The present invention relates to the field of medical imaging and therapy of nerve lesions that are detrimental to the body. The method incorporates both identifying imaging for localization and treatment with a radiation source. Clear images of individual nerve structures are fused to conventional images for accurate treatment planning with noninvasive ablating beams. This results in increased radiation dose in the lesion. Furthermore, neither endovascular intervention nor additional internally introduced reference points are needed. More specifically this invention relates to a method for optimizing delivery of ablating beams to a lesion compared to the surrounding normal tissues without invasive techniques.