Similar Procedures

Modalities are the same or similar
Interventional overlap is same or partial
All regions in the Reference study are present in the similar study
Angio overlap is same or partial
Contrast overlap is same or partial

Related Prior Procedures

Relate all body system equivalencies
Angio overlap is same or partial
Include all CT and MR for related region overlap
For Bone studies exclude Soft studies
For Soft studies exclude Bone studies
Include related modalities for related region overlap with angio exclusion for bony studies

Overlapping Procedures

Related procedure overlaps partially or completely.

Adjacent Procedures

Related procedure includes at least one adjacent extension of a body region.

Unrelated Procedures

Any related procedure not assessed as similar, related, overlapping, or adjacent.