Radiation Oncology

Table 3 Dose comparison of the PRV-left lung between the 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)	8.6±2.6^A	8.2±2.4^A	6.8±2.0^Ba	9.3±3.8^A	10.1±2.5^Bb
V₅ (%)	25.9±6.6^A	24.6±6.1^A	23.4±5.6^A	49.4±9.5^B	50.3±13.3^B
V₁₀ (%)	20.9±5.9^A	19.1±5.5^A	17.7±4.9^A	26.8±6.2^B	29.9±8.0^B
V₂₀ (%)	16.9±5.4^Ab	15.0±5.0^A	12.9±4.2^Aa	14.6±4.5^A	16.4±4.8^Ab
V₃₀ (%)	14.2±5.1^B	12.2±4.6^A	9.6±3.9^A	9.6±3.9^A	10.3±3.4^A
V₄₀ (%)	10.9±4.6^A	8.7±3.9^A	6.3±3.2^B	4.7±2.5^B	5.1±2.4^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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