의공학초음파연구실

Ultrasound is routinely used for medical diagnosis and treatment in the current medical practice thanks to its safety (non-invasive and radiation-free attributes), real-time imaging capability, cost-effectiveness, and ability to achieve high spatial resolution in deep tissues. Nevertheless, it is not without limitations, including a restricted field-of-view and a considerable reliance on operator expertise. Our team is currently engaged in the development of a large-aperture ultrasound tomography system. We aim to deliver high-resolution whole-volume imaging of human organs and body structures in a non-invasive manner, offering significant potential for advancing medical imaging technology. In addition to visualizing morphological information, ultrasound is capable of providing valuable functional insights such as heartbeat patterns, blood flow dynamics, and tissue elasticity. Our focus lies in investigating ultrafast Doppler imaging technology, utilizing plane wave ultrasound with acquisition rates reaching several kilohertz. This cutting-edge methodology enables the detection of fine blood flow information previously unobservable through conventional imaging techniques. Furthermore, we are exploring the integration of multi-modal imaging techniques into ultrasound platforms. One notable example is photoacoustic imaging, which offers complementary functional information such as blood oxygen saturation and total hemoglobin concentration. These parameters are derived from the inherent optical absorption contrast within biological tissues, enhancing our diagnostic capabilities. We develop advanced ultrasound-based techniques for medical imaging, stimulation, and treatment, aiming to deliver safe and precise diagnostic/therapeutic ultrasound solutions.