MR Colonography is a new non invasive technique for colonic imaging. The first studies in man appeared in 1997-1998. MR Colonography requires an endoluminal contrast and combines volumetric acquisition with sophisticated image post-processing referred as virtual endoscopy. New technical developments such as fecal tagging were recently introduced. MR Colonography now enters into a phase of clinical evaluation. This article describes the available technique as well as pitfalls and artifacts with regard to our own experience.