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Table 3 The diagnostic performance of CCTA and DL-LEM in identifying ≥ 75% stenosis

From: Use of a deep-learning-based lumen extraction method to detect significant stenosis on coronary computed tomography angiography in patients with severe coronary calcification

 

Evaluation 1

Evaluation 2

CCTA group

DL-LEM group

CCTA group

DL-LEM group

Sensitivity

72.1% (64.8–78.7%)

72.7% (65.4–79.2%)

100% (93.4–100%)

100% (93.4–100%)

Specificity

75.1% (71.8–78.2%)

77.3% (74.1–80.3%)

0% (0–3.7%)

10.9%** (6.4–17.1%)

Positive predictive value

40.9% (35.3–46.7%)

43.4% (37.6–49.3%)

35.5% (29.3–42.1%)

38.2% (31.6–45.1%)

Negative predictive value

91.8% (89.3–93.9%)

92.2% (89.8–94.2%)

N/A (0–100%)

100% (71.3–100%)

Accuracy

74.5% (71.5–77.4%)

76.4%** (73.5–79.2%)

35.5% (29.3–42.1%)

42.5%** (36.0–49.2%)

  1. N/A not available
  2. **p < 0.01. Data are presented with 95% confidence intervals in parentheses