Which study of the brain is most definitive in diagnosing acute infarction?

Diffusion-weighted imaging is the most sensitive and accurate method for stroke detection, and, allied with perfusion-weighted imaging, provides information on the functional status of the ischemic brain.

What is the most sensitive imaging modality to detect acute cerebral ischaemia?

Our study shows that CT and DWI are comparable for detecting and quantifying signs of cerebral ischaemia in acute disabling stroke when they are of good quality and are assessed systemically using ASPECTS. However, this does not imply the two modalities are equivalent.

What is basal ganglia lacunar infarct?

Lacunar infarcts are small infarcts (2–20 mm in diameter) in the deep cerebral white matter, basal ganglia, or pons, presumed to result from the occlusion of a single small perforating artery supplying the subcortical areas of the brain.

Is lacunar infarct curable?

If a lacunar stroke is treated early, full recovery is possible. If medicines restore circulation to the brain quickly, symptoms of a lacunar stroke may go away within hours.

Is MRI better than CT for stroke?

Results of the study show standard MRI is superior to standard CT in detecting acute stroke and particularly acute ischemic stroke. The four readers were unanimous in their agreement on the presence or absence of acute stroke in 80 percent of patients using MRI compared to 58 percent using non-contrast CT.

Can MRI detect previous stroke?

Usually, a silent stroke is discovered unexpectedly on a brain CT or brain MRI. These imaging tests can easily distinguish past strokes from recent strokes.

Which MRI is best for acute stroke?

In the era of multimodal comprehensive imaging in strokes, imaging based on computed tomography (CT) has been preferred for use in acute ischemic stroke, because, despite the unique strengths of magnetic resonance imaging (MRI), MRI has a longer scan duration than does CT-based imaging.

Can MRI without contrast detect stroke?

Most acute events (like acute headache, acute cerebrovascular accident [stroke] or transient ischemic attack, haemorrhages and concussions) do not require a contrast MRI.