The specific effects of radiosurgery on brain tumor tissue are not well understood. We review several approaches that have been used to address this issue. Correlating the radiobiology of radiosurgery with the radioclinical outcome may help to understand these tissue changes. In vivo imaging investigations are usually performed with MRI, but the use of functional and metabolic imaging, such MR ...

Introduction :Today there is general awareness of the potential damage to the heart in left- sided (more than in rightsided) breast cancer radiotherapy.     Material & Method: Historical changes in tumor and heart doses are presented here along with the impact of different RT techniques and volumes. Results: Individual and pharm...