J. Powers 1, R. Seip 2, W. Shi 2
1 Philips Ultrasound, Bothell – WA, USA, 
2 Philips Research, Briarcliff – NY, USA

For many years existing ultrasound devices have been used for sonothrombolysis (STL) research in-vitro, in animals, and even in humans. These have included laboratory transducers, physiotherapy devices, and diagnostic ultrasound systems.