head ct - DocNeuro

Fusiform Aneurysm

Christopher Buckle MD — Fri, 15 Feb 2013 15:51:40 +0000

Intracranial aneurysms are dilations of the vascular wall. They can be subdivided according to morphology. Fusiform aneurysms are ovoid and elongated, while saccular ones are circumscribed, and spherical. Fusiform aneurysms are less common than saccular ones ; Given their wide neck and elongated morphology, Fusiform aneurysms can be difficult to treat, especially by endovascular methods. […]

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Acute Ischemic Stroke CT

Christopher Buckle MD — Mon, 31 Dec 2012 04:51:35 +0000

Answer: D. Acute Infarct. This is an acute embolic non-hemorrhagic right middle cerebral artery infarct visible on CT. There is a hyperdense right middle cerebral artery with subtle loss of grey white differentiation consistent with an acute embolic infarct. Figure (a) axial non contrast CT demonstrates a hyperdense middle cerebral artery. There is subtle loss of […]

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Semicircular Canal Dehiscence

Christopher Buckle MD — Sun, 25 Nov 2012 17:51:09 +0000

There are three semicircular canals – superior, lateral and posterior. The semicircular canals are integral to maintaining balance and equilibrium with changes in body and head position. Dehiscence of the superior semicircular canal is a rare finding characterized by a partial absence of the superior aspect of the otic capsule, resulting in a communication between […]

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Early Signs of Stroke on CT

Naoum P. Issa MD PhD — Sun, 03 Jun 2012 15:27:29 +0000

Despite its poor sensitivity for detecting embolic strokes, head CT scan remains the initial imaging modality in the work up of suspected acute stroke. The rationale is to initially rule out hemorrhagic stroke and other intra-cranial hemorrhages, for which CT is the preferred imaging modality because of its sensitivity for detecting fresh blood and its […]

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