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10 cze 2014 · A 6-minute multimodal MR protocol with good diagnostic quality is feasible for the evaluation of patients with acute ischemic stroke and can result in significant reduction in scan time rivaling that of the multimodal computed tomographic protocol.
24 wrz 2009 · MR diffusion-weighted imaging (DWI) is the most sensitive and specific technique available for demonstrating acute infarction within minutes after its occurrence, 14 and this can be combined with MR perfusion (MRP) to differentiate viable from probably nonviable hypoperfused tissue. 15–17 In the same examination, MR angiography (MRA) can demonst...
13 cze 2024 · Neuroimaging in the evaluation of acute stroke is used to differentiate hemorrhage from ischemic stroke, to assess the degree of brain injury, and to identify the vascular lesion responsible for the stroke. Multimodal computed tomography (CT) and magnetic resonance imaging (MRI), including perfusion imaging, can distinguish between brain tissue ...
of patients with acute ischemic stroke, there is a need for further improvements in acquisition speed. Methods —Inclusion criteria for this prospective, single institutional study were symptoms of acute ischemic stroke within
Low-field (LF) MRI (<0.5T) can detect several types of brain injury, including ischaemic and haemorrhagic stroke. Implementing LF-MRI in acute stroke care may offer several advantages, including extended applicability, increased safety, faster administration, reduced staffing and costs.
Advanced stroke CT and MRI protocols, including arterial collateral status and core/penumbra mismatch, provide precise information about the individual stroke pathophysiology. The use individualized physiological imaging should allow better patient selection for treatment within and beyond the usual time therapeutic window.
A comprehensive MRI stroke protocol consists of the following: (1) diffusion-weighted imaging (DWI); (2) fluid-attenuated inversion recovery (FLAIR); (3) gradient-echo (GRE); (4) MR angiog-raphy (MRA); and (5) perfusion imaging.
