In July 2005, Radiology published a consensus proposal for reporting in CT colonography. It has similar purpose and structure as Bi-RADS reporting system in breast imaging. According to this proposal, lesions and massess should be describes by:

• Lesion size: the largest dimension (excluding stalk in pedunculated polyps) measures on MRP or 3D views.
• Morphology:
  • Sessile: broad-based with height > width
  • Pedunculated: polyp with a stalk

In 1977, a grading system of gastroesophageal reflux on barium study was devised. It is based on the extent of retrograde flow of barium.