Document Detail


An image analysis on MR imaging of the brain for hepatic encephalopathy.
MedLine Citation:
PMID:  2065167     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Through the Magnetic Resonance Imaging (MRI) sequences with T1 weighting (TR 600 msec/TE 20 msec) of the brain, the high intensity lesions due to hepatic encephalopathy have been demonstrated markedly. The data have been collected were based upon eleven patients with clinically proven hepatic encephalopathy. Three sets of normal brain MRI which were identified with no evidence of brain or liver diseases were also included in this study. After the brain MRI slices have been identified, it showed that the affected regions of interest (ROI) were around the largest third ventricle. The histogram which was generated out of that particular slice is composed of two distinguished peaks lumped together. After the decomposition and curve fitting procedures, the Gaussian distributions were identified with the mean value and the standard deviation. One was assumed to be gray index region for gray and white matter, the other with higher gray index value was the contribution of hepatic encephalopathy. Once the range of the distribution has been determined, the affected portion can be marked and highlighted. This mechanism of histogram decomposition and curve fitting techniques shows the valuable correlation with the clinical status of MR findings.
Authors:
H W Syh; W K Chu; N Mar; J R McConnell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biomedical sciences instrumentation     Volume:  27     ISSN:  0067-8856     ISO Abbreviation:  Biomed Sci Instrum     Publication Date:  1991  
Date Detail:
Created Date:  1991-08-09     Completed Date:  1991-08-09     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0140524     Medline TA:  Biomed Sci Instrum     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  29-33     Citation Subset:  IM    
Affiliation:
Dept. of Radiology, University of Nebraska Medical Center, Omaha 68105.
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MeSH Terms
Descriptor/Qualifier:
Brain / pathology*
Hepatic Encephalopathy / diagnosis*
Humans
Image Processing, Computer-Assisted*
Magnetic Resonance Imaging*
Microcomputers

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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