Variations in the origin of the thalamoperforating arteries

Uz, Aysun

doi:10.1016/j.jocn.2006.01.047

Cited by 48 publications

(30 citation statements)

References 20 publications

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“…A small study of 15 cadaver brains demonstrated the AOP in 1 specimen. 11 To date, the diagnosis of AOP infarction has been uncommon. Because of the variable presence and size of the P1 segment, which gives rise to the paramedian arteries, the AOP may be an underdiagnosed variant.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8] The paramedian arteries have great variability with respect to number, size, and territorial contribution to the thalamus. 1,2,6,[9][10][11][12][13] Many authors have demonstrated that the paramedian arteries can supply both the paramedian and the anterior thalamic territories, especially when the polar artery is absent. 1,4,6,9,10,[14][15][16][17][18][19] The variable presence of the polar artery (absent in 30%-60% of the population) 7,15,16 is not surprising because it arises from the PcomA, which itself is highly variable and can be absent or hypoplastic.…”

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confidence: 99%

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Artery of Percheron Infarction: Imaging Patterns and Clinical Spectrum

Lazzaro¹,

Wright²,

Castillo³

et al. 2010

AJNR Am J Neuroradiol

301

310

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BACKGROUND AND PURPOSE:Occlusion of the AOP results in a characteristic pattern of ischemia: bilateral paramedian thalamus with or without midbrain involvement. Although the classic imaging findings are often recognized, only a few small case series and isolated cases of AOP infarction have been reported. The purpose of this study was to characterize the complete imaging spectrum of AOP infarction on the basis of a large series of cases obtained from multiple institutions.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Artery of Percheron Infarction: Imaging Patterns and Clinical Spectrum

Lazzaro¹,

Wright²,

Castillo³

et al. 2010

AJNR Am J Neuroradiol

301

310

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“…4,5 Various other series have reported the incidence of AOP infarcts to be 2% of all strokes to 4-18% of thalamic strokes. 6 In a large series of B/L thalamic infarcts by Lazarro et al, the commonest pattern of involvement was paramedian thalamic infarction with rostral midbrain infarct.…”

Section: Discussionmentioning

confidence: 95%

Artery of percheron infarction: case reports and literature review

et al. 2017

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The artery of Percheron is a rare anatomic variant supplying the thalamus and the rostral midbrain. Infarct in this territory results in a wide array of neurological signs and symptoms causing diagnostic dilemma and management issues. We describe the clinical presentations in three cases admitted and evaluated for neurological symptoms and diagnosed as artery of percheron infarct after brain imaging. In one patient, the etiology turned out to be infective while the other two patients had cerebrovascular accident secondary to dilated cardiomyopathy and hyper homcystinimea respectively. Artery of percheron infarction is a rare entity and should be considered in patients with altered sensorium and behavioral manifestations with associated eye abnormalities. MRI brain is the investigation of choice to detect this rare variant of thalamic circulation.

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“…Uz [25] distinguished four different types: Type I has multiple branches on both sides, Type II has multiple branches arising from one side of the P1 segment and one or maximum two branches arising from the other segment, Type III has only one thick artery on each segment and Type IV has multiple branches on one segment and no branches on the other.…”

Section: Discussionmentioning

confidence: 99%

“…The data describing branching patterns was diversified among presented studies. Type III (single stem, bilateral) was the most common in studies presented by Lang and Brunner [10], Pedroza et al [18] and Uz [25].…”

Section: Branching Patternsmentioning

confidence: 99%