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Usefulness of Silent MR Angiography for Intracranial Aneurysms Treated with a Flow-Diverter Device

Usefulness of Silent MR Angiography for Intracranial Aneurysms Treated with a Flow-Diverter Device ORIGINAL RESEARCH INTERVENTIONAL Usefulness of Silent MR Angiography for Intracranial Aneurysms Treated with a Flow-Diverter Device X H. Oishi, X T. Fujii, X M. Suzuki, X N. Takano, X K. Teranishi, X K. Yatomi, X T. Kitamura, X M. Yamamoto, X S. Aoki, and X H. Arai ABSTRACT BACKGROUNDANDPURPOSE: Theflow-diverterdevicehasbeenestablishedasatreatmentprocedureforlargeunrupturedintracranial aneurysms. The purpose of this study was to compare the usefulness of Silent MR angiography and time-of-flight MRA to assess the parent artery and the embolization state of the aneurysm after a flow-diverter placement. MATERIALSANDMETHODS: Seventy-eight large, unruptured internal carotid aneurysms in 78 patients were the subjects of this study. After 6 months of treatment, they underwent follow-up digital subtraction angiography, Silent MRA, and TOF-MRA, performed simulta- neously. All images were independently reviewed by 2 neurosurgeons and 1 radiologist and rated on a 4-point scale from 1 (not visible) to 4 (excellent) to evaluate the parent artery. The aneurysmal embolization status was assessed with 2 ratings: complete or incomplete occlusion. RESULTS: ThemeanscoresofSilentMRAandTOF-MRAregardingtheparentarterywere3.180.72and2.310.86,respectively,showing a significantly better score with Silent MRA (P  .01). In the assessment of the embolization of aneurysms on Silent MRA and TOF-MRA compared with DSA, the percentages of agreement were 91.0% and 80.8%, respectively. CONCLUSIONS: Silent http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Usefulness of Silent MR Angiography for Intracranial Aneurysms Treated with a Flow-Diverter Device

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Publisher
American Journal of Neuroradiology
Copyright
© 2019 by American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A6047
Publisher site
See Article on Publisher Site

Abstract

ORIGINAL RESEARCH INTERVENTIONAL Usefulness of Silent MR Angiography for Intracranial Aneurysms Treated with a Flow-Diverter Device X H. Oishi, X T. Fujii, X M. Suzuki, X N. Takano, X K. Teranishi, X K. Yatomi, X T. Kitamura, X M. Yamamoto, X S. Aoki, and X H. Arai ABSTRACT BACKGROUNDANDPURPOSE: Theflow-diverterdevicehasbeenestablishedasatreatmentprocedureforlargeunrupturedintracranial aneurysms. The purpose of this study was to compare the usefulness of Silent MR angiography and time-of-flight MRA to assess the parent artery and the embolization state of the aneurysm after a flow-diverter placement. MATERIALSANDMETHODS: Seventy-eight large, unruptured internal carotid aneurysms in 78 patients were the subjects of this study. After 6 months of treatment, they underwent follow-up digital subtraction angiography, Silent MRA, and TOF-MRA, performed simulta- neously. All images were independently reviewed by 2 neurosurgeons and 1 radiologist and rated on a 4-point scale from 1 (not visible) to 4 (excellent) to evaluate the parent artery. The aneurysmal embolization status was assessed with 2 ratings: complete or incomplete occlusion. RESULTS: ThemeanscoresofSilentMRAandTOF-MRAregardingtheparentarterywere3.180.72and2.310.86,respectively,showing a significantly better score with Silent MRA (P  .01). In the assessment of the embolization of aneurysms on Silent MRA and TOF-MRA compared with DSA, the percentages of agreement were 91.0% and 80.8%, respectively. CONCLUSIONS: Silent

Journal

American Journal of NeuroradiologyAmerican Journal of Neuroradiology

Published: May 1, 2019

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