Consultation, virtual simulation, multidisciplinary meeting

Each patient will be seen in consultation by the radiation oncologist to collect all the clinical, radiological and histological information and then present the case in multidisciplinary meeting to validate or not the indication for proton therapy.

The case can be discussed in a multidisciplinary meeting before the consultation with the radiation therapist to speed up procedures and if all the elements of the case are sufficient to make it possible.
Besides obvious clinical indication and prior consultation, a computer simulation of the treatment can be performed to assess the magnitude of the benefit of the proton treatment over a conventional radiotherapy by photons or electrons. Indeed, it may be that conventional treatment is appropriate and that proton therapy is not necessary.

A simulation CT is performed to collect the images on which the zones to treat and to avoid will be delineated. A mask is sometimes used to immobilize head lesions as to always treat them in the same position. For other targets (in the chest or abdomen, for example) we resort to a tattoo the size of a mole. Using these tattoos or marks on the mask, lasers are used to reposition to be able to readjust perfectly on the treatment area by positioning these lasers.

If chemotherapy is associated: A consultation will be held in Nice and / or in the city of origin to prescribe chemotherapy if indicated during radiotherapy.