| 
      
        |   | UAP
          (n=67) | SAP
         (n=35) | p-value |  
        | Rupture    at plaque shoulder | 45    (67) | 25    (71) | 0.660 |  
        | Location    of rupture |   |   |   |  
        |  Proximal to the MLA site | 33    (49) | 20    (57) | 0.449 |  
        |  MLA site | 24    (36) | 11    (31) | 0.657 |  
        |  Distal to the MLA site | 10    (15) | 4    (11) | 0.626 |  
        | Distance    between rupture site and MLA site, mm | 2.64    ± 1.45 | 2.99    ± 1.70 | 0.280 |  
        | Longitudinal morphological features of    plaque rupture |   |   |   |  
        |  Proximal-type | 30    (45) | 14    (40) | 0.644 |  
        |  Mid-type | 29    (43) | 17    (49) | 0.610 |  
        |  Distal-type | 8    (12) | 4    (11) | 0.939 |  
        | Maximal    ruptured cavity area, mm2 | 1.57    ± 0.54 | 1.30    ± 0.72 | 0.032 |  
        | Lumen    area at rupture site, mm2 | 3.00    ± 0.86 | 3.45    ± 1.18 | 0.030 |  
        | MLA,    mm2 | 2.69    ± 0.80 | 3.12    ± 1.14 | 0.029 |  
        | Lipid-rich    plaque | 56    (84) | 22    (63) | 0.019 |  
        | Thrombus | 63    (94) | 1    (3) | <0.001 |  Values are given as n (%) or mean ± standard deviation. UAP = unstable angina
pectoris; SAP = stable angina pectoris; MLA = minimal lumen area
 |