[Recurrence pattern and influencing factors of intensity-modulated radiotherapy for cervical cancer].

With the rapid development of precise radiotherapy technology, the use of intensity-modulated radiation therapy (IMRT) in gynecological malignant tumor has been gradually increased. IMRT could result in a good local control rate as well as superior clinical outcome in patients with cervical cancer after radical radiotherapy. The recurrence pattern of radiotherapy includes in-field recurrence, out-of-field and combined failure. The recurrence pattern of radical IMRT for cervical cancer is mainly out-of-field recurrence. Out-of-field recurrence may be related to inadequate imaging evaluation before treatment. In-field recurrence may be related to insufficient radiation dose in target area and differences of tumor sensitivity.