Importance of Chronological Changes on High-Resolution Vessel Wall Imaging for Diagnosis of Isolated Anterior Cerebral Artery Dissection

2020 ◽  
Vol 29 (10) ◽  
pp. 105146
Author(s):  
Yo Tsuda ◽  
Keita Sakurai ◽  
Yuta Madokoro ◽  
Hiroyasu Inoue ◽  
Hiroyuki Yuasa ◽  
...  
2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Xiao-Dong Zou ◽  
Yiu-Cho Chung ◽  
Lei Zhang ◽  
Ying Han ◽  
Qi Yang ◽  
...  

Purpose. Conventional two-dimensional vessel wall imaging has been used to depict the middle cerebral artery (MCA) wall in patients with recent small subcortical infarctions (RSSIs). However, its clinical use has been limited by restricted spatial coverage, low signal-to-noise ratio (SNR), and long scan time. We used a novel three-dimensional high-resolution MR imaging (3D HR-MRI) technique to investigate the presence, locations, and contrast-enhanced patterns of MCA plaques and their relationship with RSSI.Methods. Nineteen consecutive patients with RSSI but no luminal stenosis on MR angiography were prospectively enrolled. 3D HR-MRI was performed using a T1w-SPACE sequence at 3.0 T. The presence, locations, and contrast-enhanced patterns of the MCA plaques on the ipsilateral and contralateral sides to the RSSI were analyzed.Results. Eighteen patients successfully completed the study. MCA atherosclerotic plaques occurred more frequently on the ipsilateral than the contralateral side to the RSSI (72.2% versus 33.3%,P=0.044). The occurrence of superiorly located plaques was significantly higher on the ipsilateral than the contralateral side of the MCA (66.7% versus 27.8%;P=0.044).Conclusions. Superiorly located plaques are closely associated with RSSI. 3D high-resolution vessel wall imaging may be a potential tool for etiologic assessment of ischemic stroke.


Neurology ◽  
2015 ◽  
Vol 85 (5) ◽  
pp. 481-481 ◽  
Author(s):  
Hongbing Chen ◽  
Zhuhao Li ◽  
Boning Luo ◽  
Jinsheng Zeng

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Anthony Larson ◽  
James P Klaas ◽  
Giuseppe Lanzino ◽  
Vance Lehman

Introduction: High-resolution vessel wall imaging (HR-VWI) of the intracranial vasculature may aid in the diagnosis and management of Moyamoya Disease (MMD). The patterns of HR-VWI findings of the cerebral vasculature of MMD patients remains uncertain, however. We sought to describe HR-VWI findings in a single-center cohort of MMD patients. Methods: Consecutive patients who were evaluated at a Midwest American medical center with a HR-VWI exam were included. Fourteen anterior circulation arterial segments in each patient were analyzed: proximal and distal supraclinoid Internal Carotid Artery, proximal M1 segment of the Middle Cerebral Artery, mid-portion of the M1, distal M1, proximal A1 segment of the Anterior Cerebral Artery and distal A1. Imaging variables that were collected from each segment included the presence of wall thickening (concentric vs eccentric), degree and pattern (concentric or eccentric) of contrast enhancement, and presence of positive or negative vessel remodeling. The total number and percentage of vessel segments demonstrating these characteristics were calculated. The number and percentage of patients with at least one segment demonstrating these characteristics were calculated. Results: Thirty-six patients (32 females, 88.9%) with a diagnosis of MMD were included. Overall, 221 of 504 segments (43.8%) demonstrated negative remodeling in 29 (75%) patients. Ninety-eight segments (19.4%) demonstrated wall enhancement (71 concentric, 27 eccentric; 22 high grade, 76 low grade) in 32 (88.9%) patients. Eighty-seven segments (17.3%) demonstrated wall thickening (52 concentric, 35 eccentric) in 32 patients (88.9%). Conclusions: Negative remodeling was the most-commonly observed vessel wall abnormality in all segments analyzed. However, a high percentage of patients had at least one segment demonstrating wall enhancement, wall thickening and negative remodeling. Continued study is necessary to further elucidate the HR-VWI patterns of the cerebral arterial system in MMD patients.


2021 ◽  
Vol 25 ◽  
pp. 101170
Author(s):  
Mohd Fandi Al Khafiz Kamis ◽  
Mohd Naim Mohd Yaakob ◽  
Ezamin Abdul Rahim ◽  
Ahmad Sobri Muda ◽  
Mohamad Syafeeq Faeez Md Noh

2013 ◽  
Vol 36 (3) ◽  
pp. 243-244 ◽  
Author(s):  
Masahiro Uemura ◽  
Yasuhisa Akaiwa ◽  
Masafumi Toriyabe ◽  
Takuya Mashima ◽  
Kenshi Terajima ◽  
...  

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