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Hace 6 días · Segments. The anterior cerebral artery is divided into five segments 8-10: A1: horizontal or pre-communicating segment. originating from the terminal bifurcation of the internal carotid artery, extending ~14 mm in length. terminates at the anterior communicating artery. A2: vertical, post-communicating or infracallosal segment.
9 de may. de 2024 · Tumor thrombus. While any neoplastic lesions can cause inferior vena cava thrombosis, renal cell carcinomas are the most common malignancy to extend into the inferior vena cava and this has important implications for surgical management 1. Other tumors that have a tendency to cause inferior vena cava thrombosis are hepatocellular carcinoma ...
16 de may. de 2024 · Citation, DOI, disclosures and article data. Intracranial hemorrhage is a collective term encompassing many different conditions characterized by the extravascular accumulation of blood within different intracranial spaces. A simple categorization is based on location: intra-axial hemorrhage. intracerebral hemorrhage (ICH)
Hace 2 días · Cerebral digital subtraction angiography (DSA) is indicated in a variety of settings including: diagnosis and treatment of: aneurysms 1. acute ischemic stroke. vascular abnormalities 1. arteriovenous malformation. arteriovenous fistula. caroticocavernous fistula. cerebral vasospasm post subarachnoid hemorrhage.
16 de may. de 2024 · Citation, DOI, disclosures and article data. Thalamic hemorrhages are a common form of intracerebral hemorrhage, and usually are a result of poorly controlled long-standing hypertension, although also have other causes. When due to chronic hypertension, the stigmata of chronic hypertensive encephalopathy are often present (see cerebral ...
20 de may. de 2024 · Terminology. The spot sign generally defined as a unifocal region of contrast enhancement resulting in focal increased density compared to the surrounding hematoma on CT angiography. The shape is not important and it can be spherical, linear or branching. The spot sign should not be confused with the dot sign consisting of a hyperdense thrombus ...
27 de may. de 2024 · Intracerebral haemorrhage (ICH), or intraparenchymal cerebral haemorrhage, is a subset of an intracranial haemorrhage as well as of stroke, defined by the acute accumulation of blood within the brain parenchyma. This article concerns non-traumatic intracerebral haemorrhages; traumatic haemorrhagic cerebral contusions are discussed separately.
