Acoustics 1 Article 1 Collateral damage 1 Contrast Media 1 Definity 1 Dose monitoring 1 Dosimetry 1 Fluorocarbons 1 Megavoltage 1 Megavoltage photons 1 Micro-bubble 1 Microbubbles 1 Particle beams 1 Phospholipids 1 Photoelectrons 1 Photon beams 1 Photons 1 Radiotherapy 1 Radiotherapy Dosage 1 SonoVue 1 Sonovue Sulfur Hexafluoride 1 Treatment plans 1 Ultrasonics 1 Ultrasound contrast agent 1 X-Ray 1 acoustics 1 amplitude modulation 1 contrast agent BR1 1 contrast medium 1