1. Massachusetts General Hospital

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    1. Mentioned In 728 Articles

    2. Resolving absolute depth in circular-ranging optical coherence tomography by using a degenerate frequency comb

      Resolving absolute depth in circular-ranging optical coherence tomography by using a degenerate frequency comb
      In Fourier-domain optical coherence tomography, an interference signal is generated that spans an RF bandwidth proportional to the product of three parameters: the imaging range, the imaging speed, and the inverse of the axial resolution. Circular-ranging optical coherence tomography (CR-OCT) architectures were introduced to ease long-range imaging by decoupling the imaging range from the signal RF bandwidth. As a consequence, present CR-OCT systems resolve the relative, but not the absolute ...
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    3. Massachusetts General Hospital Receives NIH Grant for Unique Value of Real-Time Shear Stress To Enhance Coronary Disease Management

      Massachusetts General Hospital Receives NIH Grant for Unique Value of Real-Time Shear Stress To Enhance Coronary Disease Management
      ...eading to more informed clinical decision-making and better patient outcomes.

      Massachusetts General Hospital Receives a 2020 NIH Grant for $771,279 for Unique Value of Real-Time Shear Stre...

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    4. Massachusetts General Hospital Receives NIH Grant for A Tethered Capsule Endoscopic-Endomicroscopic (TEEM) Approach for Improving Upper GI Tract Diagnosis

      Massachusetts General Hospital Receives NIH Grant for A Tethered Capsule Endoscopic-Endomicroscopic (TEEM) Approach for Improving Upper GI Tract Diagnosis
      ...hnology meets the clinical requirements for upper GI tract screening (Aim 3).

      Massachusetts General Hospital Receives a 2020 NIH Grant for $627,739 for A Tethered Capsule Endoscopic-Endomi...

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

      Beth Israel Deaconess Medical Center Receives NIH Grant for Intravascular Molecular-Structural Imaging of Coronary Stent Pathobiology
      ...rly career faculty member at Beth Israel Deaconess Medical Center (BIDMC) and Massachusetts General Hospital (MGH), and an Instructor in Medicine at Harvard Medical School, Boston, Massachusetts. He is a graduate of the ...
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    6. Early versus delayed treatment with ticagrelor on residual thrombus after percutaneous coronary intervention in patients presenting with non-ST-elevation acute coronary syndrome an optical coherence tomography study

      Early versus delayed treatment with ticagrelor on residual thrombus after percutaneous coronary intervention in patients presenting with non-ST-elevation acute coronary syndrome an optical coherence tomography study
      Objective The level of inhibition of platelet aggregation immediately before percutaneous coronary intervention (PCI) is known to be related to early periprocedural outcomes. Ticagrelor is a reversible P2Y12 inhibitor that provides faster and more effective platelet inhibition compared to clopidogrel. This study sought to compare the antiplatelet effect on residual thrombus between early vs. delayed administration of ticagrelor following PCI in patients presenting with non-ST-elevation acute coronary syndromes (NSTE-ACS). Methods ...
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    7. Characteristics of non-culprit plaques in acute coronary syndrome patients with layered culprit plaque

      Characteristics of non-culprit plaques in acute coronary syndrome patients with layered culprit plaque
      Aims Layered plaques represent signs of previous plaque destabilization. A recent study showed that acute coronary syndrome (ACS) patients with layered culprit plaque have more vulnerability at the culprit lesion and systemic inflammation. We aimed to compare the characteristics of non-culprit plaques between patients with or without layered plaque at the culprit lesion. We also evaluated the characteristics of layered non-culprit plaques, irrespective of culprit plaque phenotype. Methods and results ...
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    8. All fiber polarization insensitive detection for spectrometer based optical coherence tomography using optical switch

      All fiber polarization insensitive detection for spectrometer based optical coherence tomography using optical switch
      Polarization dependent image artifacts are common in optical coherence tomography imaging. Polarization insensitive detection scheme for swept source based optical coherence tomography systems is well established but is yet to be demonstrated for all fiber spectrometer-based Fourier domain optical coherence tomography systems. In this work, we present an all fiber polarization insensitive detection scheme for spectrometer based optical coherence tomography systems. Images from chicken breast muscle tissue were acquired to ...
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    9. Stable multi-megahertz circular-ranging optical coherence tomography at 1.3 µm

      Stable multi-megahertz circular-ranging optical coherence tomography at 1.3 µm
      In Fourier-domain optical coherence tomography (OCT), the finite bandwidth of the acquisition electronics constrains the depth range and speed of the system. Circular-ranging (CR) OCT methods use optical-domain compression to surpass this limit. However, the CR-OCT system architectures of prior reports were limited by poor stability and were confined to the 1.55 m wavelength range. In this work, we describe a novel CR-OCT architecture that is free from these ...
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    10. Capillary Refill—The Key to Assessing Dermal Capillary Capacity and Pathology in Optical Coherence Tomography Angiography

      Capillary Refill—The Key to Assessing Dermal Capillary Capacity and Pathology in Optical Coherence Tomography Angiography
      Background/Objectives: Standard optical coherence tomography angiography (OCTA) has been limited to imaging blood vessels actively undergoing perfusion, providing a temporary picture of surface microvasculature. Capillary perfusion in the skin is dynamic and changes in response to the surrounding tissue's respiratory, nutritional, and thermoregulatory needs. Hence, OCTA often represents a given perfusion state without depicting the actual extent of the vascular network. Here we present a method for obtaining ...
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    11. Postdoctoral Research Fellowships (In Vivo Microscopy) at the Massachusetts General Hospital

      Postdoctoral Research Fellowships (In Vivo Microscopy) at the Massachusetts General Hospital
      ...scopy is available in the Tearney Lab (www.tearneylab.org) at the Massachusetts General Hospital (MGH) in the Wellman Center for Photomedicine. This appointment will be made at the rank of postdoctoral fellow at Harvard ...
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    12. Postdoctoral Research Fellowships (Optical Coherence Tomography) at Massachusetts General Hospital

      Postdoctoral Research Fellowships (Optical Coherence Tomography) at Massachusetts General Hospital
      ...(OCT) is available in the Tearney Lab (www.tearneylab.org) at the Massachusetts General Hospital (MGH) in the Wellman Center for Photomedicine. This appointment will be made at the rank of postdoctoral fellow or instruct...
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    13. Intravascular Polarimetry in Patients With Coronary Artery Disease

      Intravascular Polarimetry in Patients With Coronary Artery Disease
      Objectives The aims of this first-in-human pilot study of intravascular polarimetry were to investigate polarization properties of coronary plaques in patients and to examine the relationship of these features with established structural characteristics available to conventional optical frequency domain imaging (OFDI) and with clinical presentation. Background Polarization-sensitive OFDI measures birefringence and depolarization of tissue together with conventional cross-sectional optical frequency domain images of subsurface microstructure. Methods Thirty patients undergoing polarization-sensitive ...
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    14. Intravascular Polarimetry for Tissue Characterization of Coronary Atherosclerosis

      Intravascular Polarimetry for Tissue Characterization of Coronary Atherosclerosis
      The microscopic tissue structure and organization influence the polarization of light. Intravascular polarimetry leverages this compelling intrinsic contrast mechanism by using polarization-sensitive optical frequency domain imaging to measure the polarization properties of the coronary arterial wall. Tissues rich in collagen and smooth muscle cells appear birefringent, while the presence of lipid causes depolarization, offering quantitative metrics related to the presence of important components of coronary atherosclerosis. Here, we review the ...
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    15. 1-15 of 728 1 2 3 4 ... 47 48 49 »
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  2. About Massachusetts General Hospital

    Massachusetts General Hospital

    Massachusetts General Hospital is a teaching hospital of Harvard Medical School and biomedical research facility in Boston, Massachusetts. It is owned and operated by Partners HealthCare (which also owns Brigham and Women's Hospital and North Shore Medical Center).

  3. Quotes about Massachusetts General Hospital

    1. We are excited to see the publication of this data from our collaborators at Massachusetts General Hospital that clearly demonstrate the imaging technology can produce valuable images of esophageal tissue...We look forward to moving ahead with continued development of this exciting new technology.
      Charles Carignan in NinePoint Medical Imaging Technology Highlighted in Nature Medicine