A Displacement Estimated Method for Real Time Tissue Ultrasound Elastography

As an important means of medical imaging, elastic imaging is indispensable part mobile telemedicine. Ultrasound elastography has become a research hotspot because it can accurately measure soft tissue lesions. Displacement estimation the most step in ultrasound elastography. At present, phase zero search method accurate and fast displacement method. However, when exceeds 1/4 wavelength, invalid. The accuracy block matching not high, but suitable for large displacement, so overcome this shortcoming. It worth noting that quality-guided good robustness under complex mutation conditions. provide prior knowledge to increase phase-zero So we propose novel real time elastography, which combines experimental results show more accurate, faster robust than other methods.