A randomized comparison of EUS-guided FNA versus CT or US-guided FNA for the evaluation of pancreatic mass lesions.

Published

Journal Article

BACKGROUND: Diagnosing pancreatic cancer by EUS-FNA is a potentially appealing alternative to percutaneous biopsy. AIM: To compare EUS-FNA with CT or US-guided FNA for diagnosing pancreatic cancer. DESIGN: Single center, prospective, randomized, cross-over. SETTING: Duke University Medical Center. POPULATION: Eighty-four patients referred with suspicious solid pancreatic mass lesions randomized to CT/US-FNA (n = 43) or EUS-FNA (n = 41). INTERVENTION: Patients underwent an imaging procedure/FNA. If cytology was nondiagnostic, cross over to the other modality was offered. Final outcome was determined by clinical follow-up every 6 months for 2 years and/or surgical pathology for patients with negative FNA. MAIN OUTCOME MEASUREMENTS: Sensitivity and accuracy of EUS-FNA versus CT/US-FNA for pancreatic cancer. RESULTS: There were 16 true positive (TP) by CT/US-FNA and 21 TP by EUS-FNA. Sixteen of the 20 CT/US-FNA negative patients crossed over to EUS-FNA; 12 underwent FNA, 4 had no mass at EUS. Seven of the 12 had positive EUS-FNA. Eight EUS-FNA negative crossed over to CT/US; 4 had no mass at CT/US, 3 remained true negative throughout follow-up, 1 had chronic pancreatitis at surgery. The sensitivity of CT/US-FNA and EUS-FNA for detecting malignancy was 62% and 84%, respectively. A comparison of the accuracy for CT/US-FNA and EUS-FNA was not statistically significant (P = .074, chi(2)). LIMITATIONS: Failure to meet target enrollment resulted in an inability to demonstrate a statistically significant difference between the 2 modalities. CONCLUSIONS: EUS-FNA is numerically (though not quite statistically) superior to CT/US-FNA for the diagnosis of pancreatic malignancy.

Full Text

Duke Authors

Cited Authors

  • Horwhat, JD; Paulson, EK; McGrath, K; Branch, MS; Baillie, J; Tyler, D; Pappas, T; Enns, R; Robuck, G; Stiffler, H; Jowell, P

Published Date

  • June 2006

Published In

Volume / Issue

  • 63 / 7

Start / End Page

  • 966 - 975

PubMed ID

  • 16733111

Pubmed Central ID

  • 16733111

International Standard Serial Number (ISSN)

  • 0016-5107

Digital Object Identifier (DOI)

  • 10.1016/j.gie.2005.09.028

Language

  • eng

Conference Location

  • United States