title: Nuclear magnetic resonance spectroscopy of plasma to distinguish between malignant and benign diseases causing jaundice and cholestasis.
abstract: The sera of 51 patients with malignant (n = 25) and benign (n = 26) hepatopancreatobiliary disorders were analysed by 1H magnetic resonance spectroscopy (NMR) in order to distinguish between malignant and benign diseases causing jaundice and/or cholestasis. Macromolecular linewidths were determined both manually and automatically with a computed analysis, and both methylene (CH2) and methyl (CH3) resonances were evaluated. The mean linewidth of the CH3 peak was significantly narrower in the patients with malignant disease than in the patients with benign disease both in the manual and computed analyses, but no significant differences in the CH2 peak were detected. Diagnostic sensitivity and specificity of the CH3 peak determined in the computed analysis were 92% and 27% respectively. In the light of the current study, it seems obvious that because overlap between benign and malignant groups was too great, 1H NMR spectroscopy of plasma is not of practical value in distinguishing between benign and malignant causes of jaundice and/or cholestasis.
authors.affiliation: Department of Surgery, Kuopio University Hospital, Finland.
authors.forename: P A
authors.initials: PA
authors.lastname: Pasanen
authors.forename: R
authors.initials: R
authors.lastname: Kauppinen
authors.forename: M J
authors.initials: MJ
authors.lastname: Eskelinen
authors.forename: K P
authors.initials: KP
authors.lastname: Partanen
authors.forename: P H
authors.initials: PH
authors.lastname: Pikkarainen
authors.forename: E M
authors.initials: EM
authors.lastname: Alhava
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001663:Bilirubin / Q000097:blood; D014408:Biomarkers, Tumor / Q000097:blood*; D001798:Blood Proteins / Q000032:analysis; D002779:Cholestasis / Q000209:etiology*; D005260:Female; D006801:Humans; D007565:Jaundice / Q000209:etiology*; D008107:Liver Diseases / Q000150:complications / Q000175:diagnosis*; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D010182:Pancreatic Diseases / Q000150:complications / Q000175:diagnosis*; D012680:Sensitivity and Specificity; D014280:Triglycerides / Q000097:blood
chemical_list: D014408:Biomarkers, Tumor; D001798:Blood Proteins; D046911:Macromolecular Substances; D014280:Triglycerides; D001663:Bilirubin