Rodent endosonography to monitor esophageal cancer

Navtej S. Buttar, Maurits J. Wiersema, Kenneth K. Wang, Cathrine J. DeMars, Ganapathy A. Prasad, Lori S. Lutzke

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Animal models of luminal cancers are important to understand and assess chemopreventive and chemotherapeutic interventions. However, the ability to assess tumor growth and response without animal sacrifice is limited. We assessed the ability of luminal sonography to assess the presence of tumor and its size in a surgical esophagojejunostomy model of esophageal cancer. Luminal sonography had a sensitivity of 88%, specificity of 100%, and accuracy of 93% in identifying the esophageal cancers. The tumor dimensions on luminal sonography were within 11% of autopsy measurements. Minimal tumor dimension was 2 mm and maximum 6.2 mm. The procedure was feasible without technical difficulty. In conclusion, rodent endosonography is a useful technique that can accurately determine the presence of tumors as well as their dimensions.

Original languageEnglish (US)
Pages (from-to)84-90
Number of pages7
JournalInternational Journal of Gastrointestinal Cancer
Issue number2-3
StatePublished - Jun 2006


  • Animal model
  • Barrett's esophagus
  • Chemoprevention
  • Esophageal cancer
  • Ultrasonography

ASJC Scopus subject areas

  • Oncology
  • Endocrinology
  • Gastroenterology


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