[Clinical Application of Equivalent Uniform Dose in Intensity-Modulated Rotational Radiotherapy Based on Eclipse TPS].

The <i>a</i>-value has a significant impact on the, the dose distribution in the target area and the organ at risk, providing a reference for the setting of <i>a</i>-value while using EUD to optimize the intensity modulation plan. The using of EUD optimization method can not only achieve excellent dose distribution in the target area, but also significantly reduce the normal tissue dose and the probability of complications, which has certain clinical application value.