Clinical outcomes of several IMRT techniques for patients with head and neck cancer: A propensity score weighted analysis

Helical Tomotherapy (HT) and Volumetric-modulated Arc Therapy RapidArc (RapidArc) are two different IMRT techniques used to treat patients with head and neck cancer. In this study, we have prospectively compared their efficacy and toxicity. After inverse probability of treatment weighting (IPTW), loco-regional control and cancer specific survival rates at 18 months were significantly better in the Tomotherapy® group. No significant difference was shown on progression-free or overall survival.

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