而提高精确性之后就能使用更准确的放射剂量，并更好的对肿瘤进行定位。
The heightened accuracy allows for a more precise radiation dose and a more targeted area for treatment of the tumor.
对MRI而言，由于存在着影像扭曲的问题，因此影响了SRT定位的精确性，并进一步影响了剂量分布的准确性。
One of the major disadvantages of MRI is its image distortion, which affects the accuracy of the localization of SRT and the veracity of the dose distribution.
MRI用于术前定位、放射剂量的设定与调整。
MRI was used for pre surgical localization, designing and modification of radiation dosage.
应用推荐