Increasing Patient Comfort in Palliative Radiotherapy With a Newly Developed Mattress - A Prospective Clinical Study

The goal of this research is to determine if a new radiotherapy mattress is more comfortable for patients than the standard mattress. The table of the CT scanner and the radiation machine is flat and hard. To increase comfort during the CT scan and radiation dose delivery, the investigators have recently developed a new mattress (RTComfort). This research aims to find out if the new mattress is more comfortable for patients than the standard matt and to learn how radiotherapy mattresses can be further improved. Patients who participate in the research, will be asked to try both the standard mattress and the new mattress during the CT scan appointment. This will take about 5 minutes (one minute each). Patients will then be asked which mattress was most comfortable and if they experience any pain while lying on the mattress. Patients can choose which mattress will be used for the CT scan and treatment. Both mattresses are approved and safe for treatment. If patients participate in the research, it means the investigators will collect and use some of their (medical) data. Patients will not have any direct benefits from participating in this research, except that they can choose which mattress they want to lie on. Additionally, participation can help us gain more knowledge to make radiotherapy treatment more comfortable. Participation in the research will not affect the treatment. Participants will receive the normal treatment and check-ups for their condition. The drawback of participating is that the investigators will ask patients to try both mattresses, which will take about 5 minutes.