Table 1 Accuracy and Confidence of Diagnosis and Disposition decisions.

From: The feasibility of deep learning-based synthetic contrast-enhanced CT from nonenhanced CT in emergency department patients with acute abdominal pain

  

Accuracy of diagnosis

Confidence of diagnosis

Accuracy of disposition

Confidence of disposition

1st session

2nd session

1st session

2nd session

1st session

2nd session

1st session

2nd session

Total

Range†

69.4–81.0

70.5–84.7

2.87–4.09

2.99–4.50

70.3–84.4

71.7–84.1

3.83–4.19

4.11–4.53

P values‡

0.125, < 0.001, 0.230, 0.289, 0.023, 0.012

 < 0.001, < 0.001, 0.335, < 0.001, < 0.001, < 0.001

 > 0.999, 0.250, 0.774, > 0.999, 0.219, 0.180

 < 0.001, < 0.001, 0.318, < 0.001, < 0.001, < 0.001

Dataset-A

Range†

75.5–87.0

77.0–92.5

3.12–4.18

3.20–4.62

76.0–91.5

77.0–91.5

3.97–4.26

4.21–4.60

P values‡

0.063, 0.001, 0.424, 0.25, 0.180, 0.040

0.375, < 0.001, 0.528, 0.01, < 0.001, < 0.001

 > 0.999, 0.500, > 0.999, > 0.999, 0.500, 0.453

< 0.001, < 0.001, 0.867, < 0.001, < 0.001, < 0.001

Dataset-B

Range†

61.4–73.2

62.1–75.8

2.55–4.03

2.71–4.36

60.1–75.2

61.4–74.5

3.64–4.11

3.90–4.44

P values‡

 > 0.999, 0.500, 0.549, > 0.999, 0.125, 0.500

< 0.001, < 0.001, 0.041, < 0.001, < 0.001, < 0.001

 > 0.999, > 0.999, 0.727, > 0.999, 0.625, 0.500

< 0.001, < 0.001, 0.073, < 0.001, < 0.001, < 0.001

  1. †The range of accuracies (%) and arithmetic means of confidence (5-point scale) reported by six radiologists.
  2. ‡Numbers are P values reported by each radiologist. McNemar’s test and Wilcoxon test were performed for each radiologist between 1st and 2nd sessions for comparison of accuracy and confidence, respectively.
  3. Bold italics indicate statistical significance.
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