1. Stephen A. Boppart

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    1. Mentioned In 167 Articles

    2. Segmentation And Correlation Of Optical Coherence Tomography And X-RAY Images For Breast Cancer Diagnostics.

      Segmentation And Correlation Of Optical Coherence Tomography And X-RAY Images For Breast Cancer Diagnostics.

      Pre-operative X-ray mammography and intraoperative X-ray specimen radiography are routinely used to identify breast cancer pathology. Recent advances in optical coherence tomography (OCT) have enabled its use for the intraoperative assessment of surgical margins during breast cancer surgery. While each modality offers distinct contrast of normal and pathological features, there is an essential need to correlate image -based features between the two modalities to take advantage of the diagnostic capabilities of each technique. We compare OCT to X-ray images of resected human breast tissue and correlate different tissue features between modalities for future use in real-time intraoperative OCT imaging . X-ray ...

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    3. State of the Industry report on Optical Coherence Tomography

      State of the Industry report on Optical Coherence Tomography

      The first commercial optical coherence tomography (OCT) imagers were introduced to ophthalmology by Advanced Ophthalmic Devices (now owned by Zeiss Meditec) in 1992. Since then, the market for OCT systems has grown at an impressive compounded annual rate of about 45%. This segment of the biophotonics marketplace has flourished because OCT enables sub-surface imaging of translucent or opaque materials, such as human tissue, in real time at micron resolution and without the use of ionizing radiation. As a result, last year’s global sales of all OCT systems exceeded $400 million and the market now supports more than 36 OCT ...

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    4. Apparatus for biomedical imaging

      Apparatus for biomedical imaging

      A system that incorporates teachings of the present disclosure may include, for example, a method involving capturing spectral interference from an optical coherence tomography imaging probe comprising a micro-electro-mechanical system (MEMS) scanning mirror, and a partial reflector for supplying images to an image sensor. Additional embodiments are disclosed.

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    5. High Resolution Phase-Sensitive Magnetomotive Optical Coherence Microscopy for Tracking Magnetic Microbeads and Cellular Mechanics

      High Resolution Phase-Sensitive Magnetomotive Optical Coherence Microscopy for Tracking Magnetic Microbeads and Cellular Mechanics

      We present a real-time multimodal near-infrared imaging technology that tracks externally-induced axial motion of magnetic microbeads in single cells in culture. The integrated multimodal imaging technique consists of phase-sensitive magnetomotive optical coherence microscopy (MM-OCM) and multiphoton microscopy (MPM). MPM is utilized for the visualization of multifunctional fluorescent and magnetic microbeads, while MM-OCM detects, with nanometer-scale sensitivity, periodic displacements of the microbeads induced by the modulation of an external magnetic field. Magnetomotive signals are measured from mouse macrophages, human breast primary ductal carcinoma cells, and human breast epithelial cells in culture, and validated with full-field phase-sensitive microscopy. This methodology demonstrates the ...

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    6. Long-term time-lapse multimodal intravital imaging of regeneration and bone-marrow-derived cell dynamics in skin (World Scientific)

      Long-term time-lapse multimodal intravital imaging of regeneration and bone-marrow-derived cell dynamics in skin (World Scientific)
      ...nd Community Health, University of Illinois at Urbana-Champaign, 405 N. Mathews Avenue, Urbana, IL 61801, USA Stephen A. Boppart Correspondence should be addressed to S.A.B. Beckman Institute for Advanced Science and...
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    7. Dynamic method of optical coherence elastography in determining viscoelasticity of polymers and tissues

      Dynamic method of optical coherence elastography in determining viscoelasticity of polymers and tissues

      In this paper, we report on a novel quantitative elastography technique that combines optical coherence tomography (OCT) with acoustic radiation force (ARF) excitation to estimate the complex modulus. Sinusoidally modulated ARF excitations between 200 – 4000 Hz generate a surface wave at the tissue surface that can be related to bulk viscoelastic (VE) properties in a manner that is both precise and quantitative. This method is very well suited to studying media at high spatial resolution and over a very broad range of force frequencies. Mechanical characterization was calibrated using hydropolymers before studying liver samples. Fresh porcine liver samples were measured ...

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    8. University of Illinois at Urbana-Champaign Receives NIH Grant for Interaoperative OCT for Determining Lymph Node Status and Staging Cancer

      University of Illinois at Urbana-Champaign Receives NIH Grant for Interaoperative OCT for Determining Lymph Node Status and Staging Cancer
      ...0 for Interaoperative OCT for Determining Lymph Node Status and Staging Cancer. The principal investigator is Stephen Boppart. The program began in 2010 and ends in 2014. Below is a summary of the proposed work.

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    9. Magnetomotive Optical Coherence Tomography for the Assessment of Atherosclerotic Lesions Using αvβ 3 Integrin-Targeted Microspheres

      Magnetomotive Optical Coherence Tomography for the Assessment of Atherosclerotic Lesions Using αvβ 3 Integrin-Targeted Microspheres

      Purpose We investigated the early-stage fatty streaks/plaques detection using magnetomotive optical coherence tomography (MM-OCT) in conjunction with α v β 3 integrin-targeted magnetic microspheres (MSs). The targeting of functionalized MSs was investigated by perfusing ex vivo aortas from an atherosclerotic rabbit model in a custom-designed flow chamber at physiologically relevant pulsatile flow rates and pressures. Procedures Aortas were extracted and placed in a flow chamber. Magnetic MS contrast agents were perfused through the aortas and MM-OCT, fluorescence confocal, and bright field microscopy were performed on the ex vivo aorta specimens for localizing the MSs. Results The results showed a statistically significant ...

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    10. University of Illinois Urbana-Champaign Receives NIH Grant for Intraoperative Label-Free Optical Molecular Imaging of Breast Tumor Margins

      University of Illinois Urbana-Champaign Receives NIH Grant for Intraoperative Label-Free Optical Molecular Imaging of Breast Tumor Margins
      ...or Intraoperative Label-Free Optical Molecular Imaging of Breast Tumor Margins. The principal investigator is Stephen Boppart. The program started in 2012 and ends in 2017. Below is a summary of the proposed work.

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    11. 16-30 of 167 « 1 2 3 4 5 ... 9 10 11 »
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  2. About Stephen A. Boppart

    Stephen A. Boppart

    Stephen A. Boppart is a professor in the Biophotonics Imaging Laboratory at the University of Illinois Urbana Champaign.  Dr. Boppart received his Ph.D. from the Massachusetts Institute of Technology in 1998, followed by a M.D. from Harvard Medical School in 2000. Currently Prof. Boppart is a full-time faculty member in the Beckman Institute Nanoelectronics and Biophotonics Group as well as an associate professor in the UIUC Department of Electrical and Computer Engineering and the Bioengineering Department. In January 2007, he was named the Founding Director of the Mills Breast Cancer Institute at Carle Foundation Hospital. Dr. Boppart is also a Clinical Research Physician in the UI College of Medicine-Urbana. His fields of professional interest include optical imaging (specifically in Optical Coherence Tomography) and biophotonics in medicine and biology.

  3. Quotes

    1. Jim's innovation, scholarly activities, professional service, entrepreneurial efforts, and impact on the field of biomedical optics typifies the spirit of this award, and reflects the seminal changes that Britton Chance made during his lifetime...Few researchers in the world today have had such a profound impact as a result of their technological work that has literally changed our field, changed the way we practice medicine, and directly improved the lives of perhaps hundreds of thousands of patients (considering ophthalmology and cardiology).
      In Fujimoto Honored with Britton Chance Biomedical Optics Award
    2. We know that antibiotics don’t always work well if you have a biofilm, because the bacteria protect themselves and become resistant...In the presence of a chronic ear infection that has a biofilm, the bacteria may not respond to the usual antibiotics, and you need to stop them. But without being able to detect the biofilm, we have no idea whether or not it’s responding to treatment.
      In Nowhere to hide: New device sees bacteria behind the eardrum
    3. I think it's going to dramatically change things...What we hope is that diagnosis is going to get shifted closer and closer to the point of care...We’re developing techniques to get at molecular changes..So much of medicine and pathology are based on structural changes. If we think of a pathologist looking at a slide, he or she looks at the cells and tissue structures. A radiologist will look at how organs and these anatomical structures are arranged...But with a lot of these techniques, we can get the molecular changes where disease starts. So a pathologist that has molecular information, not just structural, will perhaps catch disease earlier. The same is true for Rohit’s work and Gabi’s work.
      In Positive Results: A New Era for Medical Diagnostics - News from UIUC
    4. It's the same challenge, but instead of imaging through the atmosphere, we're imaging through tissue, and instead of imaging a star, we're imaging a cell.
      In Computing the best high-resolution 3-D tissue images - News from Beckman Institute at UIUC
    5. The effectiveness is striking...Because of the aberrations of the human eye, when you look at the retina without adaptive optics you just see variations of light and dark areas that represent the rods and cones. But when you use adaptive optics, you see the rods and cones as distinct objects...are working to compute the best image possible.
      In Computing the best high-resolution 3-D tissue images - News from Beckman Institute at UIUC
    6. to emphasize the role of medical imaging and how this technology has enabled us to look into the body at many different size scales, how imaging has enabled us to diagnose disease, and how imaging has made a difference in our healthcare...Federal dollars have been used to fund technology that’s going to change and improve health care. They already have. In the area of optics and high-resolution optical imaging, there’s going to be better healthcare, economic development with new companies, new jobs, and new areas of research to investigate...We can now do real-time microscopic imaging in the operating room without waiting for pathology.
      In Boppart Presents at Congressional Briefing
    7. In the end, I expect the cost of this system will be slightly more than what it replaces, but with significantly more capabilities, I do expect the cost of this system to continue to fall as more systems are developed and demand increases...This will be a boon for poorer hospitals and Third World or developing countries...It is essentially a portable imaging system with digital data that can be sent via cell-phone networks for analysis by experts in larger cities/hospitals.
      In Scientists awarded grant to continue developing optical device for medical exams
    8. The result of this – if successful, could really reduce our health care costs and streamline our delivery of health care.
      In NIH Awards Stephen Boppart $5M For A Bioengineering Research Partnership to Develop Handheld Optical Imaging Technology
    9. We are trying to build a small, handheld unit that has multiple tips...What’s collected is 3D digital data that can image several millimeters into tissue and at micron-scale resolution...The primary care physician is the best person to screen the general population for disease...“We think that it’s going to completely change the way we treat ear infections.
      In NIH Awards Stephen Boppart $5M For A Bioengineering Research Partnership to Develop Handheld Optical Imaging Technology
    10. The diagnosis is made based on very subjective interpretation – how the cells are laid out, the structure, the morphology...This is what we call the gold standard for diagnosis. We want to make the process of medical diagnostics more quantitative and more rapid.
      In New imaging technique accurately finds cancer cells, fast