Basal ganglia calcification | Radiology Reference Article - Radiopaedia.org
2024年5月20日 · Basal ganglia calcification is common and is seen in approximately 1% of all CT scans of the brain, depending on the demographics of the scanned population. It is seen more frequently in older patients and is considered a normal incidental and idiopathic finding in an elderly patient but should be considered pathological in persons younger than ...
CT Brain Anatomy - Grey matter structures - Radiology Masterclass
Important grey matter structures visible on CT images of the brain include the cortex, insula, basal ganglia, and thalamus. The cerebral cortex is a layer of grey matter formed in gyri (folds) over the entire brain surface. The basal ganglia and the thalamus are important grey matter structures which are located deep to the insula.
Hypoxic-ischemic encephalopathy (adults and children)
2024年10月6日 · CT. diffuse edema with effacement of the CSF-containing spaces. decreased cortical grey matter attenuation with a loss of normal grey-white differentiation. decreased bilateral basal ganglia attenuation. reversal sign: reversal of the normal CT attenuation of grey and white matter, demonstrated within the first 24 hours in a small number of ...
Describing thalamic and basal ganglia abnormalities on brain …
2021年1月4日 · On normal computed tomography (CT) scans of the basal ganglia, you should be able to see the lentiform nucleus, which consists of the globus pallidus and the putamen, because they all have a slightly higher attenuation than the surrounding white matter.
Basal ganglia lesions in children and adults - European Journal of ...
Magnetic resonance imaging (MRI) and computed tomography (CT) – to a lesser degree – allow for detection of basal ganglia injury. On MR images the caudate and lentiform nuclei and thalami follow the signal intensity of the cerebral cortex – they are slightly hyperintense as compared to the white matter on T2-weighted images.
Basal ganglia hemorrhage | Radiology Reference Article - Radiopaedia.org
2024年7月12日 · Basal ganglia hemorrhages are a common form of intracerebral hemorrhage, and usually result from poorly controlled long-standing hypertension, although they also have other causes. When due to chronic hypertension, the stigmata of chronic hypertensive encephalopathy are often present (see cerebral microhemorrhages).
Bilateral lesions of the basal ganglia and thalami (central
2020年8月5日 · A diffuse hypodensity of bilateral basal ganglia and thalami extending into the brainstem and adjacent cerebral hemispheres with mild mass effect is the typical pattern seen on the initial CT scan, which may, however, remain unremarkable.
Hypoxic-Ischemic Brain Damage - Radiology Key
2016年7月23日 · First row: Axial computed tomography (CT) of the basal ganglia showing symmetrical hypodensity in the caudate nuclei (left). Axial CT scans of the brain without contrast revealing linear hyperdensity outlining the cortex (right).
Intracranial calcifications on CT: an updated review - PMC
Findings: Blush-like calcifications within the bilateral basal ganglia (arrows) including the thalami early in the course of the disease. In addition, there is decreased bifrontal peri-ventricular density from demyelination (arrowheads).
Imaging Patterns of Toxic and Metabolic Brain Disorders
2019年10月7日 · Uremic encephalopathy has three patterns of imaging findings: basal ganglia involvement (most common), cortical or subcortical involvement (PRES-like), and white matter involvement (caused by ATL). Imaging findings are unspecific, and the patient’s clinical history and laboratory findings are indispensable for diagnosis.