Research Topics
| Changhui LiSummaryAffiliation: Washington University School of Medicine Country: USA Publications
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Detail Information
Publications
Image distortion in thermoacoustic tomography caused by microwave diffractionChanghui Li
Biomedical Engineering Department, Washington University in St Louis, St Louis, Missouri 63130, USA
Phys Rev E Stat Nonlin Soft Matter Phys 77:031923. 2008..Both numerical simulations and phantom experiments demonstrate this phenomenon. A method of partial correction is also provided...
Negative lens concept for photoacoustic tomographyChanghui Li
Optical Imaging Laboratory, Department of Biomedical Engineering, Washington University in St Louis, St Louis, Missouri 63130, USA
Phys Rev E Stat Nonlin Soft Matter Phys 78:021901. 2008..Phantom experiments demonstrate that use of this concept greatly increases the detection region for PAT with high sensitivity...- Effects of acoustic heterogeneities on transcranial brain imaging with microwave-induced thermoacoustic tomographyXing Jin
Department of Biomedical Engineering, Texas A and M University, 3120 TAMU, College Station, Texas 77843 3120, USA
Med Phys 35:3205-14. 2008..This work is important for obtaining good brain images when the thickness of the skull cannot be ignored... - Photoacoustic tomography of water in phantoms and tissueZhun Xu
Washington University, Department of Biomedical Engineering, Optical Imaging Laboratory, St Louis, Missouri 63130 4899, USA
J Biomed Opt 15:036019. 2010..The significant difference in photoacoustic signals between water and fat tissue indicates that the laser-based PAT has the potential to detect water content in tissue... - Design and evaluation of a novel breast cancer detection system combining both thermoacoustic (TA) and photoacoustic (PA) tomographyManojit Pramanik
Optical Imaging Laboratory, Department of Biomedical Engineering, Washington University in St Louis, St Louis, Missouri 63130, USA
Med Phys 35:2218-23. 2008..Here we present the design of the breast scanner along with initial tissue phantom study results as a precursor to an actual patient study... - Compressed sensing in photoacoustic tomography in vivoZijian Guo
Washington University, Department of Biomedical Engineering, Optical Imaging Laboratory, 1 Brookings Drive, St Louis, Missouri 63130, USA
J Biomed Opt 15:021311. 2010..We adapt compressed sensing (CS) for the reconstruction in PACT. CS-based PACT is implemented as a nonlinear conjugate gradient descent algorithm and tested with both phantom and in vivo experiments... - Photoacoustic tomography of the mouse cerebral cortex with a high-numerical-aperture-based virtual point detectorChanghui Li
Washington University in St Louis, Department of Biomedical Engineering, Optical Imaging Laboratory, St Louis, Missouri 63130, USA
J Biomed Opt 14:024047. 2009..Compared with a finite-size flat transducer, images generated by using this virtual point detector have both uniform signal-to-noise ratio (SNR) and resolution... - Photoacoustic tomography and sensing in biomedicineChanghui Li
Optical Imaging Laboratory, Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
Phys Med Biol 54:R59-97. 2009..The emphasized areas include the new imaging modalities, hybrid detection methods, photoacoustic contrast agents and the photoacoustic Doppler effect, as well as translational research topics... - Real-time photoacoustic tomography of cortical hemodynamics in small animalsChanghui Li
Washington University in St Louis, Department of Biomedical Engineering Optical Imaging Laboratory, St Louis, Missouri 63130University of Connecticut, Department of Electrical and Computer Engineering, Storrs, Connecticut 06269
J Biomed Opt 15:010509. 2010..Our results demonstrated that PAT is a powerful imaging modality that can be potentially used to study small animal neurofunctional activities...