MR angiography (MRA) primarily detects:

MR angiography (MRA) primarily detects:

• A. Uses CT to image vessels
• B. Provides detailed view of vessels and detects occlusion or stenosis
• C. Only visualizes skull bones
• D. Requires invasive catheterization

Answer: (B)

MR angiography uses magnetic resonance to visualize blood vessels and assess blood flow. It delivers a detailed view of the vessel lumens, allowing you to detect narrowing (stenosis) or blockages (occlusion) that are critical in stroke evaluation and guiding treatment decisions. This focus on the vasculature distinguishes it from CT-based techniques, which image with computed tomography and iodinated contrast rather than MRI. MRA is noninvasive compared with catheter-based angiography, though contrast-enhanced options can improve detail if needed. While it can also image veins and arteries, bones are not the primary target of MRA, which is why the option describing visualization of skull bones is not appropriate. Overall, the key strength of MRA is its ability to provide a clear, noninvasive map of the vessels and their patency, identifying occlusions or stenoses that impact stroke management.

MR angiography uses magnetic resonance to visualize blood vessels and assess blood flow. It delivers a detailed view of the vessel lumens, allowing you to detect narrowing (stenosis) or blockages (occlusion) that are critical in stroke evaluation and guiding treatment decisions. This focus on the vasculature distinguishes it from CT-based techniques, which image with computed tomography and iodinated contrast rather than MRI. MRA is noninvasive compared with catheter-based angiography, though contrast-enhanced options can improve detail if needed. While it can also image veins and arteries, bones are not the primary target of MRA, which is why the option describing visualization of skull bones is not appropriate. Overall, the key strength of MRA is its ability to provide a clear, noninvasive map of the vessels and their patency, identifying occlusions or stenoses that impact stroke management.