Pallidal Signal Intensities on T1-weighted MRI are Highly Observed in Advanced Liver Cirrhosis
نویسندگان
چکیده
منابع مشابه
High pallidal T1 signal is rarely observed in obstructive jaundice, but is frequently observed in liver cirrhosis.
Although high signal intensities in the globus pallidus are frequently observed in T1-weighted magnetic resonance images (MRI) of patients with liver cirrhosis, it is unclear whether these increases are due to portal-systemic shunt or obstruction of biliary excretion. We therefore studied pallidal signals in 18 cancer patients with bile duct obstruction and marked jaundice (>10 mg/dl). Patients...
متن کاملHigh signal intensities on T1-weighted MRI as a biomarker of exposure to manganese.
Increased signal in T1-weighted images was observed in the experimental manganese (Mn) poisoning of the non-human primate and a patient with Mn neurointoxication. However, our study showed that the increased signals in magnetic resonance images (MRI) were highly prevalent (41.6%) in Mn-exposed workers. Especially 73.5% of the welders showed increased signal intensities. Blood Mn concentration c...
متن کاملWhole blood and red blood cell manganese reflected signal intensities of T1-weighted magnetic resonance images better than plasma manganese in liver cirrhotics.
We examined whole blood (MnB), red blood cell (MnRBC), plasma (MnP) and urinary Mn (MnU) concentrations in 22 liver cirrhotics and 10 healthy controls to evaluate Mn concentration in which a fraction of biological samples best reflects pallidal signal intensities (pallidal index; PI) on T1-weighted magnetic resonance images (MRI) in liver cirrhotics. Increased signal intensity in the globus pal...
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Abnormalities in the brain generally manifest on MRI as changes in shape (morphometry) or changes in the nature of the tissue (signal intensity). Voxel-based statistical analysis approaches are able to objectively detect such changes throughout the brain. For example, Voxel Based Morphometry (VBM) [2] and Voxel Based T2relaxometry (VBR) [3] can detect subtle changes in tissue volume and T2 sign...
متن کاملNeurologic manifestations in welders with pallidal MRI T1 hyperintensity.
BACKGROUND Neurologic symptoms have been attributed to manganese fumes generated during welding. Increased T1 MRI signal in the basal ganglia is a biologic marker of manganese accumulation. Recent studies have associated welding and parkinsonism, but generally without MRI corroboration. OBJECTIVE To characterize the clinical and neuropsychological features of patients with MRI basal ganglia T...
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ژورنال
عنوان ژورنال: Korean Journal of Environmental Health Sciences
سال: 2012
ISSN: 1738-4087
DOI: 10.5668/jehs.2012.38.5.380