• Automated spectrophotometric bicarbonate analysis in duodenal juice compared to the back titration method 

      Erchinger, Friedemann Georg; Engjom, Trond; Gudbrandsen, Oddrun Anita; Tjora, Erling; Gilja, Odd Helge; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2016-02-03)
      Objectives We have recently evaluated a short endoscopic secretin test for exocrine pancreatic function. Bicarbonate concentration in duodenal juice is an important parameter in this test. Measurement of bicarbonate by ...
    • Is irritable bowel syndrome an organic disorder? 

      El-Salhy, Magdy; Gundersen, Doris Irene; Gilja, Odd Helge; Hatlebakk, Jan G; Hausken, Trygve (Peer reviewed; Journal article, 2014-01-14)
      Irritable bowel syndrome (IBS) is a common gastrointestinal disorder that is generally considered to be functional because there appears to be no associated anatomical defect. Stress and psychological factors are thought ...
    • Secretin-stimulated ultrasound estimation of pancreatic secretion in cystic fibrosis validated by magnetic resonance imaging 

      Engjom, Trond; Tjora, Erling; Wathle, Gaute Kjellevold; Erchinger, Friedemann Georg; Lærum, Birger Norderud; Gilja, Odd Helge; Haldorsen, Ingfrid S.; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2018-04)
      Objectives: Secretin-stimulated magnetic resonance imaging (s-MRI) is the best validated radiological modality assessing pancreatic secretion. The purpose of this study was to compare volume output measures from ...