Figure 4: Percentage of injected dose in blood and organs of mice following experiments. (a) Distribution in blood and organs at 15 minutes. Mice were injected with microbubbles while either a magnet (n=3) or nonmagnetic bar (n=3) was positioned close to the tumour. (b-c) Comparison of percentage dose in blood and liver at 10 and 15 minutes shows approximately linear behaviour (R-squared values 0.999 and 0.903 respectively). Mean  standard deviation of all 6 mice is shown. Initial doses of 100% and 0% were assumed for blood and liver respectively. 