Cerebral Arteritis: Classification

Ferris, Ernest J.; Levine, Harvey L.

doi:10.1148/109.2.327

Cited by 109 publications

(37 citation statements)

References 36 publications

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“…13 Recently, hyperintense vessels have been described on FLAIR images in hyperacute stroke patients with an arterial occlusion 8,9,14 and are considered to be an indicator of slow flow and inadequate collateral circulation. The results of this case-control study suggest that (1) the assessment of HVS on FLAIR is reproducible, (2) multiple HVS on FLAIR is significantly more frequent in patients with multiple intracerebral stenoses (68%) than in asymptomatic patients without intracerebral stenoses (5.2%) regardless of the presence of a brain infarct, and (3) HVSs on FLAIR underestimate the extent of intracerebral stenoses as demonstrated by angiogram.…”

Section: Discussionmentioning

confidence: 69%

Evaluation of Hyperintense Vessels on FLAIR MRI for the Diagnosis of Multiple Intracerebral Arterial Stenoses

Iancu

Oppenheim

Touzé

et al. 2003

Stroke

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Background and Purpose-Hyperintense vessel sign (HVS) on fluid-attenuated inversion recovery (FLAIR) has been described in hyperacute stroke patients with arterial occlusion. We sought to determine whether HVS was more frequent in patients with intracerebral arterial stenoses than in those without stenosis regardless of the presence of a brain infarct. Methods-In this case-control study (19 symptomatic patients with multiple intracerebral arterial stenoses compared with 19 age-matched asymptomatic patients without stenosis), we looked for HVS (ie, focal or tubular hyperintensities in the subarachnoid space) on FLAIR images. We compared the proportion of HVS-positive patients in the 2 groups and evaluated the concordance between the arterial distribution of stenoses on angiogram and that of HVS on FLAIR. Results-HVS was found in 13 of 19 patients (68%) in the study group and 1 of 19 control patients (5.2%) (PϽ0.0001).The concordance between the territorial distribution of stenoses on angiogram and HVS on FLAIR was higher for the right and left middle cerebral artery (ϭ0.6 and 0.63, respectively) compared with the right and left anterior cerebral artery (ϭ0.35 and 0.2, respectively). HVSs were observed in 1 of 7 patients with posterior cerebral artery stenoses on angiogram. HVSs were seen equally in patients with acute focal (7 of 10) or diffuse (6 of 9) cerebral involvement. In the 6 HVS-positive patients with acute stroke confirmed by MRI, additional HVSs were observed in a different arterial territory than that of the stroke lesion.

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Section: Discussionmentioning

confidence: 69%

Evaluation of Hyperintense Vessels on FLAIR MRI for the Diagnosis of Multiple Intracerebral Arterial Stenoses

Iancu

Oppenheim

Touzé

et al. 2003

Stroke

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“…The 2 primary features of vasculopathy were tabulated separately: 1) diffuse vessel constriction or narrowing, 2) focal vessel irregularity of first-, second-, and third-order branch vessels (focal vasoconstriction, focal vasodilation, and beaded or string-ofbead appearance). 21,22 Diffuse vasoconstriction (narrowing or constriction) was considered present if significant diffuse vessel caliber reduction was observed in 2 or more major branch groups (ACA, MCA, and PCA). We judged focal vessel irregularity using the traditional features of vasospasm and arteritis and graded on a 4-point scale (0, normal; 1, possibly abnormal [mild vessel irregularity]; 2, moderate vessel irregularity; and 3, severe vessel irregularity).…”

Section: Distal Branch Visualization (Pruning)mentioning

confidence: 99%

Catheter Angiography, MR Angiography, and MR Perfusion in Posterior Reversible Encephalopathy Syndrome

Bartynski

Boardman²

2007

AJNR Am J Neuroradiol

242

168

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BACKGROUND AND PURPOSE:The cause of posterior reversible encephalopathy syndrome (PRES) is unknown. Two primary hypotheses exist: 1) hypertension exceeding auto-regulatory limits leading to forced hyper-perfusion and 2) vasoconstriction and hypo-perfusion leading to ischemia with resultant edema. The purpose of this study was to evaluate the catheter angiography (CA), MR angiography (MRA), and MR perfusion (MRP) features in PRES in order to render further insight into its mechanism of origin.

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“…However, the process may begin as vasculitis which then evolves to thrombosis of the vessels or aneurysm formation. 6,10,15) Histological studies demonstrate non-specific vasculitis with mononuclear cells or neutrophilic infiltration, endothelial cell proliferation, destruction of the elastic lamina, fibrinoid necrosis, and thrombus formation. 15,19,29) Vasculitis of the vasa vasorum is generally believed to be responsible for aneurysm or pseudo-aneurysm formation.…”

Section: Discussionmentioning

confidence: 99%

Middle Cerebral Artery Aneurysm Associated With Behcet's Disease-Case Report-

Koçak

Çaylı

Ateş

et al. 2004

Neurol. Med. Chir.(Tokyo)

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A 37-year-old man with Behçet's disease suffered secondary subarachnoid hemorrhage and intracerebral hematoma in the right temporal lobe caused by a ruptured aneurysm of the right middle cerebral artery. The aneurysm was successfully clipped. Aneurysm formation is common in the visceral arteries in Behçet's disease, but extremely rare in the intracranial arteries. Vasculitis may be involved in the etiology of intracranial aneurysms in patients with Behçet's disease.

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Cerebral Arteritis: Classification

Cited by 109 publications

References 36 publications

Evaluation of Hyperintense Vessels on FLAIR MRI for the Diagnosis of Multiple Intracerebral Arterial Stenoses

Evaluation of Hyperintense Vessels on FLAIR MRI for the Diagnosis of Multiple Intracerebral Arterial Stenoses

Catheter Angiography, MR Angiography, and MR Perfusion in Posterior Reversible Encephalopathy Syndrome

Middle Cerebral Artery Aneurysm Associated With Behcet's Disease-Case Report-

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