Tutorial | Part 1: Definitions

Diffuse disease

Present when at least 75% of the length of any segment(s) proximal to the lesion, at the site of the lesion or distal to the lesion has a vessel diameter of
Note: In case of a Total Occlusion, Diffusely diseased and narrowed segment for this vessel should be scored 'No' since we are not sure about the actual situation prior to total occlusion opening.