This value set includes codes based on the following rules:

• Include these codes as defined in http://dicom.nema.org/resources/ontology/DCM

  Code	Display	Definition
  122331	Plaque Plus Media Thickness	The distance from intimal leading edge to the external elastic membrane along any line passing through the luminal center, which is defined as the center of gravity of the lumen area.
  122332	Lumen Perimeter	Planimetered perimeter of the lumen.
  122330	EEM Diameter	External Elastic Membrane (EEM) diameter measured through the center point of the vessel. Center point of the vessel is defined as the center of gravity of the EEM area. The EEM is a discrete interface at the border between the media and the adventitia.

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  408706001	Stent Diameter
  397413000	Vessel lumen diameter