Japanese Circulation Society

Plenary Session 3
Risk Factors for Coronary Atherosclerosis in Recent Japanese Population Study: Hisayama Study Based on Pathological Assessment
Yutaka Nakashima

Figure 4. The grading system used for the global assessment of coronary atherosclerosis in this study. Grade 1 has less than 5 pre-atheroma of 14 sites examined, Grade 4 has 5-9 atheroma lesions. Grade 5 has advanced lesions at more than 9 sites or at least 2 major branches with 80% or greater luminal stenosis.)