title: Pancreatic tumors: evaluation with endoscopic US, CT, and MR imaging.
abstract: OBJECTIVE
  To compare the value of endosonography (endoscopic ultrasound [US]), dynamic computed tomography (CT), and magnetic resonance (MR) imaging in the evaluation of pancreatic tumors.
  
  
  METHODS
  Forty-nine consecutive patients with clinical suspicion of pancreatic tumor underwent endoscopic US (n = 49), CT (n = 46), and MR imaging (n = 25). The final diagnosis of a malignant (n = 22), benign (n = 2), or inflammatory (n = 9) tumor, or no (n = 16) tumor was made at surgery (n = 28) and/or a combination of biopsy (n = 9) and 9-24-month follow-up (n = 12).
  
  
  RESULTS
  The sensitivity was 94% for endoscopic US, 69% for CT, and 83% for MR imaging. Specificity was 100% for endoscopic US, 64% for CT, and 100% for MR imaging. Accuracy was 96% for endoscopic US, 67% for CT, and 84% for MR imaging. The sensitivity for the detection of tumors less than 3 cm in diameter was 93% for endoscopic US (n = 15), 53% for CT (n = 15), and 67% for MR imaging (n = 12).
  
  
  CONCLUSIONS
  Endoscopic US is more accurate than dynamic CT and MR imaging in the diagnosis of pancreatic tumor, particularly for tumors less than 3 cm in diameter.
authors.affiliation: Department of Radiology, University Hospital of Zurich, Switzerland.
authors.forename: M F
authors.initials: MF
authors.lastname: Müller
authors.forename: C
authors.initials: C
authors.lastname: Meyenberger
authors.forename: P
authors.initials: P
authors.lastname: Bertschinger
authors.forename: R
authors.initials: R
authors.lastname: Schaer
authors.forename: B
authors.initials: B
authors.lastname: Marincek
mesh_terms: D018270:Carcinoma, Ductal, Breast / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D003952:Diagnostic Imaging; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D010179:Pancreas / Q000473:pathology*; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D013997:Time Factors