Table IV.

Lung tissue SUV of the no radiation pneumonitis group prior to and following radiotherapy.

SUV of lung tissue at different exposures	Prior to radiotherapy	Standard deviation	Following radiotherapy	Standard deviation	P-value
≥60 Gy	0.67	0.038	1.02	0.246	0.029
35 to ≤59.9 Gy	0.46	0.023	0.76	0.125	0.018
15 to ≤34.9 Gy	0.42	0.018	0.61	0.112	1.084
5 to ≤14.9 Gy	0.42	0.015	0.52	0.048	3.052
≤5 Gy	0.38	0.016	0.42	0.032	0.059

Exposure doses of different lung tissues were calculated by the isodose curve. SUV, standardized uptake value.