Table 4

Agreement and accuracy of remote expert HCU diagnosis respect to conventional echocardiography in group A (n=774 patients)

Conventional echocardiographic diagnosisn (%)κ 95% CISensitivity (95% CI)Specificity (95% CI)PPV (95% CI)NPV (95% CI)
AS*66 (7.7)0.66 (0.57 to 0.74)98.4 (90.7 to 99.9)92.1 (88.8 to 93.9)53.7 (44.5 to 62.7)99.8 (99.0 to 99.9)
AR*32 (3.7)0.84 (0.75 to 0.93)96.8 (82.0 to 99.8)98.6 (97.4 to 99.3)75.6 (53.3 to 87.1)99.8 (99.1 to 100)
MR*51 (5.9)0.88 (0.81 to 0.94)96.0 (85.4 to 99.3)98.6 (97.3 to 99.3)83.5 (70.5 to 91.1)99.7 (98.8 to 99.9)
MS*4 (0.5)0.43 (0.13 to 0.82)100 (31.9 to 100)98.9 (94.6 to 99.6)27.3 (17.3 to 60.1)100 (99.6 to 100)
TR*42 (4.9)0.78 (0.68 to 0.88)80.9 (66.3 to 90.8)98.6 (97.4 to 99.3)77.2 (61.7 to 88.0)98.9 (97.7 to 99.)
HCM8 (0.9)0.73 (0.50 to 0.96)87.5 (44.7 to 99.3)99.5 (98.6 to 99.8)63.6 (31.6 to 87.6)99.9 (99.1 to 100)
LV dysfunction40 (4.7)0.72 (0.62 to 0.83)90.0 (75.4 to 96.7)97.1 (95.5 to 98.1)63.1 (49.3 to 75.2)99.4 (98.4 to 99.8)
LVH*134 (17.3)0.77 (0.67 to 0.88)92.5 (86.3 to 96.1)96.5 (94.7 to 97.8)84.9 (77.8 to 90.1)98.4 (96.9 to 99.1)
LA dilation*86 (11.1)0.63 (0.53 to 0.73)62.5 (50.9 to 72.8)93.9 (91.8 to 96.5)54.4 (43.7 to 64.7)95.6 (93.7 to 96.9)
AA dilation50 (6.5)0.71 (0.61 to 0.0.82)76.0 (61.5 to 86.5)97.9 (96.5 to 98.7)71.7 (57.4 to 81.8)98.5 (97.0 to 99.1)
  • *Moderate or severe lesion.

  • AA, aortic root or proximal ascending aorta; AR, aortic regurgitation; AS, aortic stenosis; HCU, hand-held cardiac ultrasound; HCM, hypertrophic cardiomyopathy; LVH, left ventricle hypertrophy; MR, mitral regurgitation; MS, mitral stenosis; NPV, negative predictive value; PPV, positive predictive value; TR, tricuspid regurgitations.