1. Articles in category: Cardiology

    3793-3816 of 3906 « 1 2 ... 156 157 158 159 160 161 162 163 »
    1. Volcano Announces Closing of CardioSpectra Acquisition

      SAN DIEGO, Dec. 18 /PRNewswire-FirstCall/ -- Volcano Corporation (Nasdaq: VOLC), a provider of intravascular ultrasound (IVUS) and functional measurement (FM) products designed to enhance the diagnosis and treatment of vascular and structural heart disease, announced today that it has completed its previously announced acquisition of CardioSpectra, Inc. CardioSpectra is a privately-held company developing innovative Optical Coherence Tomography (OCT) technology. CardioSpectra's unique OCT imagin
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    2. Volcano-CardioSpectra deal could be worth up to $63 million.

      Volcano Corp., a maker of products designed to diagnose and treat heart disease, said Dec. 10 that it signed an agreement to acquire CardioSpectra, a privately held company based in San Antonio, for a potential $63 million. Under terms of the agreement, Volcano will acquire outstanding equity interests in CardioSpectra for $25 million in cash, plus additional payments of up to $38 million, given it meets certain predetermined benchmarks. Volcano makes products that allow cardiologists to get a clearer picture of what is happening inside the coronary arteries, where plaque can build up and cause heart attacks. Its colorized technology ...
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    3. Phase-resolved optical coherence tomography and optical Doppler tomography for imaging blood flow in human skin with fast scanning speed and high velocity sensitivity.

      We have developed a novel phase-resolved optical coherence tomography (OCT) and optical Doppler tomography (ODT) system that uses phase information derived from a Hilbert transformation to image blood flow in human skin with fast scanning speed and high velocity sensitivity. Using the phase change between sequential scans to construct flow-velocity imaging, this technique decouples spatial resolution and velocity sensitivity in flow images and increases imaging speed by more than 2 orders of magnitude without compromising spatial resolution or velocity sensitivity. The minimum flow velocity that can be detected with an axial-line scanning speed of 400 Hz and an average phase ...
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    4. Imaging and velocimetry of the human retinal circulation with color Doppler optical coherence tomography.

      Related Articles Imaging and velocimetry of the human retinal circulation with color Doppler optical coherence tomography. Opt Lett. 2000 Oct 1;25(19):1448-50 Authors: Yazdanfar S, Rollins AM, Izatt JA Noninvasive monitoring of blood flow in retinal microcirculation may elucidate the progression and treatment of ocular disorders, including diabetic retinopathy, age-related macular degeneration, and glaucoma. Color Doppler optical coherence tomography (CDOCT) is a technique that allows simultaneous micrometer-scale resolution cross-sectional imaging of tissue microstructure and blood flow in living tissues. CDOCT is demonstrated for the first time in living human subjects for bidirectional blood-flow mapping of retinal vasculature. PMID ...
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    5. Volcano exec exercises options

      Volcano Corp. president and chief executive officer Scott Huennekens netted $295,875 through purchases and sales of his company's stock Monday, according to a document he filed with the U.S. Securities and Exchange Commission. Huennekens exercised options for 20,000 shares at 11 cents per share and sold 20,000 shares at prices ranging from $14.77 to $15 each. The sales were part of a company trading plan adopted on Nov. 16, 2006, according to the document. The Rancho Cordova company (Nasdaq: VOLC) makes equipment for creating images of blood vessels and diagnosing cardiovascular disease. Yesterday the ...
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    6. CardioSpectra gets boost in OCT development from Volcano

      December 11, 2007, San Diego, CA--Volcano Corporation , a provider of intravascular ultrasound (IVUS) and functional measurement (FM) products designed to enhance the diagnosis and treatment of vascular and structural heart disease, will acquire CardioSpectra (San Antonio, TX), a privately held company developing innovative optical coherence tomography (OCT) technology.
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    7. Volcano Announces Agreement to Acquire CardioSpectra

      SAN DIEGO, Dec 10, 2007 /PRNewswire-FirstCall via COMTEX News Network/ -- Volcano Corporation (Nasdaq: VOLC), a provider of intravascular ultrasound (IVUS) and functional measurement (FM) products designed to enhance the diagnosis and treatment of vascular and structural heart disease, said today that it has reached a definitive agreement to acquire CardioSpectra, Inc., a privately-held company developing innovative Optical Coherence Tomography (OCT) technology. CardioSpectra's unique OCT imagin
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    8. Volcano Announces Agreement to Acquire CardioSpectra

      CardioSpectra's ultra-high-resolution OCT offering will enhance Volcano's technology leadership position and potential for product pipeline expansion SAN DIEGO, Dec. 10 /PRNewswire-FirstCall/ -- Volcano Corporation (Nasdaq: VOLC), a provider of intravascular ultrasound (IVUS) and functional measurement (FM) products designed to enhance the diagnosis and treatment of vascular and structural heart disease, said today that it has reached a definitive agreement to acquire CardioSpectra, Inc., a priv
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    9. LightLab Imaging Announces Live Broadcast of First-In-Man Cases with Next Generation OCT Coronary Imaging System

      Company Press Release: contact Wayne K. Smith, LightLab Imaging 978-692-1408 wsmith@lightlabimaging.com WESTFORD, Mass. (November 5, 2007) - LightLab Imaging, Inc. today announced performance of first-in-man cases with its next generation OCT Coronary Imaging System. The cases were broadcast live from Siegburg, Germany, to an audience of over 1,000 attendees in the Main Arena of the
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    10. Optical coherence tomography permits detailed characterization of vulnerable plaques

      Intravascular optical coherence tomography (OCT) is an optical analog of intravascular ultrasonography (IVUS)—the current standard invasive method for diagnosing coronary artery disease. OCT has a markedly higher resolution than IVUS, and can resolve microstructures of atherosclerotic plaques that are thought to be associated with plaque vulnerability, such as thin fibrous caps, lipid cores and intracoronary thrombi. To determine whether OCT is superior to IVUS and coronary angioscopy for the evaluation of atherosclerotic plaques, Kubo et al. enrolled 30 patients with acute myocardial infarction and used each modality to analyze the culprit lesions.
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    11. Renowned cardiovascular specialist joins School of Medicine

      Renowned cardiovascular specialist joins School of Medicine
      Marco Costa Marco Costa, a world-renowned interventional cardiologist, has joined the faculty of Case Western Reserve University School of Medicine. He also will serve as the director of both Invasive Services and the Center for Research and Innovation for University Hospitals Case Medical Center's Heart & Vascular Institute. Costa was recruited to serve as the director of both Invasive Services and the Center for Research and Innov
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    12. Optical coherence tomography (oct) can successfully identify the ...

      A catheter-based imaging technology called optical coherence tomography (OCT) can successfully identify the characteristics of coronary plaques in patients with various cardiac symptoms. The report from researchers at Massachusetts ... Manz Automation AG successfully continues on-track growth by Simultaneous (simultaneous) @ Tue, 13 Nov 2007 03:20:06 -0600 The Court of Auditors quadrille by Simultaneous (simultaneous) @ Tue, 13 Nov 2007 02:20:08 -0600 China successfully launches new satellite by
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    13. Strategies to reduce intraluminal clot formation in endoscopically harvested saphenous veins

      Strategies to reduce intraluminal clot formation in endoscopically harvested saphenous veins Emile N. Brown, BS^a, Zachary N. Kon, BA^a, Richard Tran, BS^a, Nicholas S. Burris, BS^a, Junyen Gu, MD, PhD^a, Patrick Laird, BA^a, Philip S. Brazio, BS, BA^a, Seeta Kallam, MD^a, Kimberly Schwartz, RNFA, MBA^a, Lisa Bechtel, PA-C^b, Ashish Joshi, MD, MPH^c, Shaosong Zhang, MD, PhD^d, Robert S. Poston, MD^a^, ^a Department of Surgery, Division of Cardiac Surgery, University of Maryland School of Medi
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    14. Selectable eccentric remodeling and/or ablation of atherosclerotic material

      A catheter and catheter system for eccentric remodeling and/or removal of atherosclerotic material of a blood vessel of a patient include an elongate flexible catheter body with a radially expandable structure. A plurality of electrodes or other electrosurgical energy delivery surfaces can radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector near the distal end of the catheter body may measure circumferential atherosclerotic material distribution, and a power source selectively energizes the electrodes to eccentrically remodel the measured atherosclerotic material.
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    15. Optical coherence tomography (OCT) can successfully identify the characteristics of coronary plaques

      Optical coherence tomography (OCT) can successfully identify the characteristics of coronary plaques November 4th, 2007 | by admin | A catheter-based imaging technology called optical coherence tomography (OCT) can successfully identify the characteristics of coronary plaques in patients with various cardiac symptoms. The report from researchers at Massachusetts General Hospital (MGH) will appear in the journal Circulation. “More than 1.2 million people die from coronary artery disease every yea
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    16. Expandable laser catheter

      Expandable laser catheters for utilizing laser energy to remove obstructions from body passages are described. In one embodiment, the laser catheter includes a shaftway having a distal end including a flexible portion configured in a series of radial folds. Multiple optical fibers, configured to transmit laser energy, extend along the shaftway and are attached to the flexible portion. An inflatable, ring-shaped balloon is attached to the catheter within the flexible portion. In use, the catheter is inserted into a body passage such as an artery, and advanced until the distal end is adjacent to an obstruction. The balloon is inflated ...
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    17. System for medical examination or treatment

      The invention relates to a medical investigation and/or treatment system comprising: a catheter system, comprising a catheter (1, 7, 9), with a first sensor (4, 11) of an imaging system for optical coherence tomography with an optical fiber via which the light is directed and is radiated in the area of a catheter tip introduced into an area to be investigated, via which fiber reflection light is directed from an illuminated investigation area to a first image processing unit (22), a second sensor (3, 8, 10) of an intravascular ultrasound imaging system to transmit and receive sound pulses which ...
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      Mentions: Siemens
    18. Thinking inside the graft: applications of optical coherence tomography in coronary artery bypass grafting

      Emile N. Brown, Nicholas S. Burris, Junyan Gu et al. Recent advances in catheter-based optical coherence tomography (OCT) have provided the necessary resolution and acquisition speed for high-quality intravascular imaging. Complications associated with clearing blood from the vessel of a living patient have prevented its wider acceptance. We identify ... [J. Biomed. Opt. 12, 051704 (2007)] published Wed Oct 24, 2007.
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    19. In Vivo Optical Coherence Tomography (OCT) of Experimental Thrombosis in a Rabbit Carotid Model

      Background Plaque rupture with subsequent thrombosis is recognized as the underlying pathophysiology of most acute coronary syndromes. Thus, direct thrombus visualization in vivo may be beneficial for both diagnosis and guidance of therapy. We sought to test the feasibility of imaging acute thrombosis in vivo using OCT, in an experimental thrombosis animal model. Methods and Results Nine male New Zealand White rabbits (weight, ¡Ö3.0 kg) were made atherosclerotic with a high-cholesterol diet after injury of the right carotid artery endothelium. Thrombus was then induced with the use of Russell's viper venom (RVV) and histamine. Subsequently, OCT imaging of ...
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