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Contrast Enhancement of Intracranial Aneurysms on 3T 3D Black-Blood MRI and Its Relationship to Aneurysm Recurrence following Endovascular Treatment

Contrast Enhancement of Intracranial Aneurysms on 3T 3D Black-Blood MRI and Its Relationship to... ORIGINAL RESEARCH INTERVENTIONAL Contrast Enhancement of Intracranial Aneurysms on 3T 3D Black-Blood MRI and Its Relationship to Aneurysm Recurrence following Endovascular Treatment S. Elsheikh, H. Urbach, and S. Meckel ABSTRACT BACKGROUND AND PURPOSE: Endovascular treatment of intracranial aneurysms aims at preventing aneurysm rupture. Contrast- enhanced black-blood MR imaging facilitates imaging of the vessel walls and the aneurysmal sac contents and is therefore suitable for studying the healing process. This study aims to describe imaging findings of aneurysmal contrast enhancement following endo- vascular treatment and its correlation to recurrence and elapsed time since coiling. MATERIALS AND METHODS: Patients undergoing MR imaging follow-up after endovascular treatment of an intracranial aneurysm were included. Contrast-enhanced black-blood T1WI was acquired. Aneurysm wall and intra-aneurysmal enhancement were inde- pendently assessed by 2 neuroradiologists and were related to the time elapsed since coiling and the presence of recurrence. RESULTS: Thirty aneurysms in 30 patients were included. The median time elapsed since treatment was 417 days (interquartile range, 189–1273 days). Aneurysmal contrast enhancement was seen in 24/30 (80%) aneurysms. Enhancement inside the sac in 55% (n ¼ 17), the wall in 23% (n ¼ 7), at the dome (n ¼ 1), or at the base (n ¼ http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Contrast Enhancement of Intracranial Aneurysms on 3T 3D Black-Blood MRI and Its Relationship to Aneurysm Recurrence following Endovascular Treatment

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Publisher
American Journal of Neuroradiology
Copyright
© 2020 by American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A6440
Publisher site
See Article on Publisher Site

Abstract

ORIGINAL RESEARCH INTERVENTIONAL Contrast Enhancement of Intracranial Aneurysms on 3T 3D Black-Blood MRI and Its Relationship to Aneurysm Recurrence following Endovascular Treatment S. Elsheikh, H. Urbach, and S. Meckel ABSTRACT BACKGROUND AND PURPOSE: Endovascular treatment of intracranial aneurysms aims at preventing aneurysm rupture. Contrast- enhanced black-blood MR imaging facilitates imaging of the vessel walls and the aneurysmal sac contents and is therefore suitable for studying the healing process. This study aims to describe imaging findings of aneurysmal contrast enhancement following endo- vascular treatment and its correlation to recurrence and elapsed time since coiling. MATERIALS AND METHODS: Patients undergoing MR imaging follow-up after endovascular treatment of an intracranial aneurysm were included. Contrast-enhanced black-blood T1WI was acquired. Aneurysm wall and intra-aneurysmal enhancement were inde- pendently assessed by 2 neuroradiologists and were related to the time elapsed since coiling and the presence of recurrence. RESULTS: Thirty aneurysms in 30 patients were included. The median time elapsed since treatment was 417 days (interquartile range, 189–1273 days). Aneurysmal contrast enhancement was seen in 24/30 (80%) aneurysms. Enhancement inside the sac in 55% (n ¼ 17), the wall in 23% (n ¼ 7), at the dome (n ¼ 1), or at the base (n ¼

Journal

American Journal of NeuroradiologyAmerican Journal of Neuroradiology

Published: Mar 1, 2020

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