Study of Oro-cecal Transit Time in Healthy Subjects Using Scintigraphy and Lactulose Hydrogen Breath Test.

Radionuclide scintigraphy is the gold standard technique to interpret OCTT but there is no normative data available for its interpretation in Indian population. Previous studies to determine OCTT have all been done with LHBT, which has many limitations. Besides there are few small comparative studies between scintigraphy and LHBT, that too not in Indian population. The aim of this study is to validate LHBT to measure OCTT compared with scintigraphy and to standardize the normal OCTT in healthy individuals