A study on improvement of lateral resolution in synthetic aperture super-resolution ultrasound imaging

Ryoya Kozai; Jing Zhu; Norio Tagawa

doi:10.1117/12.2521619

22 March 2019 A study on improvement of lateral resolution in synthetic aperture super-resolution ultrasound imaging

Ryoya Kozai, Jing Zhu, Norio Tagawa

Proceedings Volume 11049, International Workshop on Advanced Image Technology (IWAIT) 2019; 1104939 (2019) https://doi.org/10.1117/12.2521619
Event: 2019 Joint International Workshop on Advanced Image Technology (IWAIT) and International Forum on Medical Imaging in Asia (IFMIA), 2019, Singapore, Singapore

Abstract

Ultrasound imaging is applied to various fields because it is noninvasive and real-time imaging is possible. However, in the field of diagnosis imaging, ultrasound imaging is inferior in resolution to other modalities, so researches to improve resolution are actively conducted. We proposed a method called the SCM (Super resolution FM-Chirp correlation Method) that improves the range resolution based on frequency sweep. In order to improve the frame rate, the SCM was extended to the SA-SCM (Synthetic Aperture-SCM) by incorporating synthetic aperture beamforming using divergent waves in the SCM. However, these methods improve only the range resolution. Therefore, in this study, we aim at high lateral resolution by using F-DMAS (Filtered-Delay Multiply and Sum) of analytic signal representation as the beamforming method.

Citation Download Citation

Ryoya Kozai, Jing Zhu, and Norio Tagawa "A study on improvement of lateral resolution in synthetic aperture super-resolution ultrasound imaging", Proc. SPIE 11049, International Workshop on Advanced Image Technology (IWAIT) 2019, 1104939 (22 March 2019); https://doi.org/10.1117/12.2521619

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