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    1. Mentioned In 592 Articles

    2. Controlling for Artifacts in Widefield Optical Coherence Tomography Angiography Measurements of Non-Perfusion Area

      Explore Nature Publishing Group Ophthalmology
      Controlling for Artifacts in Widefield Optical Coherence Tomography Angiography Measurements of Non-Perfusion Area
      The recent clinical adoption of optical coherence tomography (OCT) angiography (OCTA) has enabled non-invasive, volumetric visualization of ocular vasculature at micron-scale resolutions. Initially limited to 3mm3mm and 6mm6mm fields-of-view (FOV), commercial OCTA systems now offer 12mm12mm, or larger, imaging fields. While larger FOVs promise a more complete visualization of retinal disease, they also introduce new challenges to the accurate and reliable interpretation of OCTA data. In particular, because of vignetting ...
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      Mentions: Massachusetts Institute of Technology James G. Fujimoto Andre J. Witkin

    3. Massachusetts Institute of Technology Receives NIH Grant for Novel Diagnostics with Optical Coherence Tomography.

      Explore Optical Coherence Tomography News Funding
      Massachusetts Institute of Technology Receives NIH Grant for Novel Diagnostics with Optical Coherence Tomography.
      ...submission of a competing renewal application for an ongoing collaborative program among investigators at the Massachusetts Institute of Technology, New England Eye Center and University of Pittsburgh Medical Center Eye ...
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      Mentions: University of Pittsburgh Massachusetts Institute of Technology National Institutes of Health

    4. Healed Culprit Plaques in Patients With Acute Coronary Syndrome

      Explore onlinejacc.org Cardiology
      Healed Culprit Plaques in Patients With Acute Coronary Syndrome
      ackground Healed plaques, morphologically characterized by a layered phenotype, are frequently found in subjects with sudden cardiac death. However, in vivo data are lacking. Objectives The purpose of this study was to determine the prevalence, morphological characteristics, and clinical significance of healed culprit plaques in patients with acute coronary syndromes (ACS) using optical coherence tomography (OCT). Methods A total of 376 ACS patients (252 ST-segment elevation myocardial infarction [MI] and ...
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      Mentions: Massachusetts Institute of Technology James G. Fujimoto Mount Sinai School of Medicine

    5. Post-doctoral Associate Positions in Biophotonics / Biomedical Optical Imaging at Washington University in St. Louis

      Explore Optical Coherence Tomography News Jobs & Studentships
      Post-doctoral Associate Positions in Biophotonics / Biomedical Optical Imaging at Washington University in St. Louis
      ...h.  After graduation, he joined Professor James G. Fujimoto's Laser Medicine and Medical Imaging Group at the Massachusetts Institute of Technology (MIT) as a postdoctoral associate. In 2012, Dr. Zhou joined the faculty ...
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      Mentions: Massachusetts Institute of Technology National Institutes of Health James G. Fujimoto

    7. Balloon catheter-based radiofrequency ablation monitoring in porcine esophagus using optical coherence tomography

      Explore OSA | OSA Publishing Gastroenterology , Probes
      Balloon catheter-based radiofrequency ablation monitoring in porcine esophagus using optical coherence tomography
      We present a microscopic image guidance platform for radiofrequency ablation (RFA) using a clinical balloon-catheter-based optical coherence tomography (OCT) system, currently used in the surveillance of Barretts esophagus patients. Our integrated thermal therapy delivery and monitoring platform consists of a flexible, customized bipolar RFA electrode array designed for use with a clinical balloon OCT catheter and a processing algorithm to accurately map the thermal coagulation process. Non-uniform rotation distortion was ...
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      Mentions: Brett E. Bouma Massachusetts Institute of Technology Massachusetts General Hospital

    8. Comparing the Risk Factors of Plaque Rupture and Failed Plaque Healing in Acute Coronary Syndrome

      Explore The JAMA Network Cardiology
      Comparing the Risk Factors of Plaque Rupture and Failed Plaque Healing in Acute Coronary Syndrome
      The article by Vergallo et al 1 in this issue of JAMA Cardiology supports a hypothesis that healed plaques are a marker for reduced acute coronary syndrome (ACS) risk. This commentary expands on this idea by examining a mechanistic hypothesis of their results beyond looking at healing just as a marker. Specifically, failed healing, which correlated in the study by Vergallo et al 1 with long core axial extent, predisposes ...
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      Mentions: Brigham and Women’s Hospital Massachusetts Institute of Technology Mark E. Brezinski

    9. Beth Israel Deaconess Medical Center Receives NIH Grant for Intravascular Molecular-Structural Imaging of Coronary Stent Pathobiology

      Explore Optical Coherence Tomography News Cardiology , Funding
      Beth Israel Deaconess Medical Center Receives NIH Grant for Intravascular Molecular-Structural Imaging of Coronary Stent Pathobiology
      ...esign — Dr. Gary Tearney (MGH), Dr. Peter Libby (Brigham and Women's Hospital), and Dr. Elazer Edelman (Massachusetts Institute of Technology) — and will help guide him scientifically and in his career develo...
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      Mentions: Guillermo J. Tearney Beth Israel Deaconess Medical Center Massachusetts Institute of Technology

    10. Extended Coherence Length and Depth Ranging Using a Fourier-Domain Mode-Locked Frequency Comb and Circular Interferometric Ranging

      Explore journals.aps.org Tunable Sources
      Extended Coherence Length and Depth Ranging Using a Fourier-Domain Mode-Locked Frequency Comb and Circular Interferometric Ranging
      Fourier-domain mode locking has been a popular laser design for high-speed optical-frequency-domain imaging (OFDI), but achieving long coherence lengths, and therefore imaging range, has been challenging. The narrow linewidth of a Fourier-domain mode-locked (FDML) frequency-comb (FC) laser could provide an attractive platform for high-speed as well as long-range OFDI. Unfortunately, aliasing artifacts arising from signals beyond the principal measurement depth of the free spectral range have prohibited the use of ...
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      Mentions: Brett E. Bouma Massachusetts Institute of Technology Massachusetts General Hospital

    11. Summary of 6th International Meeting on OCT Angiography & Advances in OCT in Rome December 2018: A Tremendous Success

      Explore Optical Coherence Tomography News
      Summary of 6th International Meeting on OCT Angiography & Advances in OCT in Rome December 2018: A Tremendous Success
      On December 14 and 15 2018, over 1400 ophthalmologists participated in Rome at tha most important meeting on OCT and OCT Angiography. the 6th international meeting on OCT Angiography, advances in OCT . The organizer, Dr Lumbroso has, since he started to organize these meetings, a well-defined objective: informing ophthalmologist in any country on the new clinical possibilities of Ocular imaging. The policy is to invite the best speakers in the ...
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      Mentions: Philip J. Rosenfeld Massachusetts Institute of Technology James G. Fujimoto

    12. QUANTIFICATION OF RETINAL CAPILLARY NONPERFUSION IN DIABETICS USING WIDE-FIELD OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      Explore LWW Online Ophthalmology
      QUANTIFICATION OF RETINAL CAPILLARY NONPERFUSION IN DIABETICS USING WIDE-FIELD OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY
      Purpose: To combine advances in high-speed, wide-field optical coherence tomography angiography ( OCTA ) with image processing methods for semiautomatic quantitative analysis of capillary nonperfusion in patients with diabetic retinopathy (DR). Methods: Sixty-eight diabetic patients (73 eyes), either without retinopathy or with different degrees of retinopathy, were prospectively recruited for volumetric swept-source OCTA imaging using 12 mm 12 mm fields centered at the fovea. A custom, semiautomatic software algorithm was used to ...
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      Mentions: Massachusetts Institute of Technology James G. Fujimoto Andre J. Witkin

    13. A Mechanical Approach for Smooth Surface Fitting to Delineate Vessel Walls in Optical Coherence Tomography Images

      Explore IEEE Xplore Cardiology
      A Mechanical Approach for Smooth Surface Fitting to Delineate Vessel Walls in Optical Coherence Tomography Images
      Automated analysis of vascular imaging techniques is limited by the inability to precisely determine arterial borders. Intravascular optical coherence tomography (OCT) offers unprecedented detail of artery wall structure and composition, but does not provide consistent visibility of the outer border of the vessel due to limited penetration depth. Existing interpolation and surface fitting methods prove insufficient to accurately fill the gaps between the irregularly-spaced and sometimes unreliably-identified visible segments of ...
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      Mentions: Brigham and Women’s Hospital Massachusetts Institute of Technology Harvard University

    14. Computer-Aided Analysis of Gland-Like Subsurface Hyposcattering Structures in Barrett’s Esophagus Using Optical Coherence Tomography

      Explore MDPI Open Access Journals Platform Gastroenterology
      Computer-Aided Analysis of Gland-Like Subsurface Hyposcattering Structures in Barrett’s Esophagus Using Optical Coherence Tomography
      (1) Background: Barretts esophagus (BE) is a complication of chronic gastroesophageal reflux disease and is a precursor to esophageal adenocarcinoma. The clinical implication of subsurface glandular structures of Barretts esophagus is not well understood. Optical coherence tomography (OCT), also known as volumetric laser endomicroscopy (VLE), can assess subsurface glandular structures, which appear as subsurface hyposcattering structures (SHSs). The aim of this study is to develop a computer-aided algorithm and apply ...
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      Mentions: Massachusetts Institute of Technology James G. Fujimoto Harvard University

    15. Colocalization of neurons in optical coherence microscopy and Nissl-stained histology in Brodmann’s area 32 and area 21

      Explore Home - Springer Neurology
      Colocalization of neurons in optical coherence microscopy and Nissl-stained histology in Brodmann’s area 32 and area 21
      Optical coherence tomography is an optical technique that uses backscattered light to highlight intrinsic structure, and when applied to brain tissue, it can resolve cortical layers and fiber bundles. Optical coherence microscopy (OCM) is higher resolution (i.e., 1.25 m) and is capable of detecting neurons. In a previous report, we compared the correspondence of OCM acquired imaging of neurons with traditional Nissl stained histology in entorhinal cortex layer ...
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      Mentions: Massachusetts Institute of Technology Massachusetts General Hospital Boston University

    16. Optic axis mapping with catheter-based polarization-sensitive optical coherence tomography

      Explore OSA | OSA Publishing Cardiology , Probes
      Optic axis mapping with catheter-based polarization-sensitive optical coherence tomography
      Birefringence offers an intrinsic contrast mechanism related to the microstructure and arrangement of fibrillary tissue components. Here we present a reconstruction strategy to recover not only the scalar amount of birefringence, but also its optic axis orientation as a function of depth in tissue from measurements with catheter-based polarization-sensitive optical coherence tomography. A polarization symmetry constraint, intrinsic to imaging in the backscatter direction, facilitates the required compensation for wavelength-dependent transmission ...
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      Mentions: Brett E. Bouma Massachusetts Institute of Technology Massachusetts General Hospital
    17. 1-15 of 592 1 2 3 4 ... 38 39 40 »
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  4. About Massachusetts Institute of Technology

    Massachusetts Institute of Technology

    Massachusetts Institute of Technology (MIT) is a private, coeducational research university located in Cambridge, Massachusetts. MIT has five schools and one college, containing 32 academic departments, with a strong emphasis in theoretical, applied, and interdisciplinary scientific and technological research.  Laser Medicine and Medical Imaging Group at MIT.  The RLE Laser Medicine and Medical Imaging Group and its close collaborators were the originators of optical coherence tomography (OCT), a diagnostic technology now used in a growing number of medical fields. The group currently works to further understand and exploit the capabilities of OCT technology, with ongoing investigations in topics related to optical coherence microscopy development and optical biopsy using OCT.

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