Adam Gibson

Summary

Affiliation: University College London
Country: UK

Publications

  1. ncbi request reprint Linear and nonlinear reconstruction for optical tomography of phantoms with nonscattering regions
    Adam P Gibson
    Department of Medical Physics and Bioengineering, University College London, London WC1E 6JA, United Kingdom
    Appl Opt 44:3925-36. 2005
  2. ncbi request reprint Three-dimensional whole-head optical tomography of passive motor evoked responses in the neonate
    A P Gibson
    Department of Medical Physics and Bioengineering, University College London, Malet Place Engineering Building, London WC1E 6BT, UK
    Neuroimage 30:521-8. 2006
  3. doi request reprint Diffuse optical imaging
    Adam Gibson
    Department of Medical Physics and Bioengineering, University College London, London WC1E 6BT, UK
    Philos Trans A Math Phys Eng Sci 367:3055-72. 2009
  4. ncbi request reprint Optical tomography of a realistic neonatal head phantom
    Adam Gibson
    Department of Medical Physics and Bioengineering, University College London, 11 20 Capper Street, London WC1E 6JA
    Appl Opt 42:3109-16. 2003
  5. ncbi request reprint Imaging changes in blood volume and oxygenation in the newborn infant brain using three-dimensional optical tomography
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, 11 20 Capper Street, London WC1E 6JA, UK
    Phys Med Biol 49:1117-30. 2004
  6. ncbi request reprint Optical tomography of the breast using a multi-channel time-resolved imager
    Tara Yates
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Phys Med Biol 50:2503-17. 2005
  7. ncbi request reprint Assessment of an in situ temporal calibration method for time-resolved optical tomography
    Jeremy C Hebden
    University College London, Department of Medical Physics and Bioengineering, 11 20 Capper Street, London WC1E 6JA, UK
    J Biomed Opt 8:87-92. 2003
  8. ncbi request reprint Monitoring recovery after laser surgery of the breast with optical tomography: a case study
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, United Kingdom
    Appl Opt 44:1898-904. 2005
  9. doi request reprint Three-dimensional optical topography of brain activity in infants watching videos of human movement
    Teresa Correia
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Phys Med Biol 57:1135-46. 2012
  10. ncbi request reprint Selection of regularization parameter for optical topography
    Teresa Correia
    University College London, Department of Medical Physics and Bioengineering, Gower Street, London WC1E 6BT, United Kingdom
    J Biomed Opt 14:034044. 2009

Detail Information

Publications26

  1. ncbi request reprint Linear and nonlinear reconstruction for optical tomography of phantoms with nonscattering regions
    Adam P Gibson
    Department of Medical Physics and Bioengineering, University College London, London WC1E 6JA, United Kingdom
    Appl Opt 44:3925-36. 2005
    ..This study supports the use of linear reconstruction for dynamic imaging but suggests that, in all cases, image quality is likely to improve if the clear regions are modeled correctly...
  2. ncbi request reprint Three-dimensional whole-head optical tomography of passive motor evoked responses in the neonate
    A P Gibson
    Department of Medical Physics and Bioengineering, University College London, Malet Place Engineering Building, London WC1E 6BT, UK
    Neuroimage 30:521-8. 2006
    ..8 mm. These results suggest that optical tomography may provide an appropriate technique for non-invasive cot-side imaging of brain function...
  3. doi request reprint Diffuse optical imaging
    Adam Gibson
    Department of Medical Physics and Bioengineering, University College London, London WC1E 6BT, UK
    Philos Trans A Math Phys Eng Sci 367:3055-72. 2009
    ..We aim to review the state of the art of optical imaging...
  4. ncbi request reprint Optical tomography of a realistic neonatal head phantom
    Adam Gibson
    Department of Medical Physics and Bioengineering, University College London, 11 20 Capper Street, London WC1E 6JA
    Appl Opt 42:3109-16. 2003
    ..The head-shaped mesh performed slightly better than the spherical mesh, particularly when the absorption of the central region of the phantom was increased...
  5. ncbi request reprint Imaging changes in blood volume and oxygenation in the newborn infant brain using three-dimensional optical tomography
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, 11 20 Capper Street, London WC1E 6JA, UK
    Phys Med Biol 49:1117-30. 2004
    ..The results exhibit large changes in absorption coefficient at both wavelengths. Images corresponding to differences in concentrations of oxy- and deoxyhaemoglobin are in qualitative agreement with known physiological data...
  6. ncbi request reprint Optical tomography of the breast using a multi-channel time-resolved imager
    Tara Yates
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Phys Med Biol 50:2503-17. 2005
    ..Drawbacks of our current methodology and plans for overcoming them are discussed...
  7. ncbi request reprint Assessment of an in situ temporal calibration method for time-resolved optical tomography
    Jeremy C Hebden
    University College London, Department of Medical Physics and Bioengineering, 11 20 Capper Street, London WC1E 6JA, UK
    J Biomed Opt 8:87-92. 2003
    ..The effectiveness of the method is briefly demonstrated by imaging a solid object with tissue-equivalent optical properties...
  8. ncbi request reprint Monitoring recovery after laser surgery of the breast with optical tomography: a case study
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, United Kingdom
    Appl Opt 44:1898-904. 2005
    ..Although results indicate that purely qualitative images can potentially provide clinically valuable data, means of enhancing diagnostic information by overcoming present limitations of the approach are discussed...
  9. doi request reprint Three-dimensional optical topography of brain activity in infants watching videos of human movement
    Teresa Correia
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Phys Med Biol 57:1135-46. 2012
    ..These results suggest that infants a few months old have regions which are specialized for reacting to human activity, and that these subtle changes can be effectively analysed using 3D optical topography...
  10. ncbi request reprint Selection of regularization parameter for optical topography
    Teresa Correia
    University College London, Department of Medical Physics and Bioengineering, Gower Street, London WC1E 6BT, United Kingdom
    J Biomed Opt 14:034044. 2009
    ..We test them on two trial problems, deblurring and optical topography, and conclude that the L-curve method is the method of choice, though in particularly ill-posed problems, generalized cross-validation may provide an alternative...
  11. ncbi request reprint Three-dimensional optical tomography of the premature infant brain
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, 11 20 Capper Street, London WC1E 6JA, UK
    Phys Med Biol 47:4155-66. 2002
    ....
  12. doi request reprint Identification of the optimal wavelengths for optical topography: a photon measurement density function analysis
    Teresa Correia
    University College London, Department of Medical Physics and Bioengineering, Gower Street, London, WC1E 6BT United Kingdom
    J Biomed Opt 15:056002. 2010
    ..However, for the adult human head, the differences between interrogated volumes at NIR wavelengths are very small and image reconstruction is only slightly improved when measurements with overlapping sensitivities are used...
  13. doi request reprint An elastically compressible phantom material with mechanical and x-ray attenuation properties equivalent to breast tissue
    B D Price
    Department of Medical Physics and Bioengineering, University College London, London WC1E 6BT, UK
    Phys Med Biol 55:1177-88. 2010
    ..Varying the PVAL concentration from 7.5 to 20% w/v produces gels with Young's moduli from 20 to 220 kPa at 15% strain. These values are characteristic of normal and cancerous breast tissue, respectively...
  14. ncbi request reprint Assessing the validity of modulation transfer function evaluation techniques with application to small area and scanned digital detectors
    B D Price
    Department of Medical Physics and Bioengineering, University College London, London, United Kingdom
    Rev Sci Instrum 79:113103. 2008
    ..It was also found that use of such a step and shoot technique does cause a very small overall degradation in resolution. The resolution of overall images was calculated to be 0.1 lp/mm lower than that of the individual images acquired...
  15. ncbi request reprint Investigation of depth dependent changes in cerebral haemodynamics during face perception in infants
    A Blasi
    Biomedical Optics Research Lab, Department of Medical Physics and Bioengineering, Malet Place Engineering Building, University College London, London WC1E 6BT, UK
    Phys Med Biol 52:6849-64. 2007
    ..Activation maps were obtained using 3D reconstruction methods on multi source-detector separation optical topography data...
  16. doi request reprint Transient haemodynamic events in neurologically compromised infants: a simultaneous EEG and diffuse optical imaging study
    R J Cooper
    Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering, University College London, London, UK
    Neuroimage 55:1610-6. 2011
    ..The importance and physiological implications of our findings are discussed, as is the suitability of a combined EEG and diffuse optical imaging approach to the study and monitoring of neonatal brain injury...
  17. doi request reprint Monitoring the response to neoadjuvant hormone therapy for locally advanced breast cancer using three-dimensional time-resolved optical mammography
    Louise Enfield
    University College London, Department of Medical Physics and Bioengineering, Malet Place, London, WC1E 6BT, United Kingdom
    J Biomed Opt 18:56012. 2013
    ..These case studies suggest that optical imaging of the breast during neoadjuvant hormone treatment can provide potentially valuable information, and that physiological changes within the tumor can be seen in response to treatment...
  18. doi request reprint Design and evaluation of a probe for simultaneous EEG and near-infrared imaging of cortical activation
    R J Cooper
    Department of Medical Physics and Bioengineering, University College London, London WC1E 6BT, UK
    Phys Med Biol 54:2093-102. 2009
    ..We successfully acquired NIR optical and EEG data simultaneously for both our phantom and our human motor cortex experiments, clearly demonstrating the effectiveness and suitability of our 'opto-electrode'...
  19. ncbi request reprint A method for generating patient-specific finite element meshes for head modelling
    A P Gibson
    Department of Medical Physics and Bioengineering, University College London, UK
    Phys Med Biol 48:481-95. 2003
    ..However, data generated from a mesh of the best fit sphere were significantly different from data generated from the original neonatal head surface...
  20. ncbi request reprint Three dimensional optical imaging of blood volume and oxygenation in the neonatal brain
    T Austin
    Department of Paediatrics and Child Health, University College London, UK
    Neuroimage 31:1426-33. 2006
    ..These results suggest that optical tomography may provide an appropriate technique for investigating regional cerebral haemodynamics and oxygenation at the cotside...
  21. ncbi request reprint A soft deformable tissue-equivalent phantom for diffuse optical tomography
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Phys Med Biol 51:5581-90. 2006
    ..The deformable phantoms may be used to test and calibrate optical tomography systems designed for use on patients with irregular or variable geometries...
  22. ncbi request reprint Electrical impedance tomography of human brain function using reconstruction algorithms based on the finite element method
    Andrew P Bagshaw
    Department of Clinical Neurophysiology, University College London, UK
    Neuroimage 20:752-64. 2003
    ....
  23. ncbi request reprint Computational calibration method for optical tomography
    Tanja Tarvainen
    Department of Applied Physics, University of Kuopio, P O Box 1627, FIN 70211 Kuopio, Finland
    Appl Opt 44:1879-88. 2005
    ..The results show that the coupling coefficients of the sources and detectors can be estimated with good accuracy. Furthermore, the results show that the method can significantly improve the quality of reconstructed images...
  24. ncbi request reprint Time-resolved optical mammography using a liquid coupled interface
    Tara D Yates
    University College London, Department of Medical Physics and Bioengineering, London WC1E 6BT, United Kingdom
    J Biomed Opt 10:054011. 2005
    ..Preliminary images of a healthy human subject are also presented, which reveal subtle heterogeneity, particularly in the distribution of scatter. The ability to detect an absorbing target adjacent to the breast is also demonstrated...
  25. ncbi request reprint Three-dimensional time-resolved optical mammography of the uncompressed breast
    Louise C Enfield
    Department of Medical Physics and Bioengineering, University College London, London, WC1E 6BT, UK
    Appl Opt 46:3628-38. 2007
    ..Only half of the fibroadenomas scanned could be observed, but of those that could be detected, all but one revealed an apparent increase in blood volume and a decrease in scatter and oxygen saturation...
  26. doi request reprint An electrically-activated dynamic tissue-equivalent phantom for assessment of diffuse optical imaging systems
    Jeremy C Hebden
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Phys Med Biol 53:329-37. 2008
    ..Images of the phantom have been reconstructed using data acquired with a continuous wave optical topography system...