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Yuan Xu, PhD

KHS 331D
Ryerson University
350 Victoria Street
Toronto, Ontario M5B 2K3
416-979-5000 x7847
yxu@ryerson.ca

Specialization

  • Ultrasound imaging
  • Novel imaging reconstruction algorithms
  • Multi-wave imaging methods
  • Medical imaging

Research

  • Methods to reduce the hardware complexity of 3D Ultrasound synthetic aperture imaging
  • Speckle reduction in synthetic aperture imaging
  • Speed of sound estimation in Synthetic Transmit Aperture imaging

Recent Publications

  1. D. Monjazebi, Y. Xu, “Phase-aberration Delay Estimation in Synthetic Transmit Aperture Diagnostic Ultrasound,” 2019 IEEE international Ultrasonics symposium, in Scotland, 2019.
  2. Y. Li, M. Kolios, Y. Xu, “Large-pitch Synthetic Transmit Aperture Imaging: A Feasibility Study,” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, under revision, 2019.
  3. J Liu, A Teymurazyan , Y. Xu, G Pang “Development of a novel high quantum efficiency MV x-ray detector for image-guided radiotherapy: A feasibility study,” Medical Physics, in press, Nov. 2019.
  4. P. Gong, M. Kolios, Y. Xu, “Pseudo-Inverse (PI) Decoding process in Delay-encoded Synthetic Transmit Aperture (DE-STA) Imaging,” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 63(9) 1372 - 1379, 2016.
  5. P. Gong, M. Kolios, Y. Xu, “Delay-encoded Transmission in Synthetic Aperture Imaging (DE-SAI),” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 62(10) 1745 - 1756, 2015.
  6. Shaswary, Elyas; Tavakkoli, Jahan; Y. Xu, “A New Algorithm for Time-Delay Estimation in Ultrasonic Echo Signals and Its Application in Ultrasound Elastography,” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 62(1) 236-241, 2015.
  7. K. Wawrzyn, V. Demidov, B. Vuong, M. K. Harduar, C. Sun, V. X. D. Yang, O. Doganay, V. Toronov, and Y. Xu, “Imaging the electro-kinetic responses of biological tissues with OCT”, Optics Letters, Vol. 38, Issue 14, pp. 2572-2574 (2013).
  8. Z. Liu, L. Liu, Y. Xu, and L.-H. Wang, “Transcranial thermoacoustic tomography: a comparison of two imaging algorithms,” IEEE Transactions on Medical Imaging, 32 (2), 289-294 (2013).
  9. O. Doganay, Y. Xu, “Reversibility of Electric-Field Induced Mechanical Changes (EIMC) in Soft Tissues,” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 59(3) 552-556, 2012.
  10. O. Doganay, Y. Xu, “Electric-field induced strain in biological tissues,” Journal of the Acoustical Society of America Express Letters, 128(5), EL261 – 267, 2010.
  11. E. Renzhiglova, V. Ivantsiv, Y. Xu, “Difference Frequency Magneto-Acousto-Electrical Tomography (DF-MAET): application of ultrasound-induced radiation force to imaging electrical current density”, IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 57(11) 2391-2401, 2010.
  12. S. Haider, A. Hrbek, Y. Xu, “Magneto-acousto-electrical tomography: a potential method for imaging current density and electrical impedance,” Physiological Measurement, 29(6):S41-50 (2008).
  13. X. Li, Y. Xu, and B. He: “Imaging Electrical Impedance from Acoustic Measurements by Means of Magnetoacoustic Tomography with Magnetic Induction (MAT-MI),” IEEE Transactions on Biomedical Engineering, 54(2) 323–330 (2007).
  14. X. Li, Y. Xu, B. He, “Magnetoacoustic tomography with magnetic induction for imaging electrical impedance of biological tissue,” JOURNAL OF APPLIED PHYSICS 99 (6): Art. No. 066112 (2006).
  15. Y. Xu and L.-H. V. Wang, “Rhesus monkey brain imaging through intact skull with thermoacoustic tomography,” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 53(3) 542–548 (2006).
  16. Y. Xu and B. He, “Magnetoacoustic tomography with magnetic induction,” Phys. Med. Bio. 50 (21), 5175–5187 (2005).
  17. X. Jin, Y. Xu, and et al., “Preliminary results of visualizing HIFU-induced lesions in soft tissue with thermoacoustic tomography,” Medical Physics 32 (1): 5–11 (2005).
  18. Y. Xu and L.-H. V. Wang, “Time reversal and its application to tomography with diffracting sources,” Physical Review Letters, 92 (3), 033902 (2004).
  19. Y. Xu and L.-H. V. Wang, “Reconstructions in limited-view thermoacoustic tomography,” Medical Physics, 31 (4), 724–733 (2004).
  20. Y. Xu and L.-H. Wang, “Effects of acoustic heterogeneity in breast thermoacoustic tomography,” IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 50 (9), 1134–1146 (2003).
  21. M. Xu, Y. Xu, and L.-H. Wang, “Thermoacoustic imaging in biological tissues: time-domain reconstruction algorithms,” IEEE Transactions on Biomedical Engineering, 50 (9), 1086–1099 (2003).
  22. Y. Xu, D. Feng, and L. Wang, “Exact frequency-domain reconstruction for thermoacoustic tomography: I. Planar geometry,” IEEE Transactions on Medical Imaging, 21 (7), 823–828 (2002).
  23. Y. Xu, M. Xu, and L. Wang, “Exact frequency-domain reconstruction for thermoacoustic tomography: II. Cylindrical geometry,” IEEE Transactions on Medical Imaging, 21 (7), 829–833 (2002).
  24. X. Wang, Y. Xu, M. Xu, S. Yokoo, E. S. Fry and L.-H. Wang “Photoacoustic tomography of biological tissues with high cross-section resolution: Reconstruction and experiment,” Medical Physics, 29 (12), 2799–2805 (2002).