What is the test of choice for ischemic stroke?

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What is the test of choice for ischemic stroke?

In the acute stroke setting, the priority is to quickly distinguish hemorrhage from ischemia so that dangerous treatments like thrombolytics aren’t given when they’re not safe. A noncontrast head CT is the test of choice because it can be performed immediately, is widely available, and rapidly rules out intracranial bleeding, which is the key barrier to thrombolysis. Even though diffusion-weighted MRI is more sensitive for early ischemic changes, it takes longer and is less accessible in many emergency departments, making it less practical as the initial imaging in this scenario. CT angiography, while valuable for mapping vessel occlusion and guiding endovascular therapy, follows noncontrast imaging to confirm there’s no bleed and to assess the overall situation. So the quickest, most reliable first step is noncontrast CT of the head.

In the acute stroke setting, the priority is to quickly distinguish hemorrhage from ischemia so that dangerous treatments like thrombolytics aren’t given when they’re not safe. A noncontrast head CT is the test of choice because it can be performed immediately, is widely available, and rapidly rules out intracranial bleeding, which is the key barrier to thrombolysis. Even though diffusion-weighted MRI is more sensitive for early ischemic changes, it takes longer and is less accessible in many emergency departments, making it less practical as the initial imaging in this scenario. CT angiography, while valuable for mapping vessel occlusion and guiding endovascular therapy, follows noncontrast imaging to confirm there’s no bleed and to assess the overall situation. So the quickest, most reliable first step is noncontrast CT of the head.

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