scholarly journals Comparison of Carotid Atherosclerotic Plaque Characteristics by High-Resolution Black-Blood MR Imaging between Patients with First-Time and Recurrent Acute Ischemic Stroke

2012 ◽  
Vol 33 (7) ◽  
pp. 1257-1261 ◽  
Author(s):  
X.S. Liu ◽  
H.L. Zhao ◽  
Y. Cao ◽  
Q. Lu ◽  
J.R. Xu
Keyword(s):  
Ischemic Stroke ◽  
High Resolution ◽  
Mr Imaging ◽  
Acute Ischemic Stroke ◽  
Atherosclerotic Plaque ◽  
Black Blood ◽  
Carotid Atherosclerotic Plaque ◽  
First Time

Carotid Atherosclerotic Plaque Features in Patients with Acute Ischemic Stroke

2018 ◽  
Vol 112 ◽  
pp. e223-e228 ◽  
Author(s):  
Runming Sun ◽  
Lixia Wang ◽  
Cuiling Guan ◽  
Wenyuan Cao ◽  
Bing Tian
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Atherosclerotic Plaque ◽  
Carotid Atherosclerotic Plaque

scholarly journals Comparison of Carotid Atherosclerotic Plaque Characteristics between Symptomatic Patients with Transient Ischemic Attack and Stroke using Multi-Contrast Magnetic Resonance Imaging

2021 ◽  
Author(s):  
Mingming Lu ◽  
Lichen Zhang ◽  
Fei Yuan ◽  
Peng Peng ◽  
Hongtao Zhang ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Atherosclerotic Plaque ◽  
Transient Ischemic Attack ◽  
Carotid Arteries ◽  
Carotid Atherosclerotic Plaque ◽  
Stroke Patients ◽  
Ischemic Attack ◽  
Ischemic Events

Abstract Purpose:This study aimed to compare the characteristics of carotid plaques between patients with transient ischemic attack (TIA) and ischemic stroke using magnetic resonance (MR) imaging.Methods：Symptomatic patients with carotid atherosclerotic plaque who had a recent ischemic stroke or TIA were recruited and underwent carotid MR imaging. The characteristics of plaque morphology and compositions including intraplaque hemorrhage (IPH), lipid-rich necrotic-core (LRNC) and calcification were compared between TIA and stroke patients. Logistic regression was performed to relate the plaque characteristics to the types of ischemic events.Results:A total of 270 patients with TIA or ischemic stroke were recruited. Stroke patients had significantly higher prevalence of diabetes (42.2% vs. 28.2%, p=0.021), greater mean wall area (35.1 ± 10.1 mm2 vs. 32.0 ± 7.7mm2, p = 0.004), mean wall thickness (1.3 ± 0.2 mm vs. 1.2 ± 0.2 mm, p=0.001), maximum normalized wall index (NWI)(63.9% ± 6.0% vs. 62.2% ± 5.9%, p=0.023)and %volume of LRNC(9.7%± 8.2% vs. 7.4% ±7.9%, p=0.025)in carotid arteries compared to those with TIA. After adjusted for clinical factors, above characteristics of carotid arteries were significantly associated with the type of ischemic events. After further adjusting for maximum NWI, the association of %volume of LRNC and stroke subtype remained statistically significant (OR, 1.41; CI, 1.01-1.96; p=0.041).Conclusions:Ischemic stroke patients had larger plaque burden and greater proportion of LRNC in symptomatic carotid plaques compared to patients with TIA. This study suggests that ischemic stroke patients had more vulnerable plaques compared to those with TIA.

Techniques for high-resolution MR imaging of atherosclerotic plaque

1994 ◽  
Vol 4 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Chun Yuan ◽  
Jay S. Tsuruda ◽  
Kirk N. Beach ◽  
Cecil E. Hayes ◽  
Marina S. Ferguson ◽  
...  
Keyword(s):  
High Resolution ◽  
Mr Imaging ◽  
Atherosclerotic Plaque

Stand alone mechanical thrombectomy (with penumbra system) for acute ischemic stroke based on MR imaging: Single center experience

2012 ◽  
Vol 60 (4) ◽  
pp. 406
Author(s):  
Manish Shrivastava ◽  
Darshana Sanghvi ◽  
Shirish Hastak ◽  
Sourabh Lahoti ◽  
Annu Aggarwal
Keyword(s):  
Ischemic Stroke ◽  
Mr Imaging ◽  
Acute Ischemic Stroke ◽  
Mechanical Thrombectomy ◽  
Single Center ◽  
Single Center Experience

High-Performance Upconversion Nanoprobes for Multimodal MR Imaging of Acute Ischemic Stroke

Small ◽  
2016 ◽  
Vol 12 (26) ◽  
pp. 3591-3600 ◽  
Author(s):  
Jing Wang ◽  
Hua Zhang ◽  
Dalong Ni ◽  
Wenpei Fan ◽  
Jianxun Qu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Mr Imaging ◽  
Acute Ischemic Stroke ◽  
High Performance

Abstract WP39: Mechanical Embolectomy for Acute Ischemic Stroke Beyond Six Hours From Symptom Onset Using Advanced MR Imaging

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Ryan McTaggart ◽  
Shadi Yaghi ◽  
Daniel C Sacchetti ◽  
Richard Haas ◽  
Shawna Cutting ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Mr Imaging ◽  
Acute Ischemic Stroke ◽  
Large Vessel ◽  
Lesion Volume ◽  
Large Artery ◽  
Large Vessel Occlusion ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Good Outcome

Background: There is very limited data on the use of advanced neuroimaging to select patients with acute ischemic stroke and large vessel occlusion for intraarterial therapy beyond 6 hours from onset. Our aim is to report the outcome of patients with acute ischemic stroke and large artery occlusion who presented beyond 6 hours from onset, had favorable MRI imaging profile, and underwent mechanical embolectomy. Methods: This is a single institution retrospective study between December 1st, 2015, and July 30 th , 2016 with acute ischemic stroke and anterior circulation large vessel occlusion (LVO) with ASPECTS of 6 or more and beyond 6 hours from symptoms onset. Favorable imaging profile was defined as 1) DWI lesion volume (as defined as apparent diffusion coefficient < 620 X 10-6 mm2/s) of 70 mL or less AND 2) Penumbra volume (as defined by volume of tissue with Tmax >6 sec) of 15 mL or greater AND 3) A mismatch ratio of 1.8 or more AND 4) Volume of tissue with perfusion lesion with Tmax > 10 sec is less than 100 mL. Good outcome was defined as a 90 day mRS≤2. Results: In the study period, 41 patients met the inclusion criteria; 22 (53.6%) had favorable imaging profile and underwent mechanical embolectomy. The median age was 75 years (59-92), 68.2% were females; the median time from last known normal to groin puncture was 684.5 minutes (range 363-1628) and the median admission NIHSS score was 17.5 (range 4-28). The rate of good outcomes in this series was similar to that in a patient level pooled meta-analysis of the recent endovascular trials (68.2% vs. 46.0%, p=0.07). The rate of good outcome matches that of the EXTEND-IA trial that selected patients using perfusion imaging (68.2% vs. 71.0%, p = 1.00). None of the patients in our cohort had symptomatic intracereberal hemorrhage. Conclusion: Advanced MR imaging may help select patients with acute ischemic stroke and anterior circulation large vessel occlusion for embolectomy beyond the treatment window used in most endovascular trials.

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