Sonodynamic Therapy in the Treatment of Carotid Atherosclerosis

Sinoporphyrin sodium (DVDMS) as sonosensitizer, is dissolved in 0.9% sodium solution for following skin test and intravenous injection. 0.01mg/ml DVDMS solution (0.1ml) is prepared for skin test followed by 0.04 mg/ml DVDMS solution intravenous injection (0.2mg/kg).The target atherosclerotic lesions are marked on the corresponding skin with ultrasound guidance and underwent ultrasound exposure after 4 hours incubation. The therapeutic ultrasonic transducer is fixed to the marked skin site for 15min of each lesion. Ultrasound parameters included intensity of 1.6W/cm2 for carotid lesions, resonance frequency: 1.0 MHz and duty factor: 30%.