Evaluation of basilar artery atherosclerotic plaque distribution by 3D MR vessel wall imaging

2016 ◽  
Vol 44 (6) ◽  
pp. 1592-1599 ◽  
Author(s):  
Zhensen Chen ◽  
Ao-Fei Liu ◽  
Huijun Chen ◽  
Chun Yuan ◽  
Le He ◽  
...  
2020 ◽  
Author(s):  
Jae W. Song ◽  
Sahily Reyes‐Esteves ◽  
Brett L. Cucchiara

2015 ◽  
Vol 10 (3) ◽  
pp. E31-E31 ◽  
Author(s):  
Mervyn D. I. Vergouwen ◽  
Jeroen Hendrikse ◽  
Anja G. van der Kolk ◽  
Marieke J. H. Wermer ◽  
Maarten J. Versluis ◽  
...  

2019 ◽  
Vol 28 (7) ◽  
pp. 851-855 ◽  
Author(s):  
Lei Liu ◽  
Xue-Bin Zhang ◽  
Shuo Lu ◽  
Zun-Jing Liu ◽  
Xian-Jin Zhu

The association between fenestrations and neurovascular pathology is not well defined. The morphology of vessel wall plays an important role in the development of neurovascular pathology. We sought to explore the plaque distribution around basilar artery fenestration (BAF) by three-dimensional high-resolution MR vessel wall imaging (3D HRMRI). Patients with BAF on 3D HRMRI images were enrolled. All cross-sectional slices of basilar arteries were assessed and categorized based on the location of fenestration as proximal segment, in-bifurcation segment, and distal segment. Furthermore, plaques in the in-bifurcation segment were classified according to their orientation being centered on the lateral, interior, dorsal, or ventral wall of the vessel. In all, 12 cases with BAF involving 661 cross-sectional image slices in entire basilar arteries were included. Plaques were found in 190 image slices, with the distribution of 41 slices in the proximal segment, 144 slices in the in-bifurcation segment and 67 slices in the distal segment. Plaques were found more frequently in the proximal and in-bifurcation segments than in the distal segment ( P < 0.001), but there was no statistical difference between the proximal and in-bifurcation segment ( P = 0.11). In the in-bifurcation segment, plaques were more frequently located at the lateral (50.0%) than other interior (16.0%), dorsal (21.0%), and ventral (13.0%) wall ( P < 0.001).Plaques of BAF tend to locate in the proximal and in-bifurcation segments, especially at the lateral wall of the in-bifurcation segment.


2020 ◽  
pp. 32-34
Author(s):  
Matheus Kahakura Franco Pedro ◽  
Paulo Sérgio Faro Santos ◽  
Bruno Augusto Telles

Reversible Cerebral Vasoconstriction Syndrome (RCVS) is a clinical and radiological syndrome that is primarily defined by thunderclap headache, with or without further neurological deficits, and segmental intracranial vasoconstriction that resolves within three months. The current nomenclature was only established in 2007, but it has been known with diferent names for over fifty years. The pathophysiology, while still not completely understood, seems to point towards a disease based on abnormalities of vascular tonus without structural inflammation. It is clear, however, that patients with RCVS often have triggers, especially drugs or other vasoactive substances. Distinguishing this entity from others, especially subarachnoid hemorrhage and arterialdissection, is extremely important, given the particular prognosis and need of immediate treatment of each disease. The preferred imaging method has long been the angiography; however, new magnetic resonance imaging (MRI) such as vessel wall imaging have allowed for non-invasivediagnosis and follow-up. The authors report a case in which MRI was used in a patient with basilar artery RCVS and present a literature review.


2020 ◽  
Vol 78 (10) ◽  
pp. 642-650
Author(s):  
Felipe Torres PACHECO ◽  
Luiz Celso Hygino da CRUZ JUNIOR ◽  
Igor Gomes PADILHA ◽  
Renato Hoffmann NUNES ◽  
Antônio Carlos Martins MAIA JUNIOR ◽  
...  

ABSTRACT Intracranial vessel wall imaging plays an increasing role in diagnosing intracranial vascular diseases. With the growing demand and subsequent increased use of this technique in clinical practice, radiologists and neurologists should be aware of the choices in imaging parameters and how they affect image quality, clinical indications, methods of assessment, and limitations in the interpretation of these images. Due to the improvement of the MRI techniques, the possibility of accurate and direct evaluation of the abnormalities in the arterial vascular wall (vessel wall imaging) has evolved, adding substantial data to diagnosis when compared to the indirect evaluation based on conventional flow analyses. Herein, the authors proposed a comprehensive approach of this technique reinforcing appropriated clinical settings to better use intracranial vessel wall imaging.


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