Ultrasound has numerous applications in industry, where it can be used to detect defects in materials (cracks, etc.) without damaging them. Ultrasound also propagates through organic tissue, and is therefore widely used in medical imaging diagnostics. Finally, the focusing of ultrasound beams is used to treat calculi, and is more recently being considered to treat diseased tissue (tumors,..) or local interaction with cell There are many applications of ultrasounds industry where there are used to detect cracks and defaults in material without damaging them. Moreover, ultrasounds propagate in body tissues and are therefore popular imagery based diagnostic tools. Additionally, focused ultrasound beams are also used for treatments (kidney stones) and more recently disseased tissues (tumors..) or local interactions with cell membranes. The advantage with respect to radiotherapy lies in its limited intrusiveness. This course offers a discovery of ultrasounds and the above-mentioned applications. From nonlinear propagation in biological tissues to the analysis of simple ultrasound images, this lecture covers many aspects of the underlying physics and technical challenges and offers a first approach to ultrasound diagnostics.
• Propagation in biological tissues, inhomogeneous media, diffusion, damping, nonliearity
• Non-destructive testing and applications
• Focused wave therapy
• Ultrasound transducers
• Imagery diagnostics, fast imagery, Doppler
2 lab classes (2h each) • Linear on nonlinear wave simulation HIFU • Ultrasound mode B, Doppler