Table 3 Localization performance of the proposed approach (mean and 95% confidence interval (CI)).

From: AI-enabled diagnosis and localization of myocardial ischemia and coronary artery stenosis from magnetocardiographic recordings

Tasks

Region/vessel

Metrics

  

Accuracy

Sensitivity

Specificity

PPV

NPV

F1

AUC

Localization of

Ischemic Region

Apex

71.5 (52.8, 84.7)

74.4 (44.0, 90.4)

71.9 (48.8, 85.6)

69.3 (40.4, 85.3)

80.1 (53.0, 92.5)

68.2 (47.2, 83.3)

0.72 (0.63, 0.81)

Anterior wall

77.1 (58.0, 89.1)

76.4 (44.6, 91.7)

78.0 (55.2, 90.1)

69.7 (39.1, 86.7)

86.4 (61.4, 95.6)

69.8 (47.3, 85.6)

0.76 (0.69, 0.83)

Septal wall

86.7 (69.0, 94.7)

86.3 (48.3, 95.9)

86.1 (65.5, 95.4)

72.3 (37.4, 91.1)

94.3 (73.7, 98.5)

77.6 (51.4, 91.3)

0.82 (0.70, 0.94)

Inferior wall

81.1 (62.4, 91.6)

75.4 (46.4, 90.7)

85.3 (61.7, 94.0)

82.5 (51.2, 92.9)

83.8 (59.1, 93.9)

76.3 (54.7, 89.6)

0.82 (0.76, 0.88)

Lateral wall

75.6 (56.9, 87.6)

80.7 (73.4, 91.8)

73.5 (50.8, 87.2)

64.0 (35.3, 84.3)

89.0 (63.1, 95.9)

68.6 (47.2, 84.0)

0.71 (0.56, 0.86)

Average

78.4

78.6

79

71.6

86.7

72.1

0.77

Localization of

Coronary Artery

Stenosis

LAD

71.1 (64.3, 77.1)

82.7 (75.4, 88.2)

42.5 (30.3, 55.8)

78.0 (70.5, 84.1)

50.0 (36.1, 63.9)

80.3 (75.2, 84.6)

0.63 (0.60, 0.66)

LCX

60.3 (52.8, 67.3)

83.5 (74.3, 89.8)

37.8 (28.5, 48.2)

69.7 (39.1, 86.7)

70.4 (55.8, 81.7)

67.5 (60.9, 73.5)

0.60 (0.57, 0.63)

RCA

64.5 (57.0, 71.3)

61.6 (51.1, 71.1)

68.1 (57.5, 77.1)

66.5 (55.7, 75.8)

63.1 (52.8, 72.2)

63.6 (56.1, 70.6)

0.65 (0.62, 0.68)

Average

65.3

75.9

49.5

71.4

61.2

70.5

0.63