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Mean ± SD, or n (%)
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p
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|---|
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Patients with ACI (n = 196)
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Patients without ACI (n = 491)
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|---|
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Plaque morphology
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Lumen area, mm2
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45.3 ± 15.2
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44.4 ± 14.9
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0.443
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Wall area, mm2
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35.4 ± 11.6
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32.5 ± 11.0
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0.002
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Total vessel area, mm2
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80.7 ± 19.5
|
77.0 ± 20.7
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0.016
|
|
Mean wall thickness, mm
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1.3 ± 0.5
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1.2 ± 0.4
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0.007
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Normalized wall index, %
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44.2 ± 10.7
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42.6 ± 9.3
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0.122
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Luminal stenosis, %
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26.4 ± 40.0
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16.1 ± 27.5
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0.058
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a Plaque volume, mm3
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722.5 ± 475.3
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667.3 ± 426.9
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0.320
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Presence of plaque compositions
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Calcification
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101 (51.5)
|
247 (50.3)
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0.772
|
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Fibrous cap rupture
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18 (9.2)
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40 (8.1)
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0.659
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LRNC
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148 (75.5)
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380 (77.4)
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0.597
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All IPH
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42 (21.4)
|
76 (15.5)
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0.062
|
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Fresh IPH
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22 (11.2)
|
38 (0.8)
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0.804
|
|
Recent IPH
|
8 (0.4)
|
23 (0.5)
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0.185
|
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Both two types of IPH
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12 (0.6)
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15 (0.3)
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0.274
|
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b Size of plaque compositions
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Volume of calcification, mm3
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37.1 ± 76.2
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38.7 ± 51.8
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0.194
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% calcification volume, %
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3.3 ± 4.2
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4.0 ± 4.0
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0.046
|
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Volume of LRNC, mm3
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166.5 ± 243.9
|
113.4 ± 153.7
|
0.083
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|
% LRNC volume, %
|
14.9 ± 14.2
|
12.1 ± 11.1
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0.105
|
|
Volume of IPH, mm3
|
164.9 ± 200.5
|
71.4 ± 67.7
|
0.006
|
|
% IPH volume, %
|
12.1 ± 10.5
|
7.0 ± 5.9
|
0.014
|
- LRNC lipid-rich necrotic core, IPH intraplaque hemorrhage. a The value was calculated from the arterial slices with atherosclerotic plaque. b The value was included from the arterial slices with the corresponding plaque composition, respectively
