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Beyond the acoustic diffraction limit: Super-resolution Ultrasound Imaging

Beyond the acoustic diffraction limit: Super-resolution Ultrasound Imaging

강사 : Jaesok Yu|강의수 : 2|강의기간 : 2018-10-31 ~ 2018-11-01|최근 업데이트 : 2018-11-02 16:55:29

The recently introduced super-resolution imaging technique based on microbubble center localization has shown potential to achieve unprecedented high spatial resolution beyond the acoustic diffraction limit. However, a major drawback of the current super-resolution imaging approach is low temporal resolution because it requires a large number of imaging frames. In this talk, a new imaging sequence and signal processing approach for super-resolution ultrasound imaging are presented to improve temporal resolution by employing deconvolution and spatio-temporal-interframe-correlation based data acquisition and motion compensation. The proposed method not only identifies a tiny vessel with a diameter of 41 μm, 5 times higher spatial resolution than the acoustic diffraction limit at 7.7 MHz, but also significantly improves temporal resolution that allows for imaging vessels over cardiac motion.

 

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