Lei Sun

Summary

Affiliation: The Hong Kong Polytechnic University
Country: China

Publications

  1. ncbi request reprint A high-frame rate high-frequency ultrasonic system for cardiac imaging in mice
    Lei Sun
    Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1648-55. 2007
  2. doi request reprint A high-frame rate duplex ultrasound biomicroscopy for small animal imaging in vivo
    Lei Sun
    Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Hun, Kowloon, Hong Kong SAR, China
    IEEE Trans Biomed Eng 55:2039-49. 2008
  3. pmc A flexible annular-array imaging platform for micro-ultrasound
    Weibao Qiu
    Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 60:178-86. 2013
  4. doi request reprint A multifunctional, reconfigurable pulse generator for high-frequency ultrasound imaging
    Weibao Qiu
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1558-67. 2012
  5. pmc Ultrasound bio-microscopic image segmentation for evaluation of zebrafish cardiac function
    Xiaowei Zhou
    Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 60:718-26. 2013
  6. pmc An open system for intravascular ultrasound imaging
    Weibao Qiu
    Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 59:2201-9. 2012
  7. doi request reprint An FPGA-based open platform for ultrasound biomicroscopy
    Weibao Qiu
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1432-42. 2012
  8. ncbi request reprint PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application
    Qifa Zhou
    NIH Resource on Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    IEEE Trans Ultrason Ferroelectr Freq Control 54:668-75. 2007
  9. pmc In vivo cardiac imaging of adult zebrafish using high frequency ultrasound (45-75 MHz)
    Lei Sun
    Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    Ultrasound Med Biol 34:31-9. 2008
  10. pmc High-frequency ultrasound Doppler system for biomedical applications with a 30-MHz linear array
    Xiaochen Xu
    NIH Resource on Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    Ultrasound Med Biol 34:638-46. 2008

Collaborators

Detail Information

Publications13

  1. ncbi request reprint A high-frame rate high-frequency ultrasonic system for cardiac imaging in mice
    Lei Sun
    Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1648-55. 2007
    ..In vivo experiments showed that high-frequency ultrasonic imaging at 130 fps is capable of showing a detailed depiction of a beating mouse heart...
  2. doi request reprint A high-frame rate duplex ultrasound biomicroscopy for small animal imaging in vivo
    Lei Sun
    Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Hun, Kowloon, Hong Kong SAR, China
    IEEE Trans Biomed Eng 55:2039-49. 2008
    ..These results showed that the UBM integrated with B-mode and PW Doppler is useful to investigate the pathophysiological mechanism in the cardiovascular studies...
  3. pmc A flexible annular-array imaging platform for micro-ultrasound
    Weibao Qiu
    Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 60:178-86. 2013
    ..2 in the range of 3.8 to 8.7 mm imaging depth. The platform supported more than 25 images per second for real-time image acquisition. The depth-of-field had about 2.5-fold improvement compared to single-element transducer imaging...
  4. doi request reprint A multifunctional, reconfigurable pulse generator for high-frequency ultrasound imaging
    Weibao Qiu
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1558-67. 2012
    ..Testing results show that the unipolar pulse can reach over 165 Vpp with a 6-dB bandwidth of 70 MHz, and the bipolar pulse and arbitrary pulses can reach 150 and 60 Vpp with central frequencies of 60 and 120 MHz, respectively...
  5. pmc Ultrasound bio-microscopic image segmentation for evaluation of zebrafish cardiac function
    Xiaowei Zhou
    Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 60:718-26. 2013
    ..The quantitative evaluation demonstrated that the accuracy of the proposed algorithm is comparable to the manual delineation by experts...
  6. pmc An open system for intravascular ultrasound imaging
    Weibao Qiu
    Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 59:2201-9. 2012
    ..Finally, phantom imaging, in vitro IVUS vessel imaging, and multimodality imaging with photoacoustics were conducted to demonstrate the performance of the open system...
  7. doi request reprint An FPGA-based open platform for ultrasound biomicroscopy
    Weibao Qiu
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1432-42. 2012
    ..Phantom and in vivo imaging experiments were conducted and the results demonstrated good system performance...
  8. ncbi request reprint PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application
    Qifa Zhou
    NIH Resource on Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    IEEE Trans Ultrason Ferroelectr Freq Control 54:668-75. 2007
    ..In vivo high-frequency, pulsed-wave Doppler patterns of blood flow in the posterior portion and in vitro ultrasonic backscatter microscope (UBM) images of the rabbit eye were obtained with the 44-MHz needle transducer...
  9. pmc In vivo cardiac imaging of adult zebrafish using high frequency ultrasound (45-75 MHz)
    Lei Sun
    Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    Ultrasound Med Biol 34:31-9. 2008
    ..In addition, the detection of E-flow and A-flow during the ventricular filling and the appearance of diastolic flow reversal at bulbus arteriosus suggested the functional similarity of zebrafish heart to that of higher vertebrates...
  10. pmc High-frequency ultrasound Doppler system for biomedical applications with a 30-MHz linear array
    Xiaochen Xu
    NIH Resource on Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
    Ultrasound Med Biol 34:638-46. 2008
    ..These results demonstrated that this system may become an indispensable part of the current HF array-based imaging systems for small animal studies...
  11. ncbi request reprint Determining the acoustic properties of the lens using a high-frequency ultrasonic needle transducer
    Chih Chung Huang
    National Institutes of Health Resource on Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
    Ultrasound Med Biol 33:1971-7. 2007
    ..Finally, the data obtained demonstrate that regional variations in the acoustic properties of lenses corresponding to the hardness of different types of cataract can be detected sensitively by a needle transducer...
  12. ncbi request reprint Computer-assisted auto-frame navigation system for distal locking of tibial intramedullary nails: a preliminary report on clinical application
    Jun qiang Wang
    Department of Orthopaedics and Traumatology, Jishuitan Hospital, Beijing 100035, China
    Chin J Traumatol 9:138-45. 2006
    ..To evaluate the clinical feasibility and effect of the computer-assisted auto-frame navigation system for distal locking of tibial intramedullary nails...
  13. ncbi request reprint [Design and experimental study of computer-assisted orthopaedic system for distal locking of intramedullary nails]
    Jun qiang Wang
    Department of Orthopaedics and Traumatology, Jishuitan Hospital, Beijing 100035, China
    Zhonghua Wai Ke Za Zhi 42:1165-9. 2004
    ..To test the safety and accuracy of the computer-assisted orthopaedic system for distal locking of intramedullary nails and apply it to internal fixation with intramedullary nails in the lower limb...