Artery of Percheron

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Artery of Percheron is a branch of

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[A] Anterior cerebral artery
[B] Middle cerebral artery
[C] Posterior cerebral artery
[D] Basilar artery

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Artery of Percheron arises from which part of the posterior cerebral artery?

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[A] P1
[B] P2
[C] P3
[D] P4

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Artery of Percheron Obstruction involves infarction of the

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[A] Thalamus and Hypo-thalamus
[B] Ipsilateral thalamus
[C] Contralateral thalamus
[D] Bilateral thalamus

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French neurologist Gerard Percheron described four variants of perforator supply of the thalamus and the rostral midbrain. Which variant encompasses the artery of Percheron?

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[A] I
[B] II A
[C] II B
[D] III

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Artery of Percheron infarction

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Most prevalent artery of Percheron infarction patterns are

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• Bilateral paramedian thalamic with midbrain infarction (43%)
• Bilateral paramedian thalamic alone without midbrain involvement (38%)
• Bilateral paramedian thalamic infarction with anterior thalamic and midbrain involvement (38%)
• It’s a type of posterior flow infarction.

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Preferred imaging modalities for prompt diagnosis of artery of Percheron infarction are diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR)

The investigations of choice for prompt diagnosis of artery of Percheron infarction are MRI diffusion-weighted imaging (DWI) and FLAIR MRI sequences.

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