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Table 5 Performance of multiparametric model and visual wall motion analysis in the test and validation groups

From: Combination of single quantitative parameters into multiparametric model for ischemia detection is not superior to visual assessment during dobutamine stress echocardiography

 

Group

Sensitivity, % (95 % CI)

Specificity, % (95 % CI)

Positive predictive value, % (95 % CI)

Negative predictive value, % (95 % CI)

Visual wall motion analysis

Test

76.8 (65.6; 85.2)

89.0 (80.4; 94.1)

85.5 (74.7; 92.2)

82.0 (72.8; 88.6)

Validation

75.8 (64.2; 84.5)

74.4 (58.9; 85.4)

83.3 (71.9; 90.7)

64.4 (49.8; 76.7)

Model for at least one stenosis for patient

Test

91.6 (82.8; 96.1)

86.3 (77.0; 92.2)

85.5 (75.9; 91.7)

92.0 (83.6; 96.3)

Validation

66.7 (55.9; 76.7)

77.8 (61.9 ;88.3)

85.2 (73.4; 92.3)

54.9 (41.4; 67.7)

LAD model

Test

90.6 (79.8; 95.9)

92.9 (86.0; 96.5)

87.3 (76.0; 93.7)

94.8 (88.4; 97.8)

Validation

40.4 (28.2; 53.9)

66.0 (52.6; 77.3)

53.9 (38.5; 68.4)

53.0 (41.2; 64.6)

LCX model

Test

85.6 (70.6; 93.7)

94.0 (88.1; 97.1)

81.0 (65.8; 90.5)

95.6 (90.1; 98.1)

Validation

20.5 (10.8; 35.5)

87.8 (77.9; 93.7)

50.0 (28.0;72.0)

65.2 (54.8; 74.3)

RCA model

Test

85.4 (72.8; 92.7)

92.2 (85.4; 96.0)

83.7 (71.0; 91.5)

93.1 (86.5; 96.6)

Validation

45.5 (31.7;59.9)

78.7 (66.9; 87.1)

60.6 (43.7; 75.3)

66.7 (55.2; 76.5)

  1. LAD Left ascending artery, LCX Left circumflex artery, RCA Right coronary artery, CI Confidence interval