How is SRS given? And, what to expect?
Firstly, you will need an initial Computed Tomography (CT) scan. You will be comfortably positioned on the CT table by the Radiation Therapists with stereotactic immobilizing system and associated accessories to maintain your head in a very stable position. This is a painless procedure. You must lie still during CT Simulation so that the position is reproducible and good CT scan quality is obtained.
The CT simulation scan will be complemented with the Magnetic Resonance Imaging (MRI) scans to map your tumour in 3D. A team of Clinical Oncologists and Medical Physicists will use sophisticated computer programmes to define the tumour target and optimize the radiation delivery directly to the tumour while minimizing doses to the normal healthy tissues around the tumour.
On the treatment day, you will be positioned by the Radiation Therapists on the treatment table with exact reproduction of the setup during CT simulation. You are required to lie still and adhere to the instructions given to you by the Radiation Therapists. Your position will be verified by the CT imaging equipped on our treatment system.
The treatment session generally lasts for about 20 minutes to 40minutes, and the procedure is painless. You will be monitored at all times from the operator station through closed circuit televisions (CCTVs) fixed around the treatment room.