title: [Comparison of scanners and porto-scanners, both in helical mode, for the study of hepatic metastases. Prospective study in 12 patients].
abstract: OBJECTIVE
  The aim of this study was to compare helical CTAP and helical CT-scan in the preoperative assessment of liver metastases.
  
  
  METHODS
  A prospective unicentric study in 12 patients was performed with helical CTAP and helical CT-scan. All patients underwent partial hepatectomy with intraoperative palpation and sonography within 19 days (mean: 9 days).
  
  
  RESULTS
  Examination of resected liver specimens found 38 metastases, from colorectal cancer in 36 cases. The sensitivity was 92.1% for helical CTAP and 79% for helical CT-scan. This sensitivity was 85% for helical CTAP and 60% for helical CT-scan for nodules 1 cm or less in diameter (P = 0.08).
  
  
  CONCLUSIONS
  In the preoperative screening of liver metastases, helical CT-scan should be performed as the first choice examination. When hepatic lesions seem to be curable by resection based on helical dynamic CT-scan results, helical CTAP should be performed to increase the sensitivity of detection of lesions 1 cm or less in diameter.
authors.affiliation: Service de Radiologie, Hôpital Beaujon, Clichy.
authors.forename: M P
authors.initials: MP
authors.lastname: Vullierme
authors.forename: A
authors.initials: A
authors.lastname: Abdelouafi
authors.forename: V
authors.initials: V
authors.lastname: Vilgrain
authors.forename: A
authors.initials: A
authors.lastname: Denys
authors.forename: A
authors.initials: A
authors.lastname: Sibert
authors.forename: Y
authors.initials: Y
authors.lastname: Menu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000473:pathology; D004938:Esophageal Neoplasms / Q000473:pathology; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D008297:Male; D008875:Middle Aged; D011172:Portography / Q000379:methods*; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D015898:Tomography Scanners, X-Ray Computed; D014057:Tomography, X-Ray Computed / Q000379:methods*; D002583:Uterine Cervical Neoplasms / Q000473:pathology