The goal of this clinical trial is to test the use of surface repositioning alone, without a restraint mask, during radiotherapy sessions for patients with head and neck cancer.
In radiotherapy treatments for head and neck cancer, the use of a mask is recommended for patient immobilization. The mask completely covers the head and shoulders, ensuring reproducible positioning at every session. However, using a mask can be oppressive and anxiety-provoking for patients. At the same time, technological developments have led us to use optical surface camera systems to position and monitor patients in the treatment room. In this way, if a movement exceeding the threshold is detected during a session, the treatment is automatically interrupted. However, despite the use of the mask, movements are still possible underneath, and are not detected by the surface cameras. The study's hypothesis is that the use of surface repositioning alone could guarantee reproducible treatment, as in combination with a thermoformed mask. In addition, eliminating the mask would mean greater comfort and improved quality of life for patients.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Enrollment
40
Firstly, patients are positioned in a vacuum mattress that moulds their head, neck and shoulders for a reference scan. During the treatment sessions, patients are positioned according to the reference scan, using the surface camera system. Once the observed offsets have been applied, the patient's surface is captured. Treatment can then begin, with continuous monitoring of displacements by the surface camera system. Automatic beam interruption is provided during treatment in the event of motion detection exceeding the standard tolerance threshold (\>3 mm). If the use of a thermoformed mask during your treatment prove necessary, for whatever reason, will not result in a halt to the research. Patients receive between 10 and a max of 35 radiotherapy sessions. The follow-up period begins after the last radiotherapy session, and patients are assessed at 4 or 6 weeks and at 3 months by a radiotherapist.
Centre de Lutte contre le Cancer Eugène Marquis
Rennes, Brittany Region, France
RECRUITINGMeasurement patient displacement during surface-guided radiotherapy sessions
Average length of linear translation vector during session (measured by surface cameras) over all sessions performed
Time frame: Through study completion, an average of 1 year
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