)

DOI: 10.7461/jcen.2021.E2020.10.007

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Objective Acute mechanical thrombectomy (AMT) in patients with acute ischemic stroke from large vessel occlusion (LVO) is performed without directly identifying the occluded vessels. In this study, we evaluated whether 1.5 T magnetic resonance imaging (MRI) with 3D-fast imaging employing steady-state acquisition (FIESTA) could visualize the occluded intracranial middle cerebral artery (MCA) and internal carotid artery (ICA) before AMT. Methods This retrospective study included 21 consecutive patients who underwent time-of-flight magnetic resonance angiography (TOF MRA) and 3D-FIESTA MRI immediately before AMT. The patients also underwent TOF MRA after AMT and achieved TICI 2b or 3 by AMT at our hospital between February 2018 and April 2019. When LVO in the anterior circulation was detected by TOF MRA, 3D-FIESTA MRI was additionally performed. Then, the occluded intracranial MCA and ICA, including their branches, were constructed on the workstation with volume rendering. The obtained images were fused with the TOF MRA images to create combined 3D images. Results The length and top-to-bottom distance of the affected M1 segment (calculated by the ipsilateral-to-contralateral ratio) were 1.29 and 1.17, respectively, on 3D-FIESTA MRI before AMT and 1.34 and 1.24, respectively, on TOF MRA after AMT. We assessed the number of M2 segments branching from the affected M1/M2 junction and visualized the affected anterior temporal artery. The 3D-FIESTA MRI before AMT and TOF MRA after AMT were consistent in all patients, except for two who moved vigorously during imaging. Conclusions Images acquired by 1.5T 3D-FIESTA MRI can visualize to predict the existing path of the occluded MCA and ICA before AMT in patients with LVO of the anterior circulation.

#FIESTA #MRI #Large vessel occlusion #Mechanical thrombectomy

참고문헌 (28)

참고문헌 신청

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