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Table 1 Bland and Altman analysis: mean absolute and relative differences, with limits of agreement for the three segmentation methods

From: Automatic delineation and quantification of pulmonary vascular obstruction index in patients with pulmonary embolism using Perfusion SPECT-CT: a simulation study

  MaxTh ZTh RelDiffTh
  Absolute difference Relative difference Absolute difference Relative difference Absolute difference Relative difference
Mean difference − 1% 3% − 7% 0% − 4% − 12%
Limits of agreement [− 9%; 8%] [− 75%; 81%] [- − 25%; 12%] [− 120%; 120%] [− 14%; 6%] [− 40%; 16%]