All Articles from Eric A. Swanson -Optical Coherence Tomography News

Articles from Eric A. Swanson

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1. Congratulations to the Winners of the 2013 OCT News Student Paper Award
  
  Explore Optical Coherence Tomography News Jan 17 2013
  
  OCT News is pleased to announce the four winners of the 2013 student paper award competition. There were numerous submissions and they were judged on novelty, technical merit, and clarity by four judges (two from the USA and two from Europe). The winners are: Pei Ma from Case Western Reserve University for her submission “ Developing Technologies for Electrophysiology Imaging in Embryonic Hearts .” Jing-Gao Zheng from Tsinghua University for his submission “ Understanding Early Patterning and Polarity of Preimplantation Mouse Embryos with Full-Field Optical Coherence Tomography .” Carissa Reynolds from University of California Riverside for her submission “ Using Optical Coherence Tomography to Detect ...
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  Mentions: Case Western Reserve University University of Western Australia Tsinghua University
2. Estimates of Ophthalmic OCT Market Size and the Dramatic Reduction in Reimbursement Payments
  
  Explore Optical Coherence Tomography News Dec 1 2012 Ophthalmology
  
  Optical coherence tomography has been an unqualified success in the area of ophthalmology. As recently noted by OCT pioneer Dr. Carmen Puliafito, “OCT has revolutionized the treatment of eye diseases on a global basis and it is now routinely used to make clinical decisions about treating patients with blinding diseases such as macular degeneration, diabetic retinopathy, and glaucoma”. Over the past decade the market for ophthalmic OCT systems has grown tremendously and is now over $300M/year; there are ~14 companies making ophthalmic OCT instruments and more on the way; new impressive product features continue to be rolled out; nearly ...
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  Mentions: Carmen A. Puliafito James G. Fujimoto Optovue
3. In Response to Pressure Ontario Government Increases Ophthalmic OCT Reimbursement Fee
  
  Explore Optical Coherence Tomography News Nov 17 2012 Ophthalmology , Other Business News
  
  Just this past May it seemed the Ontario Government had angered some doctors and patients by reducing the ophthalmic OCT reimbursment rate from about $63 to $25. This set off articles in the press like this one " Doctors and patients upset over Ontario gov't cuts to critical eye exams " where it was expressed by some that this was not in the best interest of Ontario, doctors, or patients. It now seems that this reimbursement has again changed as detailed in this article " Ontario government reaches deal with doctors " where it is quoted that " The optical coherence tomography fee, which ...
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  Mentions: Eric A. Swanson
4. 2013 OCT News Student Paper Award Opportunity Announcement - A Travel Grant and iPad2
  
  Explore Optical Coherence Tomography News Nov 10 2012 Funding
  
  OCT News will sponsor three student paper awards of $1,000 each plus a 16Gb iPad2 for each winner. The goal of this grant is to assist in the travel or other expenses of a student working in the area of OCT. For example to attend an OCT Conference such as the upcoming Photonics West conference in San Francisco on February 2nd 2013. To be eligible for this award, the applicant must be a student doing research in the area of Optical Coherence Tomography, the work submitted must be fairly recent and mainly the work of the student. Awards will ...
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  Mentions: Eric A. Swanson
5. St. Jude Medical to Fire 500 More Employees, Loses FFR Patent Infringement Case to Rival Volcano, OCT Competitor Terumo Starts Shipping, and Billionaire Insider Buys Stock
  
  Explore Optical Coherence Tomography News Nov 4 2012 Cardiology , Other Business News
  
  St Jude Medical announced it will lay off 500 more employees in its continuing effort to restructure in order to deal with slumping sales and other bad news such as a drop of $5B in market cap, a product recall on defibrillators wires, lost patent case against arch rival Volcano, increased competition in intravascular OCT, and more. See recent Article1 and Article2 . This 500 person cut is in addition to the 300 person cut just announced this past August when St. Jude Medical first announced a restructuring plan to deal with a tough 2nd quarter. Under the restructure St. Jude ...
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  Mentions: Terumo Corporation Volcano Corporation Eric A. Swanson
6. Some Historical Statistics on Companies in the Market of Optical Coherence Tomography Systems
  
  Explore Optical Coherence Tomography News Nov 3 2012 Other Business News
  
  There are over 36 OCT system companies in the market today in varying stages of maturity. There are other OCT companies that currently exist or started in this time period but are not listed here due to their small scale and/or company status. Many of those companies are listed here along with OCT component companies. There are even more startups and established companies in stealth mode looking to start new product lines. Figure 1 shows a graph of these 36 companies and the approximate time that significant resources were invested in new OCT product development efforts. Table 1 shows ...
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  Mentions: University of Toronto James G. Fujimoto Heliotis AG
7. Some Historical Statistics of USPTO Patents in the Field of Optical Coherence Tomography
  
  Explore Optical Coherence Tomography News Oct 30 2012 Patents
  
  Patents are obviously an important component of the OCT technology market place. Patents and the motives to file them have many roles. The motive for academics can be either to help enable a startup company the professor or student is involved in or to seek a share in the royalty fees by licensing to a company they are not involved in.[footnote 1] Many academics that start companies have licensed patents they authored from their institution, usually under exclusive terms. Exclusive fundamental patents can be a key factor in solidifying equity financing from investors. In addition, patents can serve as ...
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  Mentions: Eric A. Swanson
8. Extracting and compensating dispersion mismatch in ultrahigh-resolution Fourier domain OCT imaging of the retina
  
  Explore opticsinfobase.org Oct 29 2012
  
  We present a numerical approach to extract the dispersion mismatch in ultrahigh-resolution Fourier domain optical coherence tomography (OCT) imaging of the retina. The method draws upon an analogy with a Shack-Hartmann wavefront sensor. By exploiting mathematical similarities between the expressions for aberration in optical imaging and dispersion mismatch in spectral / Fourier domain OCT, Shack-Hartmann principles can be extended from the two-dimensional paraxial wavevector space (or the x-y plane in the spatial domain) to the one-dimensional wavenumber space (or the z-axis in the spatial domain). For OCT imaging of the retina, different retinal layers, such as the retinal nerve fiber layer ...
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  Mentions: Massachusetts Institute of Technology James G. Fujimoto Bernhard Baumann
9. Some Historical Statistics of Academic Publications in the Field of Optical Coherence Tomography
  
  Explore Optical Coherence Tomography News Oct 13 2012
  
  Figure 1 shows an example of the dramatic growth in OCT papers since the first OCT paper by Huang, et al in 1991. Table 1 shows the data in more detail. A few things are very obvious, including that the rate of growth of OCT publications is dramatic (~200 papers/year) and the publications are dominated by ophthalmology, followed by general technology, and cardiology. The legend on the right hand side of the figure shows the number of cumulative publications by subject area from 1991 to 2012. In this analysis only title and abstract were considered. The result is that ...
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  Mentions: Eric A. Swanson
10. Duke University Wins an NIH Grant on Computer Aided Classification of Diabetic Macular Edema
  
  Explore Optical Coherence Tomography News Oct 8 2012 Ophthalmology , Funding
  
  Duke University Received a 2013 a NIH Grant for $384,751 on Computer Aided Classification of Diabetic Macular Edema. The principal investigator is Sina Farsiu. The program began in 2012 and ends in 2017. Below is a summary of the work. There are currently no well-established methods to identify and evaluate the mechanisms underlying diabetic macular edema (DME) pathobiology, one of the leading causes of blindness among working-age Americans. As such, the development of pathophysiology-specific therapeutic agents for DME is limited, and the selection of therapies personalized for individual patients remains subjective. Our long-term goal is to develop automated methods ...
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  Mentions: National Institutes of Health Duke University Sina Farsiu
11. OPTICAL COHERENCE TOMOGRAPHY/BIOIMAGING: One decade and $500M: The impact of federal funding on OCT - Part 2
  
  Explore BioOptics World Oct 19 2011
  
  EDITOR'S NOTE: This article is the follow-up article to "One decade and $500M: The impact of federal funding on OCT—Part 1," which appears in the September/October 2011 issue of BioOptics World. Over the past decade, governments around the world have invested hundreds of millions of dollars in research and development involving optical coherence tomography (OCT). Part Two of this two-part article explores the return on that investment in terms of product and economic growth in the for-profit sector. By Eric A. Swanson As discussed in Part 1 of this article, determining the impact of research dollars for ...
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  Mentions: University of Toronto Massachusetts Institute of Technology Tomophase Corporation
12. Optical Coherence Tomography/Bioimaging: One decade and $500M: The impact of federal funding on OCT—Part 1
  
  Explore BioOptics World Sep 16 2011 Funding
  
  Over the past decade, governments around the world have invested hundreds of millions of dollars in research and development involving optical coherence tomography (OCT). Part One of this two-part article explores where the money has come from, and where it has gone, and begins to uncover the return on that investment—which will be further explored in Part Two.
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  Mentions: National Cancer Institute Massachusetts Institute of Technology National Institutes of Health
13. Ophthalmic OCT Reaches $1 Billion Per Year: But reimbursement clampdown clouds future innovation.
  
  Explore retinalphysician.com May 17 2011 Ophthalmology , Other Business News
  
  Long gone are the days when a new medical product could be easily introduced based solely on improved patient outcomes. To optimize the probability of success, a new product now needs to demonstrate that it can both improve patient outcomes and reduce costs. To the clinical practice manager, an attractive product will need to recoup its cost in the near term and generate revenues in a predictable and easily quantifiable manner, in addition to improving the quality of care. Optical coherence tomography has been an unqualified success in ophthalmology, where it is in daily use worldwide. There are tens of ...
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  Mentions: University of Pittsburgh Michelson Diagnostics David Huang
14. Scanning miniature optical probes with optical distortion correction and rotational control
  
  Explore uspto.gov May 10 2005 Patents , Probes
  
  Optical probes having a diameter less than substantially 500 .mu.m for use in scanning light from a long, highly flexible fiber to a sample. In one embodiment the probe includes a viscous damping fluid suitable to prevent non-uniform rotational distortion (NURD).
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  Mentions: Joseph M. Schmitt Chris L. Petersen Eric A. Swanson
15. Scanning Miniature Optical Probes With Optical Distortion Correction And Rotational Control (Wo 2004/010856)
  
  Explore wipo.int Feb 5 2004 Patents , Probes
  
  The invention relates to an optical probe (130) including a sheath; a flexible, bi-directionally rotatable optical tansmission system (10, 135, 137) positioned within the sheath (44); and a viscous damping fluid (140) located in the sheath. The optical transmission system is capable of transmitting, focussing and collecting lignt of a predetermined range of wavelengths. the sheath and the viscous damping fluid are transpatent to at least some of the wavelengths of that light. The index of refracion of the viscous fluid is typically chosen to remove the optical effects induces by propagation through said sheath. Optical probes having a diameter ...
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  Mentions: Joseph M. Schmitt Chris L. Petersen Eric A. Swanson
16. Fiber optic needle probes for optical coherence tomography imaging
  
  Explore uspto.gov May 13 2003 Patents , Probes
  
  A fiber optic needle probe for measuring or imaging the internal structure of a specimen includes a needle defining a bore, an optical fiber substantially positioned within the bore, and a beam director in optical communication with the optical fiber. At least a portion of the wall of the needle is capable of transmitting light. The beam director directs light from the optical fiber to an internal structure being imaged and receives light from the structure through a transparent portion of the wall. An actuating device causes motion of any, or all of, the needle, optical fiber, and beam director ...
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  Mentions: Massachusetts Institute of Technology James G. Fujimoto Mark E. Brezinski
17. Freezing point measurement with OCDR and OCT technology
  
  Explore uspto.gov Apr 22 2003 Patents
  
  An invention pertaining to the measurement of the freezing point of substances using OCDR and OCT technology.
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  Mentions: Massachusetts Institute of Technology Eric A. Swanson
18. Fiber optic imaging endoscope interferometer with at least one faraday rotator
  
  Explore uspto.gov Dec 31 2002 Gastroenterology , Patents , Probes
  
  An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elongated housing defining a bore; a rotatable single mode optical fiber having a proximal end and a distal end positioned within and extending the length of the bore of the elongated housing; and an optical system coupled to the distal end of the rotatable single mode optical fiber, positioned to transmit the optical radiation from the single ...
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  Mentions: Guillermo J. Tearney Brett E. Bouma Massachusetts Institute of Technology
19. Methods and apparatus for forward-directed optical scanning instruments
  
  Explore uspto.gov Nov 26 2002 Gastroenterology , Patents , Probes
  
  An imaging system for performing forward scanning imaging for application to therapeutic and diagnostic devises used in medical procedures. The imaging system includes forward directed optical coherence tomography (OCT), and non-retroreflected forward scanning OCT. Also interferometric imaging and ranging techniques and fluorescent, Raman, two-photon, and diffuse wave imaging can be used. The forward scanning mechanisms include a cam attached to a motor, pneumatic devices, a pivoting device, piezoelectric transducers, electrostatic driven slides for substantially transverse scanning; counter-rotating prisms, and offset lenses are used for arbitrary scanning. The imaging system of the invention is applied to hand held probes including probes ...
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  Mentions: Guillermo J. Tearney Brett E. Bouma Massachusetts Institute of Technology
20. Ultra-small optical probes, imaging optics, and methods for using same
  
  Explore uspto.gov Sep 3 2002 Cardiology , Gastroenterology , Patents
  
  Ultra-small optical probes comprising a single-mode optical fiber and a lens which has substantially the same diameter as the optical fiber. The optical fiber and lens are positioned in a probe housing which is in the form of an insertional medical device such as a guidewire. Connector elements are provided to facilitate the attachment of the probe to an optical system and the quick disconnection of the probe from the optical system. The probe is used to obtain optical measurements in situ in the body of an organism and can be used to guide interventional procedures by a surgeon.
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  Mentions: Chris L. Petersen Eric A. Swanson David Kelly
21. Methods and apparatus for high speed longitudinal scanning in imaging systems
  
  Explore uspto.gov Feb 20 2001 Patents
  
  An imaging system wherein an optical signal is transmitted to both a sample to be measured and a rotating element which is calibrated to the system. A return signal is detected by the system, and a scan analyzer and correction unit uses the system calibration information along with synchronization information to correct for return signal degradation or errors due to imperfections in the rotating element in real time. This allows for an accurate measurement of the sample. The system can also include a coarse path-length adjustment unit to allow the system to track a region of interest within a sample ...
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  Mentions: Chris L. Petersen Eric A. Swanson St. Jude Medical
22. Method and apparatus for performing optical frequency domain reflectometry
  
  Explore uspto.gov Dec 12 2000 Patents , Tunable Sources
  
  Method of performing OFDR on a sample comprising steps of: providing an external-cavity frequency-tuned laser having an optical cavity of effective length; tuning the laser to generate a change in wavelength; changing the effective length of the optical cavity proportionally to the change in wavelength so as to tune the longitudinal cavity mode frequency at the same rate as the wavelength is changed; directing light from the laser onto the sample; receiving light reflected from the sample; combining light reflected from the sample with light from the external-cavity frequency-tuned laser; detecting the combined light and generating a beat signal in ...
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  Mentions: Massachusetts Institute of Technology Eric A. Swanson
23. Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope
  
  Explore uspto.gov Oct 17 2000 Cardiology , Gastroenterology , Patents , Probes
  
  An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elongated housing defining a bore; a rotatable single mode optical fiber having a proximal end and a distal end positioned within and extending the length of the bore of the elongated housing; and an optical system coupled to the distal end of the rotatable single mode optical fiber, positioned to transmit the optical radiation from the single ...
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  Mentions: Guillermo J. Tearney Brett E. Bouma Massachusetts Institute of Technology
24. Method and apparatus for performing optical measurements using a rapidly frequency-tuned laser
  
  Explore uspto.gov Sep 21 1999 Patents , Tunable Sources
  
  An optical system, in one embodiment including an external-cavity frequency-tuned laser having a tunable longitudinal cavity mode and a center tunable wavelength. The external-cavity frequency-tuned laser includes an optical cavity, an optical gain medium positioned within the optical cavity, and a rapid tuning wavelength selecting device positioned to receive light from the optical gain medium and adapted to return selected wavelengths of light to the optical gain medium. The external-cavity frequency-tuned laser is substantially continuously tunable and the tunable wavelength selecting device tunes the center wavelength of the external-cavity frequency-tuned laser at the same rate as the longitudinal cavity mode ...
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  Mentions: Massachusetts Institute of Technology Eric A. Swanson
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