A new surgical but less invasive treatment of central brain tumours Preliminary report.

Our goal was always to reduce the risks of anaesthesia and surgery to a minimum. Therefore we introduced the interstitial thermotherapy of central brain tumours. The center of the tumour is calculated with the help of computer tomography, then we reach the target stereotactically. The last step includes the insertion of a Nd:YAG laser fiber and the denaturation of the tumour under real time magnetic resonance control. The whole procedure is carried out in local anaesthesia. Methods and first clinical results are demonstrated.