Neuroimaging: aneurysm detection: 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 · Neuroimaging: aneurysm detection

Sample item

After a confirmed subarachnoid haemorrhage, which non-invasive test is generally used first to identify a ruptured berry aneurysm?

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

The answer and the reasoning

A. CT angiography

CT angiography has high sensitivity for aneurysms above 3 mm and is quick, so it is the first test. Digital subtraction angiography remains the gold standard for difficult cases, and allows endovascular coiling. The anterior communicating artery is the commonest site.

Option by option

  • A. CT angiography (correct)

    Correct. CTA is the first-line non-invasive test.

  • B. Ultrasound through the temporal window only

    Transcranial Doppler assesses vasospasm and not aneurysm detection.

  • C. Plain skull radiograph

    A skull film does not show vessels.

  • D. Bone scan

    A bone scan evaluates the skeleton.

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 A, CT angiography. CT angiography has high sensitivity for aneurysms above 3 mm and is quick, so it is the first test.

Why is "Ultrasound through the temporal window only" not the answer?

Transcranial Doppler assesses vasospasm and not aneurysm detection.

Why is "Plain skull radiograph" not the answer?

A skull film does not show vessels.

Why is "Bone scan" not the answer?

A bone scan evaluates the skeleton.

What concept does this question test?

It tests Neuroimaging: aneurysm detection in Radiology. Digital subtraction angiography remains the gold standard for difficult cases, and allows endovascular coiling. The anterior communicating artery is the commonest site.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. 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 Neuroimaging: aneurysm detection?

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.