1. Mark Draelos

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    1. Mentioned In 7 Articles

    2. Robotics and Virtual Reality for Optical Coherence Tomography-Guided Ophthalmic Surgery and Diagnostics (Thesis)

      Robotics and Virtual Reality for Optical Coherence Tomography-Guided Ophthalmic Surgery and Diagnostics (Thesis)
      Ophthalmology is the only surgical specialty that routinely employs both microsurgical techniques and live intraoperative imaging, especially optical coherence tomography (OCT). Consequently, ophthalmic surgeons routinely face challenges in visualization and manipulation of small ocular tissues or in interpreting intraoperative imaging to guide their actions. This dissertation therefore seeks to advance the state-of-the-art in ophthalmic surgery with regards to manipulation, visualization, and interpretation. First, we address the interpretation challenge in ophthalmic ...
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    3. Toward Autonomous Robotic Micro-Suturing using Optical Coherence Tomography Calibration and Path Planning

      Toward Autonomous Robotic Micro-Suturing using Optical Coherence Tomography Calibration and Path Planning
      Robotic automation has the potential to assist human surgeons in performing suturing tasks in microsurgery, and in order to do so a robot must be able to guide a needle with sub-millimeter precision through soft tissue. This paper presents a robotic suturing system that uses 3D optical coherence tomography (OCT) system for imaging feedback. Calibration of the robot-OCT and robot-needle transforms, wound detection, keypoint identification, and path planning are all ...
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    4. Optical Coherence Tomography Guided Robotic Needle Insertion for Deep Anterior Lamellar Keratoplasty

      Optical Coherence Tomography Guided Robotic Needle Insertion for Deep Anterior Lamellar Keratoplasty
      Objective: Deep anterior lamellar keratoplasty (DALK) significantly reduces the post-transplantation morbidity in patients eligible for partial-thickness cornea grafts. The popular "big bubble" technique for DALK is so challenging, however, that a significant fraction of corneal pneumodissection attempts fail for surgeons without extensive DALK-specific experience, even with previous-generation cross-sectional optical coherence tomography (OCT) guidance. We seek to develop robotic, volumetric OCT-guided technology capable of facilitating or automating the difficult needle insertion ...
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    5. Feature of the Week 06/24/2018: Duke University Researchers Show Exciting Advances in Live OCT Volumes in Immersive Virtual Reality

      Feature of the Week 06/24/2018: Duke University Researchers Show Exciting Advances in Live OCT Volumes in Immersive Virtual Reality
      Virtual reality (VR) head-mounted displays are an attractive technology for viewing intrasurgical optical coherence tomography (OCT) volumes because they liberate surgeons from microscope oculars. We demonstrate real-time, interactive viewing of OCT volumes in a commercial HTC Vive immersive VR system using previously reported ray casting techniques. Furthermore, we show interactive manipulation and sectioning of volumes using handheld controllers and guidance of mock surgical procedures in porcine eyes exclusively within VR ...
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    6. Real-time visualization and interaction with static and live optical coherence tomography volumes in immersive virtual reality

      Real-time visualization and interaction with static and live optical coherence tomography volumes in immersive virtual reality
      Virtual reality (VR) head-mounted displays are an attractive technology for viewing intrasurgical optical coherence tomography (OCT) volumes because they liberate surgeons from microscope oculars. We demonstrate real-time, interactive viewing of OCT volumes in a commercial HTC Vive immersive VR system using previously reported ray casting techniques. Furthermore, we show interactive manipulation and sectioning of volumes using handheld controllers and guidance of mock surgical procedures in porcine eyes exclusively within VR ...
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    7. Review of intraoperative optical coherence tomography: technology and applications [Invited]

      Review of intraoperative optical coherence tomography: technology and applications [Invited]
      During microsurgery, en face imaging of the surgical field through the operating microscope limits the surgeons depth perception and visualization of instruments and sub-surface anatomy. Surgical procedures outside microsurgery, such as breast tumor resections, may also benefit from visualization of the sub-surface tissue structures. The widespread clinical adoption of optical coherence tomography (OCT) in ophthalmology and its growing prominence in other fields, such as cancer imaging, has motivated the development ...
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  2. About Mark Draelos

    Mark Draelos

    Mark Draelos is a Duke University student whose research focuses on new technologies for computer-assisted surgery guided by three-dimensional imaging. His current projects include intuitive teleoperation of surgical robots from arbitrary viewpoints and virtual reality. In the long term, he aspires to advance the development of medical technology in robotics and imaging.