Radiographic sign(s) | Final diagnosis | PPV (95% CI) | NPV (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) |
---|---|---|---|---|---|
Enlarged heart | Neoplasia | 0.05 (0.09, 0.24) | 0.75 (0.62, 0.85) | 0.20 (0.05, 0.72) | 0.39 (0.22, 0.58) |
CHF | 0.90 (0.71, 0.97) | 0.81 (0.60, 0.93) | 0.86 (0.64, 0.97) | 0.87 (0.60, 0.98) | |
Pyothorax | 0.00 | 0.69 (0.58, 0.78) | 0 (0.00, 0.52) | 0.35 (0.19, 0.55) | |
Chylothorax | 0.05 (0.01, 0.21) | 0.88 (0.74, 0.94) | 0.33 (0.08, 0.91) | 0.42 (0.25, 0.61) | |
Mediastinal mass | Neoplasia | 1.00 | 0.79 (0.73, 0.83) | 0.25 (0.07, 0.52) | 1.00 (0.92, 1.00) |
CHF | 0.00 | 0.57 (0.54, 0.60) | 0.00 (0.00, 0.13) | 0.89 (0.75, 0.97) | |
Pyothorax | 0.00 | 0.79 (0.78, 0.80) | 0.00 (0.00, 0.26) | 0.92 (0.80, 0.98) | |
Chylothorax | 0.00 | 0.93 (0.92, 0.93) | 0.00 (0.00, 0.60) | 0.93 (0.83, 0.98) | |
Pleural margins rounded | Neoplasia | 0.15 (0.04, 0.42) | 0.71 (0.65, 0.75) | 0.12 (0.01, 0.36) | 0.76 (0.60, 0.87) |
CHF | 0.31 (0.13, 0.56) | 0.52 (0.46, 0.58) | 0.15 (0.04, 0.34) | 0.74 (0.56, 0.87) | |
Pyothorax | 0.31 (0.14, 0.55) | 0.83 (0.77, 0.88) | 0.33 (0.10, 0.65) | 0.82 (0.68, 0.91) | |
Chylothorax | 0.23 (0.12, 0.40) | 0.98 (0.90, 1.00) | 0.75 (0.19, 0.99) | 0.82 (0.70, 0.91) | |
Pulmonary mass | Neoplasia | 1.00 | 0.80 (0.75, 0.84) | 0.25 (0.07, 0.52) | 1.00 (0.92, 1.00) |
CHF | 0.00 | 0.53 (0.50, 0.56) | 0.00 (0.00, 0.13) | 0.88 (0.72, 0.97) | |
Pyothorax | 0.00 | 0.91 (0.91, 0.92) | 0.00 (0.00, 0.60) | 0.91 (0.80, 0.98) | |
Chylothorax | 0.00 | 0.81 (0.80, 0.82) | 0.00 (0.00, 0.26) | 0.93 (0.82, 0.98) | |
Pulmonary nodules | Neoplasia | 0.50 (0.13, 0.87) | 0.76 (0.72, 0.80) | 0.13 (0.02, 0.38) | 0.95 (0.85, 0.99) |
CHF | 0.00 | 0.53 (0.50, 0.56) | 0.00 (0.00, 0.13) | 0.88 (0.72, 0.97) | |
Pyothorax | 0.25 (0.04, 0.75) | 0.80 (0.77, 0.83) | 0.08 (0.21, 0.38) | 0.94 (0.82, 0.99) | |
Chylothorax | 0.25 (0.04, 0.72) | 0.95 (0.91, 0.97) | 0.25 (0.63, 0.81) | 0.95 (0.85, 0.99) | |
Caudal pulmonary artery | Neoplasia | 0.05 (0.09, 0.26) | 0.72 (0.63, 0.80) | 0.13 (0.03, 0.53) | 0.50 (0.33, 0.67) |
CHF | 0.68 (0.5, 0.82) | 0.68 (0.54, 0.79) | 0.62 (0.38, 0.82) | 0.74 (0.52, 0.90) | |
Pyothorax | 0.26 (0.15, 0.43) | 0.80 (0.67, 0.89) | 0.50 (0.19, 0.81) | 0.59 (0.41, 0.75) | |
Chylothorax | 0.00 | 0.88 (0.85, 0.91) | 0.00 (0.00, 0.71) | 0.54 (0.37, 0.69) | |
Caudal pulmonary vein | Neoplasia | 0.06 (0.01, 0.30) | 0.73 (0.65, 0.80) | 0.13 (0.00, 0.53) | 0.56 (0.38, 0.73) |
CHF | 0.69 (0.48, 0.84) | 0.65 (0.53, 0.76) | 0.55 (0.32, 0.77) | 0.77 (0.55, 0.92) | |
Pyothorax | 0.25 (0.12, 0.44) | 0.81 (0.43, 0.74) | 0.44 (0.14, 0.79) | 0.64 (0.45, 0.80) | |
Chylothorax | 0.00 | 0.88 (0.86, 0.91) | 0.00 (0.00, 0.71) | 0.59 (0.42, 0.74) | |
Alveolar pattern | Neoplasia | 0.18 (0.10, 0.29) | 0.64 (0.50, 0.76) | 0.40 (0.16, 0.68) | 0.36 (0.23, 0.52) |
CHF | 0.41 (0.31, 0.52) | 0.48 (0.33, 0.63) | 0.54 (0.33, 0.73) | 0.35 (0.19, 0.55) | |
Pyothorax | 0.32 (0.25, 0.40) | 0.96 (0.78, 0.99) | 0.92 (0.62, 1.00) | 0.51 (0.36, 0.66) | |
Chylothorax | 0.09 (0.5, 0.15) | 0.96 (0.81, 0.99) | 0.75 (0.19, 0.99) | 0.44 (0.30, 0.58) | |
Bronchial pattern | Neoplasia | 0.25 (0.09, 0.52) | 0.74 (0.68, 0.80) | 0.20 (0.04, 0.48) | 0.80 (0.65, 0.90) |
CHF | 0.33 (0.14, 0.60) | 0.53 (0.47, 0.59) | 0.15 (0.04, 0.35) | 0.76 (0.58, 0.89) | |
Pyothorax | 0.33 (0.15, 0.58) | 0.83 (0.76, 0.88) | 0.33 (0.10, 0.65) | 0.83 (0.69, 0.92) | |
Chylothorax | 0.00 | 0.91 (0.90, 0.93) | 0.00 (0.00, 0.60) | 0.78 (0.65, 0.88) | |
Interstitial pattern | Neoplasia | 0.20 (0.13, 0.29) | 0.63 (0.45, 0.78) | 0.53 (0.27, 0.79) | 0.27 (0.15, 0.43) |
CHF | 0.48 (0.39, 0.56) | 0.63 (0.44, 0.79) | 0.73 (0.52, 0.88) | 0.36 (20.4, 0.55) | |
Pyothorax | 0.23 (0.16, 0.30) | 0.84 (0.65, 0.94) | 0.75 (0.43, 0.95) | 0.34 (0.21, 0.49) | |
Chylothorax | 0.08 (0.04, 0.13) | 0.95 (0.76, 0.99) | 0.75 (0.19, 0.99) | 0.33 (0.21, 0.47) |