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Proton Therapy

What comes along to the patient?

Further information concerning:

Clinical stay at the Charité eye infirmary

In the course of the consultation hours, the ophthalmologist makes a choice for the best therapy option and decides whether further hospital treatment is needed. After confirmation of the tumour diagnosis, its location and dimensions have to be determined.

For this purpose, small tantalum marker clips are sutured to the sclera of the patient's eye by a surgeon. He then measures shape and location of the tumour in relation to the marker clips. These clips will in general cause no trouble to the patient and will therefore not been removed after proton therapy.

The performance of irradiation of the human eye requires a high-precision patient alignment and exact data of the inner eye structure. For this, several imaging techniques like computed tomography and magnetic resonance imaging are provided. Tomography serves mainly for a save and careful treatment planning, whereas the marker clips guarantee a reliable and precise patient positioning according to the individual treatment plan.

nuclear spin image eye - enlarged view

Magnetic resonance imaging of the eye. For tissue differentiation and treatment planning, high-resolution imaging is applied.

preparation of mask - enlarged view

Support frame for patient positioning.  To put the head of the patient in a fixed position that is suitable for therapy, an individual combination of mask and bite block is manufactured.

final rehearsal for radiation - enlarged view

Simulation of the treatment. Patient positioning has to be tested before therapy can start.

Mask for proton radiation - enlarged view

Bestrahlungssitzungen. Während der Therapiewoche sind
alle Apparaturen zur Erzeugung, Führung, und Aufbereitung
des Protonenstrahls in Betrieb. Das schnell rotierende Modulatorrad
im Bild sorgt für die korrekte Dosisbelegung des Tumors je nach Form
und Gewebetiefe.