1. Chris L. Petersen

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    1. Mentioned In 22 Articles

    2. Imaging system includes imaging probe and delivery devices

      Imaging system includes imaging probe and delivery devices
      An imaging system is provided comprising an imaging probe and at least one delivery device. The imaging probe comprises an elongate shaft, a rotatable optical core and an optical assembly. The elongate shaft comprises a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion. The rotatable optical core is positioned within the lumen of the elongate shaft and comprises a proximal end ...
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    3. Miniature optical elements for fiber-optic beam shaping

      Miniature optical elements for fiber-optic beam shaping
      In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical ...
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    4. Apparatus, systems, and methods of in-vivo blood clearing in a lumen

      Apparatus, systems, and methods of in-vivo blood clearing in a lumen
      In one aspect, the invention relates to a computer-implemented method of triggering optical coherence tomography data collection. The method includes collecting optical coherence tomography data with respect to a vessel using an optical coherence tomography probe disposed in the vessel; determining a clearing radius and a quality value for each frame of optical coherence tomography data collected for the vessel using a computer; determining if a blood clearing state has ...
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    5. Apparatus, Systems, And Methods Of In-Vivo Blood Clearing In A Lumen

      Apparatus, Systems, And Methods Of In-Vivo Blood Clearing In A Lumen
      In one aspect, the invention relates to a computer-implemented method of triggering optical coherence tomography data collection. The method includes collecting optical coherence tomography data with respect to a vessel using an optical coherence tomography probe disposed in the vessel; determining a clearing radius and a quality value for each frame of optical coherence tomography data collected for the vessel using a computer; determining if a blood clearing state has ...
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    6. Miniature Optical Elements For Fiber-Optic Beam Shaping

      Miniature Optical Elements For Fiber-Optic Beam Shaping
      In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical ...
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    7. Miniature Optical Elements For Fiber-Optic Beam Shaping

      Miniature Optical Elements For Fiber-Optic Beam Shaping
      In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical ...
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    8. Opto-acoustic imaging devices and methods

      Opto-acoustic imaging devices and methods
      In one aspect, the invention relates to a probe. The probe includes a sheath, a flexible, bi-directionally rotatable, optical subsystem positioned within the sheath, the optical subsystem comprising a transmission fiber, the optical subsystem capable of transmitting and collecting light of a predetermined range of wavelengths along a first beam having a predetermined beam size. The probe also includes an ultrasound subsystem, the ultrasound subsystem positioned within the sheath and ...
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    9. Apparatus, Systems, And Methods Of In-Vivo Blood Clearing In A Lumen

      Apparatus, Systems, And Methods Of In-Vivo Blood Clearing In A Lumen
      In one aspect, the invention relates to a computer-implemented method of triggering optical coherence tomography data collection. The method includes collecting optical coherence tomography data with respect to a vessel using an optical coherence tomography probe disposed in the vessel; determining a clearing radius and a quality value for each frame of optical coherence tomography data collected for the vessel using a computer; determining if a blood clearing state has ...
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    10. Optical coherence tomography apparatus and methods

      Optical coherence tomography apparatus and methods
      In one aspect, the invention relates to an imaging probe. The imaging probe includes an elongate body having a proximal end and distal end, the elongate body adapted to enclose a portion of a slidable optical fiber, the optical fiber having a longitudinal axis; and a first optical assembly attached to a distal end of the fiber. The first optical assembly includes a beam director adapted to direct light emitted ...
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    11. Imaging catheter with integrated reference reflector

      Imaging catheter with integrated reference reflector
      In part, the invention relates to a lens assembly. The lens assembly includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. In addition, the film surrounds a portion of the beam director.
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    12. Clinical studies of frequency domain optical coherence tomography in the coronary arteries: the first 200 patients

      Clinical studies of frequency domain optical coherence tomography in the coronary arteries: the first 200 patients
      We report clinical study results of three-dimensional (3D) in vivo imaging of human coronary arteries using frequency domain optical coherence tomography (FD-OCT). At the time of this report, over 2000 patients in over 10 countries have been imaged using FD-OCT systems and disposable fiberoptic catheters developed by LightLab Imaging Inc. The first commercial versions of the systems were introduced in Europe in May 2009. The system operates at 50,000 ...
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    13. Safety and feasibility of a new non-occlusive technique for facilitated intracoronary optical coherence tomography (OCT) acquisition in various clinical and anatomical scenarios

      Safety and feasibility of a new non-occlusive technique for facilitated intracoronary optical coherence tomography (OCT) acquisition in various clinical and anatomical scenarios
      To facilitate OCT images acquisition we developed a novel, simplified, non-occulsive technique based on manual infusion of a viscous isosmolar solution. The aims of the present study was to address the safety and efficacy of non-occulsive OCT images acquisition modality in a patient population with comples coronary lesions, and in various clinical sceanarios.
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    14. 1-15 of 22 1 2 »
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  2. About Chris L. Petersen

    Chris L. Petersen

    Chris Petersen as a Vice President of R&D at Gentuity