Aberration correction in pulse-echo medical ultrasound imaging
Speaker: Svein-Erik Måsøy (Norwegian University of Science and Technology)
Aberrations caused by varying speed of sound in tissue, mainly in the body wall composed of skin, fat, and muscles, reduce image quality in medical ultrasound imaging. The phenomenon can be compared to smearing a thin layer of vaseline on a camera lens; no matter how well you try to focus the image it remains a bit blurred. Trying to compensate for this effect is referred to as aberration correction. The phenomenon is very similar to what happens in optics when light encounters atmospheric turbulence and aberration correction in optics and medical ultrasound have a lot in common. In this presentation I will go through the background of aberrations in medical imaging, how image quality is reduced and how this may be compensated for.
Location: RICAM, SP2 416-1