title: [Detection of malignant focal hepatic lesions. Comparison of ultrasonography, computerized tomography during arterial portography, delayed computerized tomography and magnetic resonance imaging].
abstract: OBJECTIVE
  This study was performed to compare the sensitivity of ultrasonography, computerized tomography during arterial portography, delayed computerized tomography, and magnetic resonance imaging to detect focal liver lesions. Forty three patients with primary or secondary malignant liver lesions were studied prior to surgical intervention.
  
  
  METHODS
  The results of the imaging studies were compared with intraoperative examination of the liver, intraoperative ultrasonography and pathology results (29 patients). In the non-operated (14 patients) group, we compared the number of lesions detected by each technique.
  
  
  RESULTS
  One hundred and forty six lesions were detected. There was 84% sensitivity with computerized tomography during arterial portography, 61.3% with delayed scan, 63.3% with magnetic resonance imaging and 51% with ultrasonography in operated patients. In patients who did not undergo surgery, magnetic resonance imaging was more sensitive in detecting lesions.
  
  
  CONCLUSIONS
  In operated and non-operated patients series, CT during arterial portography had the highest sensitivity, but magnetic resonance imaging had the most consistent overall results.
authors.affiliation: Service de Radiodiagnostic et Radiologie Interventionnelle, Hospitalier Universitaire Vaudois, Lausanne, Suisse.
authors.forename: F
authors.initials: F
authors.lastname: Schneider
authors.forename: L
authors.initials: L
authors.lastname: Chapuis
authors.forename: M
authors.initials: M
authors.lastname: Gillet
authors.forename: S
authors.initials: S
authors.lastname: Leyvraz
authors.forename: P
authors.initials: P
authors.lastname: Schnyder
authors.forename: R
authors.initials: R
authors.lastname: Meuli
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011172:Portography; D012680:Sensitivity and Specificity; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography