F S Foster

Summary

Affiliation: Sunnybrook and Women's College Health Sciences Centre
Country: Canada

Publications

  1. ncbi request reprint Experimental characterization of fundamental and second harmonic beams for a high-frequency ultrasound transducer
    Emmanuel W Cherin
    Imag Res, Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Toronto, ON, Canada
    Ultrasound Med Biol 28:635-46. 2002
  2. ncbi request reprint In vivo imaging of embryonic development in the mouse eye by ultrasound biomicroscopy
    F Stuart Foster
    Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
    Invest Ophthalmol Vis Sci 44:2361-6. 2003
  3. ncbi request reprint Dynamic measurement of internal solid displacement in articular cartilage using ultrasound backscatter
    Manuel Fortin
    Department of Chemical Engineering, Institute of Biomedical Engineering, Ecole Polytechnique de Montreal, P O Box 6079, Station Centre Ville, Que, H3C 3A7, Montreal, Canada
    J Biomech 36:443-7. 2003
  4. ncbi request reprint In vivo assessment of postnatal murine ocular development by ultrasound biomicroscopy
    Allison S Brown
    Department of Imaging Research, Sunnybrook and Women s College Health Sciences Centre, Toronto, Ontario, Canada
    Curr Eye Res 30:45-51. 2005
  5. ncbi request reprint Performance and characterization of new micromachined high-frequency linear arrays
    Marc Lukacs
    Imaging Research, Sunnybrook and Women s College Health Science Centre, University of Toronto, Toronto, ON M4N 3M5, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 53:1719-29. 2006
  6. ncbi request reprint A new ultrasound instrument for in vivo microimaging of mice
    F S Foster
    Dept of Medical Biophysics, Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
    Ultrasound Med Biol 28:1165-72. 2002
  7. ncbi request reprint Ultrasound for the visualization and quantification of tumor microcirculation
    F S Foster
    Sunnybrook and Women s College Health Sciences Centre and the University of Toronto, Ontario, Canada
    Cancer Metastasis Rev 19:131-8. 2000
  8. ncbi request reprint High-frequency color flow imaging of the microcirculation
    D E Goertz
    Department of Medical Biophysics, University of Toronto, Ontario, Canada
    Ultrasound Med Biol 26:63-71. 2000
  9. doi request reprint A method for differentiating targeted microbubbles in real time using subharmonic micro-ultrasound and interframe filtering
    A Needles
    Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
    Ultrasound Med Biol 35:1564-73. 2009
  10. ncbi request reprint Advances in ultrasound biomicroscopy
    F S Foster
    Sunnybrook Health Science Centre and Department of Medical Biophysics, University of Toronto, Ontario, Canada
    Ultrasound Med Biol 26:1-27. 2000

Collaborators

Detail Information

Publications43

  1. ncbi request reprint Experimental characterization of fundamental and second harmonic beams for a high-frequency ultrasound transducer
    Emmanuel W Cherin
    Imag Res, Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Toronto, ON, Canada
    Ultrasound Med Biol 28:635-46. 2002
    ..59 mm. The harmonic beam showed a 3-dB decrease in side lobe levels. Preliminary second harmonic images of mouse tissue in vitro are presented and compared to fundamental imaging at 20 and 40 MHz...
  2. ncbi request reprint In vivo imaging of embryonic development in the mouse eye by ultrasound biomicroscopy
    F Stuart Foster
    Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
    Invest Ophthalmol Vis Sci 44:2361-6. 2003
    ..In this study, normal embryonic development of the mouse eye was studied by ultrasound biomicroscopy (UBM), with a focus on the formation of the retina, lens, and cornea...
  3. ncbi request reprint Dynamic measurement of internal solid displacement in articular cartilage using ultrasound backscatter
    Manuel Fortin
    Department of Chemical Engineering, Institute of Biomedical Engineering, Ecole Polytechnique de Montreal, P O Box 6079, Station Centre Ville, Que, H3C 3A7, Montreal, Canada
    J Biomech 36:443-7. 2003
    ..4 (depending on compression speed), followed by contraction to lower values. A more restricted movement was observed at both the articular surface and near to the subchondral bone than at regions midway between these two locations...
  4. ncbi request reprint In vivo assessment of postnatal murine ocular development by ultrasound biomicroscopy
    Allison S Brown
    Department of Imaging Research, Sunnybrook and Women s College Health Sciences Centre, Toronto, Ontario, Canada
    Curr Eye Res 30:45-51. 2005
    ..Ultrasound biomicroscopy (UBM) can noninvasively provide anatomical information about mouse ocular structures. We present the quantitation of postnatal murine eye development using UBM...
  5. ncbi request reprint Performance and characterization of new micromachined high-frequency linear arrays
    Marc Lukacs
    Imaging Research, Sunnybrook and Women s College Health Science Centre, University of Toronto, Toronto, ON M4N 3M5, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 53:1719-29. 2006
    ..Any significant deviation from simulation can be explained through limitations in apparatus calibration and in device packaging...
  6. ncbi request reprint A new ultrasound instrument for in vivo microimaging of mice
    F S Foster
    Dept of Medical Biophysics, Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
    Ultrasound Med Biol 28:1165-72. 2002
    ..Noninvasive UBM assessment of development shows striking similarity to invasive atlases of mouse anatomy. The most detailed noninvasive in vivo images of mouse embryonic development achieved using any imaging method are presented...
  7. ncbi request reprint Ultrasound for the visualization and quantification of tumor microcirculation
    F S Foster
    Sunnybrook and Women s College Health Sciences Centre and the University of Toronto, Ontario, Canada
    Cancer Metastasis Rev 19:131-8. 2000
    ..The strengths and weaknesses of these new methods are discussed and the potential for their use in preclinical animal drug studies, clinical drug trials, and prognostic studies is described...
  8. ncbi request reprint High-frequency color flow imaging of the microcirculation
    D E Goertz
    Department of Medical Biophysics, University of Toronto, Ontario, Canada
    Ultrasound Med Biol 26:63-71. 2000
    ..Further experiments examining experimental murine tumors confirmed the successful detection of flow in the tumor microcirculation...
  9. doi request reprint A method for differentiating targeted microbubbles in real time using subharmonic micro-ultrasound and interframe filtering
    A Needles
    Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
    Ultrasound Med Biol 35:1564-73. 2009
    ....
  10. ncbi request reprint Advances in ultrasound biomicroscopy
    F S Foster
    Sunnybrook Health Science Centre and Department of Medical Biophysics, University of Toronto, Ontario, Canada
    Ultrasound Med Biol 26:1-27. 2000
    ..Ultrasound biomicroscopic studies of mouse embryonic development and tumour biology are presented. Speculation on the continuing evolution of ultrasound biomicroscopy will be discussed...
  11. doi request reprint High-frequency subharmonic pulsed-wave Doppler and color flow imaging of microbubble contrast agents
    A Needles
    Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
    Ultrasound Med Biol 34:1139-51. 2008
    ....
  12. doi request reprint Nonlinear contrast imaging with an array-based micro-ultrasound system
    A Needles
    VisualSonics Inc, Toronto, Ontario, Canada
    Ultrasound Med Biol 36:2097-106. 2010
    ....
  13. ncbi request reprint Ultrasonic detection and developmental changes in calcification of the placenta during normal pregnancy in mice
    C Akirav
    Samuel Lunenfeld Research Institute of Mount Sinai Hospital, Toronto, Ontario, Canada
    Placenta 26:129-37. 2005
    ..These deposits provide an ultrasound detectable marker of the maternal-placental interface that is particularly prominent during the establishment of the chorio-allantoic placenta between days 7.5 and 9.5 of gestation...
  14. ncbi request reprint High-frequency intracoronary ultrasound imaging
    F S Foster
    Sunnybrook Health Science Centre, Toronto, Ontario, Canada
    Semin Interv Cardiol 2:33-41. 1997
    ..There would appear to be no fundamental reason why frequencies in excess of 50 MHz could not be implemented. Studies using prototype IVUS instruments in the 50 MHz range demonstrate significant improvements in image quality...
  15. ncbi request reprint Quantifying tissue damage due to focused ultrasound heating observed by MRI
    S J Graham
    Sunnybrook and Women s College Health Sciences Centre, and Department of Medical Biophysics, University of Toronto, Ontario, Canada
    Magn Reson Med 41:321-8. 1999
    ..These results suggest that quantitative MR guidance of thermal coagulation therapy is feasible, and they provide information useful for designing future investigations in vivo...
  16. ncbi request reprint Use of microbubble ultrasound contrast agent to demonstrate the iris valve effect in human eye bank eyes
    C J Pavlin
    Department of Ophthalmology, Ontario Cancer Institute, Princess Margaret Hospital, University of Toronto, Canada
    Am J Ophthalmol 126:719-20. 1998
    ..To demonstrate that the interface between the normal iris and the lens surface functions as a flap valve...
  17. ncbi request reprint Interdigital pair bonding for high frequency (20-50 MHz) ultrasonic composite transducers
    R Liu
    Imaging and Bioengineering, Sunnybrook and Women's College Health Sciences Centre, University of Toronto, Toronto, Ontario M4N 3M5, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 48:299-306. 2001
    ....
  18. ncbi request reprint Design and fabrication of ultrafine piezoelectric composites
    J Yin
    Imaging Research, Sunnybrook and Women s College Health Science Centre, University of Toronto, Toronto, ON M1V 3A5, Canada
    Ultrason Imaging 27:54-64. 2005
    ..6 and that there are no noticeable lateral resonances in the frequency range of 55-150 MHz. Design criteria for fine scale elements are also discussed based on theoretical results from finite element analysis (FEA)...
  19. doi request reprint In vitro characterization of the subharmonic ultrasound signal from Definity microbubbles at high frequencies
    K Cheung
    Imaging Research, Sunnybrook Health Sciences Centre University of Toronto, Toronto, Canada
    Phys Med Biol 53:1209-23. 2008
    ..2 microm, respectively. Definity may be a suitable ultrasound contrast agent for subharmonic imaging at 20 MHz with peak-negative pressures between 380 and 590 kPa and pulses greater than or equal to four cycles in duration...
  20. pmc Use of a high frequency ultrasound microscope to image the action of 2-nitroimidazoles in multicellular spheroids
    L R Bérubé
    Ontario Cancer Institute, Toronto, Canada
    Br J Cancer 65:633-40. 1992
    ..The present work demonstrates the potential usefulness of ultrasound backscatter microscopy in following the action of selected drugs in this in vitro tumour model...
  21. ncbi request reprint Applications for multifrequency ultrasound biomicroscopy in mice from implantation to adulthood
    Y Q Zhou
    Samuel Lunenfeld Research Institute at Mount Sinai Hospital, Toronto, Ontario, Canada, M5G 1X5
    Physiol Genomics 10:113-26. 2002
    ....
  22. ncbi request reprint In vitro and in vivo comparison of three different intravascular ultrasound catheter designs
    S Fort
    Schulich Heart Centre, Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Ontario, Canada
    Catheter Cardiovasc Interv 52:382-92. 2001
    ..There were also small but potentially important differences with regards to clinical events and complications associated with the use of the different IVUS catheters during the PCI procedures, reflecting differences in catheter design...
  23. ncbi request reprint Model for the ultrasound reflection from micro-beads and cells distributed in layers on a uniform surface
    O Couture
    Imaging Research, Sunnybrook Health Sciences Centre University of Toronto, Toronto, Canada
    Phys Med Biol 52:4189-204. 2007
    ..The use of such a model could lead to a better understanding of the structures observed in layered tissue images...
  24. ncbi request reprint Feasibility of linear arrays for interstitial ultrasound thermal therapy
    R Chopra
    Sunnybrook and Women s College Health Sciences Centre and Department of Medical Biophysics, University of Toronto, Ontario, Canada
    Med Phys 27:1281-6. 2000
    ..Single element transducers produced excessive heating near the probe surface. Homogeneous blood flow is predicted to reduce the mean temperature within the heated region, with little effect on the spatial pattern...
  25. ncbi request reprint High frequency acoustic parameters of human and bovine articular cartilage following experimentally-induced matrix degradation
    G A Joiner
    Department of Medical Biophysics, University of Toronto, Sunnybrook and Women's College Health Sciences Centre, ON, Canada
    Ultrason Imaging 23:106-16. 2001
    ..These findings suggest that ultrasound can potentially be used to detect morphologic changes in articular cartilage associated with the progression of osteoarthritis...
  26. ncbi request reprint Ultrahigh frame rate retrospective ultrasound microimaging and blood flow visualization in mice in vivo
    Emmanuel Cherin
    Sunnybrook and Women s College Health Sciences Centre, Toronto, Ontario, Canada
    Ultrasound Med Biol 32:683-91. 2006
    ..This technology enables detailed in vivo biomechanical studies of dynamic tissues such as the myocardium of the mouse heart with high temporal resolution...
  27. ncbi request reprint Fabrication and performance of a 40-MHz linear array based on a 1-3 composite with geometric elevation focusing
    Jeremy A Brown
    Sunnybrook Health Sciences Centre, Toronto, ON, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1888-94. 2007
    ..A -3 dB one-way beamwidth of 97 microm was found at a depth of 6 mm. The one-way radiation pattern decreased smoothly to less than -30 dB at a lateral distance of 640 microm...
  28. ncbi request reprint Golay pulse encoding for microbubble contrast imaging in ultrasound
    Claudia Leavens
    Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 54:2082-90. 2007
    ....
  29. ncbi request reprint Noninvasive ultrasonic measurement of regional and local pulse-wave velocity in mice
    Ross Williams
    Sunnybrook Health Sciences Centre, Toronto, ON, Canada
    Ultrasound Med Biol 33:1368-75. 2007
    ..80, p<0.001). The mean difference between methods was 0.05+/-0.21 m/s. This study demonstrates the feasibility of measuring both regional and local PWV in mice using image-based high-frequency ultrasound methodologies...
  30. ncbi request reprint Microultrasound molecular imaging of vascular endothelial growth factor receptor 2 in a mouse model of tumor angiogenesis
    Joshua J Rychak
    VisualSonics, Inc, Toronto, ON
    Mol Imaging 6:289-96. 2007
    ..These data demonstrate that contrast-enhanced microultrasound imaging is a useful method for assessing molecular expression of tumor angiogenesis in mice at high resolution...
  31. doi request reprint Innovations in imaging for chronic total occlusions: a glimpse into the future of angiography's blind-spot
    Brian K Courtney
    Division of Cardiology, Schulich Heart Program, Sunnybrook Health Sciences Centre, Room A 253, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
    Eur Heart J 29:583-93. 2008
    ..Strategies that combine imaging techniques with the use of interventional therapies may provide significant opportunities to improve results in CTO interventions and represent an active area of investigation...
  32. ncbi request reprint Interframe clutter filtering for high frequency flow imaging
    Andrew Needles
    Sunnybrook Health Sciences Centre, Toronto, Canada
    Ultrasound Med Biol 33:591-600. 2007
    ..Further in vivo experiments examining experimental murine tumors demonstrated the feasibility of performing HF PD and CF imaging at high frame rates using interframe filtering...
  33. ncbi request reprint Nonlinear ultrasound propagation through layered liquid and tissue-equivalent media: computational and experimental results at high frequency
    Ross Williams
    Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, M4N 3M5, Canada
    Phys Med Biol 51:5809-24. 2006
    ..The results demonstrate significant nonlinear propagation effects for high frequency imaging beams...
  34. ncbi request reprint A model for reflectivity enhancement due to surface bound submicrometer particles
    Olivier Couture
    Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
    Ultrasound Med Biol 32:1247-55. 2006
    ..This suggests the possibility of predicting signal enhancement due to a bound contrast agent in simple geometries...
  35. ncbi request reprint High-frequency 3-D color-flow imaging of the microcirculation
    David E Goertz
    Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
    Ultrasound Med Biol 29:39-51. 2003
    ..Experiments conducted on mouse tumors successfully imaged microvessel morphology in the tumor microcirculation...
  36. ncbi request reprint Developmental changes in left and right ventricular diastolic filling patterns in mice
    Yu Qing Zhou
    Samuel Lunenfeld Research Institute, Mount Sinai Hospital, and Department of Physiology, University of Toronto, Ontario, Canada M5G 1X5
    Am J Physiol Heart Circ Physiol 285:H1563-75. 2003
    ..The results suggest that diastolic function matures approximately 3 wk postnatally, presumably in association with maturation of ventricular recoil and relaxation mechanisms...
  37. ncbi request reprint Multifrequency ultrasound transducers for conformal interstitial thermal therapy
    Rajiv Chopra
    Sunnybrook and Women s College Health Sciences Centre, Department of Medical Biophysics, University of Toronto, Toronto, ON M4N 3M5, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 50:881-9. 2003
    ..Practical interstitial designs that enable the generation of shaped thermal lesions are feasible...
  38. ncbi request reprint Developmental changes in integrated ultrasound backscatter from embryonic blood in vivo in mice at high US frequency
    Johann Le Floc'h
    Department of Medical Biophysics, Sunnybrook and Women s College Health Sciences Centre, Toronto, Ont, Canada
    Ultrasound Med Biol 30:1307-19. 2004
    ..We speculate that developmental changes in red cell morphology are responsible for the observed changes in echogenicity and AIB of embryonic blood with gestational age in mice...
  39. ncbi request reprint High frequency nonlinear B-scan imaging of microbubble contrast agents
    David E Goertz
    Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
    IEEE Trans Ultrason Ferroelectr Freq Control 52:65-79. 2005
    ..The results of this study demonstrate the feasibility of nonlinear microbubble imaging at high frequencies...
  40. ncbi request reprint Non-invasive high-frequency vascular ultrasound elastography
    Roch L Maurice
    Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Quebec, Canada
    Phys Med Biol 50:1611-28. 2005
    ..The in vivo results give confidence in the feasibility of MicroNIVE as a potential tool to non-invasively study the impact of targeted genes on vascular remodelling in rodents...
  41. ncbi request reprint Thermal assessment of 40-MHz pulsed Doppler ultrasound in human eye
    Viviene Cucevic
    Imaging Research, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
    Ultrasound Med Biol 31:565-73. 2005
    ..For insonation of the lens, exposure settings no higher than nine cycles (0.225-micros pulse duration) and 10-kHz PRF should be employed and exposure time limited to minimize risk of temperature increases of 1 degree C...
  42. ncbi request reprint High-frequency, nonlinear flow imaging of microbubble contrast agents
    David E Goertz
    IEEE Trans Ultrason Ferroelectr Freq Control 52:495-502. 2005
    ..In vivo flow imaging of a rabbit ear microvessel was successfully performed. This work indicates the feasibility of performing flow imaging at high frequencies using nonlinear scattering from microbubbles...
  43. ncbi request reprint Quantitation of hemodynamic function during developmental vascular regression in the mouse eye
    Allison S Brown
    Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
    Invest Ophthalmol Vis Sci 46:2231-7. 2005
    ..Vascular development can also be assessed with high-frequency Doppler imaging, which permits detection and characterization of ocular blood flow not detectable at lower, conventional Doppler frequencies...