Figure 5
Microbeam radiation therapy irradiation modes. Brain tumor irradiations were performed using empirical irradiation fields [vertical microbeams, 10 mm × 10 mm × 10 mm (a)], using conformal MRT [Conf MRT (b)] where beam height and width were adapted to tumor size, and interspersed MRT [Int MRT (c)] where horizontal microbeams were interlaced at the tumor site and the irradiation field fitted to the tumor volume. The table (d) shows the averages of irradiation field sizes and their effects on brain tumor bearing rat median survival time (MST) and increase in life span (ILS). |