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Table 3 Comparison among both 3D dosimetry methods (LDM and DPK) in terms of D5, D25, D50, D70, and D95 delivered to target normal liver, whole normal liver, and individual tumors: Bland Altman analysis and Lin concordance coefficients

From: Impact of the dosimetry approach on the resulting 90Y radioembolization planned absorbed doses based on 99mTc-MAA SPECT-CT: is there agreement between dosimetry methods?

  Bland-Altman Correlation and concordance coefficients
∆D (Gy) Bias [95%CI] (Gy) Points beyond ± 2 SD (%) ρ ρc
  Target normal liver
 D5 0.3 − 0.9; 0.4 7.1 0.999 0.999
 D25 − 0.2 − 0.8; 0.4 7.1 1.000 1.000
 D50 0.2 − 0.8; 1.1 0.0 1.000 1.000
 D70 0.4 − 1.0; 1.9 0.0 1.000 0.999
 D95 2.3 0.0; 5.9 7.1 1.000 0.996
  Whole normal liver
 D5 0.1 − 0.4; 0.3 7.1 0.999 0.998
 D25 − 0.1 − 0.5; 0.2 7.1 1.000 1.000
 D50 − 0.1 − 0.9; 0.7 7.1 1.000 1.000
 D70 0.1 − 1.2; 1.3 0.0 1.000 1.000
 D95 2.5 0.1; 4.9 7.1 1.000 0.996
  Individual tumors
 D5 − 0.3 − 1.6; 1.0 5.0 0.999 0.999
 D25 − 0.1 − 1.7; 1.8 4.0 0.999 0.999
 D50 0.4 − 1.7; 2.5 6.0 1.000 0.999
 D70 1.1 − 2.3; 4.5 4.0 1.000 0.999
 D95 3.1 − 9.0; 15.2 2.0 0.999 0.995