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Table 1 Target and normal tissue dosimetric definitions and the average volumes for 10 patients in this study.

From: The impact of dose calculation algorithms on partial and whole breast radiation treatment plans

Target & Normal Tissue

Average Volume [cm3]

Statistic Recorded

Planning Target Volume (PTV)

215.0

Relative volume covered by 95% of the prescription dose

Dose Evaluation Volume (DEV)

149.3

Relative volume covered by 95% of the prescription dose

Ipsilateral Breast (IPS-BR)

1094.5

Relative volume covered by 95% of the prescription dose

Ipsilateral Lung (IPS-LUNG)

1368.1

Relative volume receiving 10% of the prescription dose

Heart

537.4

Percent of prescription dose delivered to 10% of the volume

Contra-lateral lung (CON-LUNG)

1182.0

Percent of prescription dose delivered to 5% of the volume

Contra-lateral breast (CON-BR)

525.2

Maximum point dose as a percent of the prescription dose