A5076326025- Ultrasound Imaging and Elastography
- Photoacoustic and Ultrasonic Imaging
- Prosthetics and Rehabilitation Robotics
- Muscle activation and electromyography studies
- Advanced Sensor and Energy Harvesting Materials
- Ultrasonics and Acoustic Wave Propagation
- Mosquito-borne diseases and control
- Tendon Structure and Treatment
- Ultrasound in Clinical Applications
- Viral Infections and Vectors
- Cardiovascular Health and Disease Prevention
- Electrical and Bioimpedance Tomography
- Optical Coherence Tomography Applications
- Lower Extremity Biomechanics and Pathologies
- Ultrasound and Hyperthermia Applications
- Elasticity and Material Modeling
National Cheng Kung University
2022-2025
Robotic prostheses and powered exoskeletons are novel assistive robotic devices for modern medicine. Muscle activity sensing plays an important role in controlling robotics devices. Most measure the surface electromyography (sEMG) signal myoelectric control. However, sEMG is integrated from muscle activities. It difficult to sense movements specific small regions, particularly at different depths. Alternatively, traditional ultrasound imaging has recently been proposed monitor due its...
Shear wave elastography (SWE) is a quantitative imaging method that could be used for clinical assessment of musculoskeletal stiffness, particularly in disease diagnosis and rehabilitation evaluation. However, the elastic anisotropy skeletal muscle leads to uncertainties shear velocity (SWV) measurements SWE because SWV varies with fiber orientation. Therefore, many studies have conducted 360° rotational determine muscle; however, extended data acquisition time this approach limits its...
Abstract Although the relationships of cerebrovascular hemodynamic dysfunction with neurodegenerative diseases remain unclear, many studies have indicated that poor cerebral perfusion accelerates progression diseases, such as Alzheimer's disease (AD). Small animal models are widely used in AD research. However, providing an imaging modality a high spatiotemporal resolution and sufficiently large field view to assess hemodynamics vivo remains challenge. The present study proposes novel...
Ultrasound (US) shear wave elasticity imaging (SWEI) is a mature technique for diagnosing the of isotropic tissues. However, anisotropic tissues, such as muscle and tendon, cannot be diagnosed correctly using SWEI because velocity (SWV) varies with tissue fiber orientations. Recently, has been studied measuring properties muscles by rotating transducer; however, this difficult clinical practice.In study, novel dual-direction (DDSWI) was proposed visualizing mechanical anisotropy without...
People who suffer from the amputation of limbs or with mobility impairment due to methodological disorder sometimes require assistive robotics (AR), such as robotic prostheses and exoskeletons, function satisfactorily productively in daily life. Dynamic measurements muscle voluntary activities are widely used control AR, sensors AR should be non-invasive, effective, wearable. Ultrasound (US) imaging is an effective method for measuring activity. Nevertheless, conventional US transducers...
High-resolution ultrasound shear wave elastography has been used to determine the mechanical properties of hand tendons. However, because fiber orientation, tendons have anisotropic properties; this results in differences velocity (SWV) between scanning cross sections. Rotating transducers can be achieve full-angle scanning. technique is inconvenient implement clinical settings. Therefore, study, high-frequency (HFUS) dual-direction imaging (DDSWI) based on two external vibrators was create...
The shoulder is the most mobile joint in human body, thus requiring intricate coordination of adjacent muscles. Patients suffered from rotator cuff muscle injuries have several typical symptoms including pain and difficulty raising arm, reducing work efficiency compromising quality life. Ultrasound has been used widely for soft tissue imaging as well ultrasound elastography was introduced examination dilemma treating degenerative tears. However, performed under a static condition. Providing...
Abstract Background The skin is the largest organ of human body and serves distinct functions in protecting body. viscoelastic properties play a key role supporting skin‐healing process, also it may be changed due to some diseases. Propose In this study, high‐frequency ultrasound (HFUS) elastography based on Lamb wave model was used noninvasively assess anisotropy skin. Method Elastic waves were generated through an external vibrator, propagation velocity measured 40 MHz ultrafast HFUS...
Ultrasound elastography based on shear wave imaging has been widely used in clinical applications. However, the elasticity of anisotropic tissues, such as muscle and tendon, cannot be measured accurately using because velocity (SWV) varies with tissue fiber orientations. Recently, some researchers reported that properties muscles can estimated by rotating transducer for imaging. this approach may difficult practices relatively long data acquisition time misalignment errors associated...
Objective: This study retrospectively analyzed an outbreak of dengue fever in Puyang Henan province 2019, order to find the sources infection. Methods: Dengue virus IgM/IgG and NS1 antigen were tested by colloidal gold method. E gene was amplified PCR. MegaX used for sequences alignment construct evolutionary distance trees. Results: After clinical laboratory confirmation, there 81 cases fever, 17 which imported case who local farmers worked Combadia Thailand, 64 indigenous cases. The...