. Author manuscript; available in PMC: 2024 Jun 1.

Published in final edited form as: Med Phys. 2023 Mar 3;50(6):3842–3851. doi: 10.1002/mp.16295

Table 1.

Definitions for dose homogeneity, dose conformity, dose spillage, and mean dose.

	Homogeneity Index	Conformity Index	Dose Spillage	Mean Dose (μ)
Formula	$H I = 100 \times \frac{D_{5} - D_{95}}{D_{p}}$	$C I = \frac{{(T V_{95 D_{p}})}^{2}}{T V \times V_{95 D_{p}}}$	$R 50 = \frac{V_{50 D_{p}}}{T V}$ $R 90 = \frac{V_{90 D_{p}}}{T V}$	${\bar{d}}_{s} = \frac{1}{n_{s}} \sum_{i ϵ s}^{n_{s}} d_{i}$