To develop and validate a novel scoring system for predicting the risk of uterine perforation during brachytherapy (BT) in cervical cancer patients and to stratify patients based on this score to guide the use of ultrasound guidance during BT.

中文翻译：

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开发和验证一种新型评分系统，用于预测宫颈癌腔内近距离放射治疗期间子宫穿孔的风险。

开发和验证一种新型评分系统，用于预测宫颈癌患者近距离放射治疗 (BT) 期间子宫穿孔的风险，并根据该评分对患者进行分层，以指导 BT 期间超声引导的使用。