scholarly journals Carotid Intraplaque-Hemorrhage Volume and Its Association with Cerebrovascular Events

2019 ◽  
Author(s):  
L. Saba ◽  
G. Micheletti ◽  
W. Brinjikji ◽  
P. Garofalo ◽  
R. Montisci ◽  
...  
Keyword(s):  
Intraplaque Hemorrhage ◽  
Cerebrovascular Events ◽  
Hemorrhage Volume

scholarly journals Semiautomatic carotid intraplaque hemorrhage volume measurement using 3D carotid MRI

2019 ◽  
Vol 50 (4) ◽  
pp. 1055-1062 ◽  
Author(s):  
Jin Liu ◽  
Jie Sun ◽  
Niranjan Balu ◽  
Marina S. Ferguson ◽  
Jinnan Wang ◽  
...  
Keyword(s):  
Volume Measurement ◽  
Intraplaque Hemorrhage ◽  
Carotid Mri ◽  
Hemorrhage Volume

Asymptomatic moderate carotid artery stenosis with intraplaque hemorrhage: onset of new ischemic stroke

2014 ◽  
Vol 8 (2) ◽  
pp. 130-134 ◽  
Author(s):  
Kiyofumi Yamada ◽  
Masanori Kawasaki ◽  
Shinichi Yoshimura ◽  
Yuichi Sasaki ◽  
Shigehiro Nakahara ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Artery Stenosis ◽  
Neurological Deficits ◽  
Intraplaque Hemorrhage ◽  
Severe Stenosis ◽  
First Case ◽  
Cerebrovascular Events

BackgroundThe degree of stenosis of carotid arteries is recognized as an important risk factor for ischemic stroke. However, high-grade stenosis does not always cause cerebrovascular events, whereas low- to moderate-grade stenosis may often cause strokes. It has been reported that there is an association between carotid intraplaque hemorrhage (IPH) and new brain ischemic events.Case presentationWe present three patients with asymptomatic moderate carotid artery stenosis and carotid IPH who underwent both neurological and MRI at baseline and after at least 1 year's follow-up. These patients were admitted to our hospital (after 15–35 months of follow-up) because of neurological deficits. Diffusion-weighted MRI of the brain showed ipsilateral new ischemic lesions due to carotid artery plaques. The patients were treated with carotid artery stenting and discharged uneventfully.ConclusionsWhether plaques with severe stenosis already had severe stenosis at the onset of events or plaques with moderate stenosis progressed owing to an acute change, such as growth of an IPH, remains unclear, because no carotid imaging was carried out just before the events. This is the first case report which presents neurological symptoms and MRI at both baseline and follow-up in patients with asymptomatic moderate carotid artery stenosis and carotid IPH.

Carotid Plaques From Symptomatic Patients With Mild Stenosis Is Associated With Intraplaque Hemorrhage

Hypertension ◽  
2021 ◽  
Author(s):  
Valentina Nardi ◽  
John Benson ◽  
Melanie C. Bois ◽  
Luca Saba ◽  
Anthony S. Larson ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Continuous Variable ◽  
Interquartile Range ◽  
Artery Stenosis ◽  
Intraplaque Hemorrhage ◽  
Plaque Vulnerability ◽  
Carotid Plaques ◽  
Mild Stenosis ◽  
Cerebrovascular Events

Carotid plaque vulnerability features beyond the degree of stenosis may play a key role in the pathogenesis and recurrence of ischemic cerebrovascular events. This study sought to compare intraplaque hemorrhage (IPH) as a marker of plaque vulnerability in symptomatic patients with mild (<50%), moderate (50%–69%), and severe (≥70%) carotid artery stenosis. We included patients who experienced ischemic cerebrovascular events with no other identifiable sources and underwent carotid endarterectomy for mild (n=32), moderate (n=47), and severe (n=58) carotid artery stenosis. The degree of stenosis and imaging hallmarks were assessed by computed tomography angiography or magnetic resonance angiography. Plaque specimens were stained with hematoxylin and eosin and Movat pentachrome staining. Carotid plaques of patients with mild stenosis had a higher extent of IPH (%) on tissue analysis compared with patients with moderate (mild, 15.7% [interquartile range, 7.8%–26.7%]; moderate, 3.9% [0.0%–9.2%]; P <0.001) and severe carotid artery stenosis (mild, 15.7% [interquartile range, 7.8%–26.7%]; severe, 2.5% [interquartile range, 0.0%–11.2%]; P <0.001). When considering the degree of carotid artery stenosis as a continuous variable, a lower lumen narrowing was associated with higher extent of IPH ( P <0.001; R, −0.329). Our major finding is the association of IPH with mild carotid artery stenosis based on histological analysis. The current study may suggest that IPH potentially plays a role in the mechanism of stroke in patients with nonobstructive carotid stenosis.

Dynamic change of carotid intraplaque hemorrhage volume in subjects with mild carotid stenosis

2018 ◽  
Vol 105 ◽  
pp. 15-19 ◽  
Author(s):  
Sangheon Kim ◽  
Hyo Sung Kwak ◽  
Seung Bae Hwang ◽  
Gyung-Ho Chung
Keyword(s):  
Carotid Stenosis ◽  
Dynamic Change ◽  
Intraplaque Hemorrhage ◽  
Hemorrhage Volume

Time-resolved, contrast-enhanced 3D MR angiography in the subclavian steal effect

VASA ◽  
2010 ◽  
Vol 39 (1) ◽  
pp. 85-93 ◽  
Author(s):  
Schubert
Keyword(s):  
Mr Angiography ◽  
Time Resolved ◽  
Time To Peak ◽  
Vertebral Arteries ◽  
Subclavian Steal ◽  
Cerebrovascular Events ◽  
Graphic Analysis ◽  
Contrast Enhanced ◽  
Hemodynamic Information ◽  
Supraaortic Vessels

The subclavian steal effect indicates atherosclerotic disease of the supraaortic vessels but rarely causes cerebrovascular events in itself. Noninvasive imaging providing detailed anatomic as well as hemodynamic information would therefore be desirable. From a group of 25 consecutive patients referred for MR angiography, four with absent or highly attenuated signal in one of the vertebral arteries on 3D multislab time-of-flight MR angiography were selected to undergo 3D time-resolved contrast-enhanced MR angiography. The time-resolved 3D contrast series (source images and MIPs) were evaluated visually and by graphic analysis of time-intensity curves derived from the respective V1 and V3 segments of both vertebral arteries on the source images. In two cases with high-grade proximal left subclavian stenosis, time-resolved 3D ce-MRA was able to visualise retrograde contrast filling of the left VA. There was a marked delay in time-to-peak between the left and right V1 segments in one case and a shallower slope of enhancement in another. In the other two cases, there was complete or collateralised segmental occlusion of the VAs.

MRI-plaqueimaging detects carotid plaques with a high risk for future cerebrovascular events

2009 ◽  
Vol 36 (S 02) ◽  
Author(s):  
L Esposito ◽  
S Sadikovic ◽  
R Feurer ◽  
D Sepp ◽  
C Winkler ◽  
...  
Keyword(s):  
High Risk ◽  
Carotid Plaques ◽  
Cerebrovascular Events

Assessment of quality of life in patients with the effects of transient ischemic stroke

2016 ◽  
pp. 37-39
Author(s):  
A. Babirad
Keyword(s):  
Quality Of Life ◽  
Ischemic Stroke ◽  
Large Scale ◽  
Cerebrovascular Diseases ◽  
Control Measures ◽  
Sociological Research ◽  
Cerebrovascular Events ◽  
Sf 36 ◽  
Angioplasty And Stenting

Cerebrovascular diseases are a problem of the world today, and according to the forecast, the problem of the near future arises. The main risk factors for the development of ischemic disorders of the cerebral circulation include oblique and aging, arterial hypertension, smoking, diabetes mellitus and heart disease. An effective strategy for the prevention of cerebrovascular events is based on the implementation of large-scale risk control measures, including the use of antiagregant and anticoagulant therapy, invasive interventions such as atheromectomy, angioplasty and stenting. In this connection, the efforts of neurologists, cardiologists, angiosurgery, endocrinologists and other specialists are the basis for achieving an acceptable clinical outcome. A review of the SF-36 method for assessing the quality of life in patients with the effects of transient ischemic stroke is presented. The assessment of quality of life is recognized in world medical practice and research, an indicator that is also used to assess the quality of the health system and in general sociological research.

Controlling Hypertension and Stroke Prevention – From Guideline to Clinical Practice

2011 ◽  
Vol 3 (1) ◽  
pp. 30
Author(s):  
Anding Xu ◽  
Zefeng Tan ◽  
◽  
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Clinical Trials ◽  
Clinical Practice ◽  
Stroke Prevention ◽  
Modifiable Risk Factors ◽  
Cerebrovascular Events

Hypertension is the most important of the prevalent and modifiable risk factors for stroke. Based on evidence, blood pressure (BP) lowering is recommended in guidelines for the prevention of stroke. However, there are still some uncertainties in the guidelines for controlling BP and preventing stroke in patients with previous cerebrovascular events, such as the goal BP, who to treat and which class of BP-lowering drugs to use. This article discusses these questions by reviewing guidelines and corresponding clinical trials, with the aim of reducing the gap between guidelines and clinical practice.

Chronic Mechanical Circulatory Support for Patients with End-stage Heart Failure as a Definitive Treatment Option

2010 ◽  
Vol 6 (4) ◽  
pp. 22
Author(s):  
Patrycja Ganslmeier ◽  
Christof Schmid ◽  
◽  
Keyword(s):  
Heart Failure ◽  
Mechanical Circulatory Support ◽  
Definitive Treatment ◽  
Circulatory Support ◽  
Randomized Evaluation ◽  
Fda Approval ◽  
Cerebrovascular Events ◽  
Device Placement ◽  
End Stage Heart Failure ◽  
End Stage

Mechanical circulatory support for end-stage heart failure has become routine and is now increasingly used as definitive treatment. Several small devices qualify for this purpose, but only a few have gained US Food and Drug Administration (FDA) approval as yet. Several studies, including the Randomized Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure (REMATCH) study, the Investigation of Non-transplant-Eligible Patients Who Are Inotrope Dependent (INTrEPID) and the HeartMate (HM) II trial have confirmed a significantly improved quality of life and functional capacity after device placement. However, cerebrovascular events, infection and device malfunction still pose a considerable risk to patients and hinder widespread use.

Clinical Implications of the SYNTAX Study

2009 ◽  
Vol 4 (1) ◽  
pp. 48 ◽  
Author(s):  
Patrick Serruys ◽  
Scot Garg ◽  
◽  
Keyword(s):  
Percutaneous Coronary Intervention ◽  
De Novo ◽  
Artery Bypass ◽  
Bypass Graft ◽  
Coronary Intervention ◽  
Syntax Score ◽  
Cerebrovascular Events ◽  
Percutaneous Coronary ◽  
Syntax Study ◽  
Better Than

Recent years have seen an ongoing debate as to whether coronary artery bypass graft (CABG) surgery or percutaneous coronary intervention (PCI) is the most appropriate revascularisation strategy for patients with coronary heart disease (CAD). The Synergy between Percutaneous Coronary Intervention with TAXUS and Cardiac Surgery (SYNTAX) study was conducted with the intention of defining the specific roles of each therapy in the management of de novo three-vessel disease or left main CAD. Interim results after 12 months show that PCI leads to significantly higher rates of major adverse cardiac or cerebrovascular events compared with CABG (17.8 versus 12.4; p=0.002), largely owing to increased rates of repeat revascularisation. However, CABG was much more likely to lead to stroke. Interestingly, categorisation of patients by severity of CAD complexity according to the SYNTAX score has shown that there are certain patients in whom PCI can yield results that are comparable to, if not better than, those achieved with CABG. Careful clinical evaluation and comprehensive assessment of CAD severity, alongside application of the SYNTAX score, can aid practitioners in selecting the most suitable therapy for each individual CAD patient.

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