Cerebrovascular Anatomy 1

Topic: Anatomy

Created on Friday, August 24 2007 by jdmiles

Last modified on Friday, August 24 2007.

 
        A) MRI diffusion-weighted image of a stroke in the territory of right PCA
 
        B) MRI diffusion-weighted image of a stroke in the territory of left PCA
 
        C) CT of a stroke in the territory of right PCA
 
        D) CT of a stroke in the territory of left PCA
 
        E) MRI diffusion-weighted image of a stroke in the territory of left MCA
 

 

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This question was created on August 24, 2007 by jdmiles.
This question was last modified on August 24, 2007.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) MRI diffusion-weighted image of a stroke in the territory of right PCA

This answer is correct.

This is an MRI diffusion weighted image. The bright area represents diffusion restriction, which can be seen in acute stroke. The area of diffusion restriction corresponds to the right posterior cerebral artery (PCA) territory.  (See References)

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B) MRI diffusion-weighted image of a stroke in the territory of left PCA

This answer is incorrect.

This is an MRI diffusion weighted image. The bright area represents diffusion restriction, which can be seen in acute stroke. The area of diffusion restriction corresponds to the right posterior cerebral artery (PCA) territory. The stroke in this image is on the right, not the left.  (See References)

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C) CT of a stroke in the territory of right PCA

This answer is incorrect.

This is an MRI diffusion weighted image. The bright area represents diffusion restriction, which can be seen in acute stroke. The area of diffusion restriction corresponds to the right posterior cerebral artery (PCA) territory.  (See References)

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D) CT of a stroke in the territory of left PCA

This answer is incorrect.

This is an MRI diffusion weighted image. The bright area represents diffusion restriction, which can be seen in acute stroke. The area of diffusion restriction corresponds to the right posterior cerebral artery (PCA) territory.  (See References)

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E) MRI diffusion-weighted image of a stroke in the territory of left MCA

This answer is incorrect.

This is an MRI diffusion weighted image. The bright area represents diffusion restriction, which can be seen in acute stroke. The area of diffusion restriction corresponds to the right posterior cerebral artery (PCA) territory. The stroke in this image is on the right, not the left.

The middle cerebral artery (MCA) does not supply the territory where this stroke occurred.

  (See References)

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References:

1. Nolte, J. (1993). The Human Brain: An Introduction to Its Functional Anatomy. Mosby, St. Louis.

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anatomy
Cerebrovascular Anatomy 1
Question ID: 082407028
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 08/24/2007
Modified: 08/24/2007
Estimated Permutations: 163800