Radiation Oncology

Table 5 Planned dose of PRV-coronary artery in five plans $(\bar{x} \pm d)$

From: A comparative dosimetric study for treating left-sided breast cancer for small breast size using five different radiotherapy techniques: conventional tangential field, filed-in-filed, Tangential-IMRT, Multi-beam IMRT and VMAT

Parameters	TW	FIF	T-IMRT	7-IMRT	VMAT
D_mean(Gy)	19.4±10.9^A	15.5±10.2^A	8.9±5.2^B	9.9±4.7^B	11.0±4.6^B
V₅ (%)	63.9±26.9^A	56.8±26.8^Aa	46.2±21.9^B	66.2±28.2^A	82.0±23.3^Ab
V₁₀ (%)	52.0±28.3^A	42.4±24.6^Ba	25.6±17.8^Bb	28.6±18.3^Bb	35.2±20.7^B
V₂₀ (%)	40.9±27.1^A	31.2±26.6^A	12.4±14.6^B	11.9±14.5^B	12.9±14.3^B
V₃₀ (%)	32.2±25.5^A	23.5±25.0^A	6.4±10.6^B	5.5±9.9^B	4.5±8.7^B
V₄₀ (%)	22.3±33.0^A	14.3±19.9^A	2.6±5.9^B	1.3±4.0^B	1.5±6.2^B

A had significant difference with B (p<0.05), and, a had significant difference with b (p<0.05). Otherwise the difference was not significant between any two (p>0.05).

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ISSN: 1748-717X

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