Table 3 Retrieval accuracy of the content-based image retrieval (CBIR) system.

From: Evaluation of retrieval accuracy and visual similarity in content-based image retrieval of chest CT for obstructive lung disease

Rate of retrieval

Total (n = 50)

Presence of the same pair in retrieved cases (%)

Top 1

20 (40.0, 95%CI 24.4–61.8)

Top 1–3

30 (60.0, 95%CI 40.5–85.7)

Top 1–5

33 (66.0, 95%CI 45.4–92.7)

  1. Data are the numbers of patients, with percentages in parentheses.
  2. CI, confidence interval.
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