Table 3

Low-dose CT scan with Veo reconstruction, accuracy for interstitials abnormalities

P (%)τ (%)κSe (%, CI 95%)Sp (%, CI 95%)PPV (%, CI 95%)PNV (%, CI 95%)
Total55.670.40.4446.7 (21.3 to 73.4)100 (73.5 to 100)100 (59 to 100)60 (36.1 to 80.9)
Subpleural dots and branching opacities33.3740.3433.3 (7.5 to 70.1)94.4 (72.7 to 99.9)75 (19.4 to 99.4)73.9 (51.6 to 89.8)
Curvilinear subpleural lines8000000
Areas of ground glass opacities25.977.80.214.3 (0.4 to 57.9)100 (83.2 to 100)100 (2.5 to 100)76.9 (56.4 to 91)
Honeycombing0
Reticulations18.592.60.7160 (14.7 to 94.7)100 (84.6 to 100)100 (29.2 to 100)91.7 (73 to 99)
Septal lines14.885.20.2625 (0.6 to 80.6)95.7 (78.1 to 99.9)50 (1.3 to 98.7)88 (68.8 to 97.5)
  • τ, agreement with standard CT scan; κ, kappa coefficient; P, prevalence; PPV, positive predictive value; PVN, predictive negative value; Se, sensitivity; Sp, specificity.