2023年3月23日 · A CT stroke protocol is obtained in the emergency setting to rapidly diagnose and quantify patients presenting with probable ischemic strokes and to enable appropriate urgent management (e.g. endovascular clot retrieval or intravenous thrombolysis).

2023年4月26日 · A stroke is a clinical diagnosis that refers to a sudden onset focal neurological deficit of presumed vascular origin. Stroke is generally divided into two broad categories 1,2 : ischemic stroke (87%)

2025年1月19日 · Aging ischemic strokes can be important in a number of clinical and medicolegal settings. Both CT and MRI can help in determining when a stroke occurred as imaging features evolve in a reasonably predictable fashion. There is substantial heterogeneity in the terminology denoting time from onset.

Non-enhanced CT scan is the initial step to rule out intracranial hemorrhage during a 'stroke call', and can demonstrate some clear signs of ischemic stroke. This case illustrates the classic signs of middle cerebral artery territory infarct, such as the loss of the insular ribbon sign , the hyperdense MCA sign , and loss of gray-white matter ...

2024年3月4日 · The key to interpreting CT perfusion in the setting of acute ischemic stroke is understanding and identifying the infarct core and the ischemic penumbra, as a patient with a small core and a large penumbra is most likely to benefit from reperfusion therapies.

2025年1月17日 · For both CT and MRI it is worth dividing the features according to the time course. It should also be noted that middle cerebral artery infarcts are often incomplete affecting only perforator branches or one or more distal branches.

2024年6月18日 · The fogging phenomenon is seen on non-contrast CT or MRI of the brain and represents a transient phase of the evolution of cerebral infarct where the region of cortical infarction regains a near-normal appearance.

2023年4月15日 · ACA stroke syndrome presents as 1-3: dysarthria, aphasia; unilateral contralateral motor weakness (leg/shoulder > arm/hand/face) minimal sensory changes (two-point discrimination) in the same distribution as above; left limb apraxia; urinary incontinence; Pathology

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2024年4月11日 · Hemorrhagic stroke is a clinical diagnosis where an acute neurological deficit follows a bleed into the brain parenchyma.