TABLE 4

Validation of 2 Attenuation Correction Methods Under Uniform Aerosol Distribution by Comparing True Values from Table 3

ACFLung regionCentral region
Correction method of (26) using Equation 3*2.05 ± 0.08NA†
Validation using Equation 22.99 ± 0.134.29 ± 0.52
Broad-beam correction using Equation 3‡2.61 ± 0.263.30 ± 0.33
Validation using Equation 42.20 ± 0.112.90 ± 0.30

  • ↵* μ = 0.151 cm−1 used for water/tissue.

  • ↵† Proposed method had no correction of central region (26). NA = not applicable.

  • ↵‡ μ = 0.12 cm−1 used for water/tissue.

  • Values are mean ± SD.