TY - JOUR
T1 - A quantitative evaluation of magnetic resonance image signal changes of the brain in chronic hepatic encephalopathy
AU - Norton, Neil S.
AU - McConnell, James R.
AU - Zetterman, Rowen K.
AU - Rodriguez-Sierra, Jorge F.
N1 - Funding Information:
The authors would like to thank Dr. Shailendra K. Sax-ena for reviewing this manuscript. This work was supported in part by the Department of Radiology at the University of Nebraska Medical Center and the Blanche Widaman Fellowship.
PY - 1994
Y1 - 1994
N2 - Hyperintensity in the basal ganglia of patients with serious liver disease is a common finding on T1-weighted magnetic resonance images. In this study, we used optical densitometry to quantitatively evaluate the hyperintense magnetic resonance image signal changes in the various regions of the brain of patients with chronic hepatic encephalopathy. The incidence and morphological distribution of the magnetic resonance signal changes were evaluated from T1-weighted magnetic resonance images of the brain from seven non-alcoholic patients and six healthy controls. Significant differences (p<0.05) between the patient group and controls were found in the limbic system (hippocampus, temporal lobe, cingulate gyrus, and fornix), extrapyramidal system and associated myelinated pathways (lentiform nucleus, tectum, tegmentum, cerebral peduncles, internal capsule and the corpus callosum). No measurable differences were observed in the frontal, parietal, and occipital cortex, or the dorsomedial thalamus. The presence of the high signal intensity changes on T1-weighted magnetic resonance image suggests that characteristic alterations occur in functional regions of the brain in chronic hepatic encephalopathy.
AB - Hyperintensity in the basal ganglia of patients with serious liver disease is a common finding on T1-weighted magnetic resonance images. In this study, we used optical densitometry to quantitatively evaluate the hyperintense magnetic resonance image signal changes in the various regions of the brain of patients with chronic hepatic encephalopathy. The incidence and morphological distribution of the magnetic resonance signal changes were evaluated from T1-weighted magnetic resonance images of the brain from seven non-alcoholic patients and six healthy controls. Significant differences (p<0.05) between the patient group and controls were found in the limbic system (hippocampus, temporal lobe, cingulate gyrus, and fornix), extrapyramidal system and associated myelinated pathways (lentiform nucleus, tectum, tegmentum, cerebral peduncles, internal capsule and the corpus callosum). No measurable differences were observed in the frontal, parietal, and occipital cortex, or the dorsomedial thalamus. The presence of the high signal intensity changes on T1-weighted magnetic resonance image suggests that characteristic alterations occur in functional regions of the brain in chronic hepatic encephalopathy.
KW - Basal ganglia
KW - Hepatic encephalopathy
KW - Image analysis
KW - Limbic system
KW - Magnetic resonance imaging
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U2 - 10.1016/S0168-8278(94)80236-X
DO - 10.1016/S0168-8278(94)80236-X
M3 - Article
C2 - 7890891
AN - SCOPUS:0027993111
SN - 0168-8278
VL - 21
SP - 764
EP - 770
JO - Journal of Hepatology
JF - Journal of Hepatology
IS - 5
ER -