2025年2月14日 · Basal ganglia and thalamus signal abnormalities occur in a wide variety of conditions. Ischemia/hypoxia, metabolic disorders and toxins, particularly those that affect the respiratory chain, have a predilection for affecting the basal ganglia as they are highly metabolically active.

2024年4月20日 · The causes of basal ganglia T2 hyperintensity can be remembered using the mnemonic LINT:

2024年11月10日 · In a strict anatomical sense, the basal ganglia contains three paired nuclei that together comprise the corpus striatum: caudate nucleus. lentiform nucleus. putamen. globus pallidus. Functionally, two additional nuclei are also part …

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.

On MRI, in addition to the white matter (and possibly spinal cord lesions), the basal ganglia and thalami are often bilaterally but asymmetrically involved with ill-defined T2 hyperintense lesions (Figs. 47 and 59) and variable heterogeneous contrast enhancement.

Some evolutive lesions have pathognomonic imaging features, such as the hemorrhagic or ischaemic stroke. Another important acute vascular lesion is the venous cerebral thrombosis which may lead to edema, infarction and/or hemorrhage. MRI may identify the thrombus which in T1 weighed images is usually isointense (acute) or hyperintense (subacute ...

2011年1月19日 · Radiologists may detect bilateral abnormalities of the basal ganglia and thalamus in different acute and chronic clinical situations, and although magnetic resonance (MR) imaging is the modality of choice for evaluation, the correct diagnosis can be made only by taking all relevant clinical and laboratory information into account.

orial review, we have described different cases affecting BG and thalamus in our Institute. Vascular conditions like infarcts, haemorrhage, cerebral venous thrombosis, Hypoxic Ischaemic Encephalopathy (HIE), toxic conditions like methanol and Carbon monoxide (CO) poisoning, metabolic conditions like hypo and hyper glycaemia, pontine demyelinosis...

Neuroradiological findings in basal ganglia diseases are also known. However, they may be similar in different diseases. Their assessment in children may require repeated MRI examinations depending on the stage of brain development (mainly the level of myelination).

Introduction: Radiologists may encounter bilaterally symmetrical abnormalities of the basal ganglia on magnetic resonance imaging (MRI), typically in the context of diffuse systemic, toxic or metabolic diseases. A systematic approach and broad knowledge of pathology causing this uncommon group of conditions would be useful.