Stroke imaging: practice question

A Radiology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Radiology · Stroke imaging

Sample item

A patient presents with acute focal deficit. Noncontrast CT excludes hemorrhage, and CT angiography shows a proximal middle cerebral artery occlusion. What additional CT technique can estimate infarct core and salvageable penumbra in selected cases?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. CT perfusion

CT perfusion assesses cerebral blood-flow and volume parameters and can help estimate core infarct and hypoperfused tissue in selected acute stroke pathways. Imaging selection follows local stroke protocol.

Option by option

  • A. CT colonography

    CT colonography evaluates the large bowel.

  • B. CT perfusion (correct)

    Correct. Perfusion maps support assessment of potentially salvageable tissue.

  • C. DEXA

    DEXA measures bone mineral density.

  • D. High-resolution CT temporal bone

    Temporal-bone CT evaluates osseous ear structures.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is B, CT perfusion. CT perfusion assesses cerebral blood-flow and volume parameters and can help estimate core infarct and hypoperfused tissue in selected acute stroke pathways.

Why is "CT colonography" not the answer?

CT colonography evaluates the large bowel.

Why is "DEXA" not the answer?

DEXA measures bone mineral density.

Why is "High-resolution CT temporal bone" not the answer?

Temporal-bone CT evaluates osseous ear structures.

What concept does this question test?

It tests Stroke imaging in Radiology. Imaging selection follows local stroke protocol.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Stroke imaging?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.