. 2021 Sep 30;15:1297. doi: 10.3332/ecancer.2021.1297

Table 1. Treatment plan parameters.

Treatment details	HDRIB to the lower left lip
BT dosage	45.0 Gy to the tumour in nine fractions, 5.00 Gy per fraction. Dose planned to cover the PTV is 90% of 45 Gy = 40.5 Gy total dose in 4.5 Gy per session.EQD2 for 100% = 56 Gy, for 90% is 45 Gy, assuming α/β = 10
Target definition	Gross tumour volume = CTV CTV + 1 cm = PTV PTV volume = 9.18 cm³
Number of catheters	5
Treatment plan parameters	D₉₀ = 4.50 Gy V₁₀₀ = 1.19 cm³ V₁₅₀ = 1.10 cm³ V₂₀₀ = 0.64 cm³
Calculated dosage to organs at risk per session	Lower jaw: 0.7895 Gy Spinal cord: 0 Gy Left eye: 0.2588 Gy Right eye: 0.1200 Gy Thyroid gland: 0 Gy Gingiva: 0.9986 Gy

PTV: planning target volume