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Table 2 Comparison among PM and both 3D dosimetry methods (LDM and DPK) in terms of mean absorbed dose delivered to target and whole normal liver: Bland Altman analysis, Pearson’s correlation, 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
\( \Delta {D}_{Mean}^{VOI} \) (Gy) Bias [95%CI] (Gy) ρ ρc
Target normal liver
 PM-DPK 4.7 − 4.8; 14.2 0.99 0.94
 PM-LDM 4.2 − 4.9; 13.2 0.99 0.95
 LDM-DPK 0.6 − 0.1; 1.3 1.00 1.00
Whole normal liver
 PM-DPK 1.1 − 0.1; 2.4 1.00 0.99
 PM-LDM 0.7 − 0.3; 1.7 1.00 1.00
 LDM-DPK 0.4 0.0; 0.8 1.00 1.00