268 resources related to Angioplasty
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The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore
The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2019, the 26th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.
The conference covers all aspects of the technology associated with ultrasound generation and detection and their applications.
Topics in RF/microwave power amplifiers
robotics, intelligent systems, automation, mechatronics, micro/nano technologies, AI,
The IEEE Reviews in Biomedical Engineering will review the state-of-the-art and trends in the emerging field of biomedical engineering. This includes scholarly works, ranging from historic and modern development in biomedical engineering to the life sciences and medicine enabled by technologies covered by the various IEEE societies.
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed technical content that covers all aspects of computer science, computer engineering, technology, and applications. Computer is a resource that practitioners, researchers, and managers can rely on to provide timely information about current research developments, trends, best practices, and changes in the profession.
Both general and technical articles on current technologies and methods used in biomedical and clinical engineering; societal implications of medical technologies; current news items; book reviews; patent descriptions; and correspondence. Special interest departments, students, law, clinical engineering, ethics, new products, society news, historical features and government.
Telemedicine, teleradiology, telepathology, telemonitoring, telediagnostics, 3D animations in health care, health information networks, clinical information systems, virtual reality applications in medicine, broadband technologies, and global information infrastructure design for health care.
LEOS '92 Conference Proceedings, 1992
Conference on Lasers and Electro-Optics Europe, 1994
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society, 1995
A flexible and miniaturized prototype microwave balloon angioplasty (MBA) catheter system has been developed for percutaneous transluminal coronary angioplasty (PTCA). The miniaturized antenna design is also suitable for applications involving localized hyperthermia for cancer treatment and microwave thermal ablation. The development program was sponsored by C.R. Bard, USCI division, Billerica, Massachusetts in collaboration with Dr. Robert Schwartz of the Mayo ...
Proceedings Computers in Cardiology, 1992
The authors describe a qualitative, in vivo validation of a solution to the inverse problem of cardiology using percutaneous transluminal coronary angioplasty as a model of transient ischemia in humans. Body surface potential mapping with 117 unipolar electrodes was used to collect torso potential distributions from patients with single-vessel coronary artery disease before, during, and after inflation of the balloon ...
IEEE Engineering in Medicine and Biology Magazine, 2008
The case involved two competing manufacturers of equipment used in procedures such as angioplasty for automatically injecting contrast media into a patient from a plastic syringe. Because the syringe can be subject to pressures of 1,000 lbf/in<sup>2</sup> or more, the conventional approach had been to house the syringe in a pressure jacket and to load the syringe into the jacket ...
A flexible and miniaturized prototype microwave balloon angioplasty (MBA) catheter system has been developed for percutaneous transluminal coronary angioplasty (PTCA). The miniaturized antenna design is also suitable for applications involving localized hyperthermia for cancer treatment and microwave thermal ablation. The development program was sponsored by C.R. Bard, USCI division, Billerica, Massachusetts in collaboration with Dr. Robert Schwartz of the Mayo clinic in Rochester, Minnesota and Dr. Ronald E. Vlietstral.
The authors describe a qualitative, in vivo validation of a solution to the inverse problem of cardiology using percutaneous transluminal coronary angioplasty as a model of transient ischemia in humans. Body surface potential mapping with 117 unipolar electrodes was used to collect torso potential distributions from patients with single-vessel coronary artery disease before, during, and after inflation of the balloon catheter. A boundary-element solution of the homogeneous inverse problem based on a realistic model of the human torso provided estimates of the epicardial potentials from which it was possible to locate regions of transient ischemia. These regions of estimated ischemia agreed well with those predicted on the basis of coronary angiograms and balloon placement.<<ETX>>
The case involved two competing manufacturers of equipment used in procedures such as angioplasty for automatically injecting contrast media into a patient from a plastic syringe. Because the syringe can be subject to pressures of 1,000 lbf/in<sup>2</sup> or more, the conventional approach had been to house the syringe in a pressure jacket and to load the syringe into the jacket from the back. Liebel-Flarsheim (LF) developed an improved injection system that still used a pressure jacket but allowed the syringe to be loaded from the front, which technicians found more convenient. LF applied for a patent on its improved system. In its claims, it specified that the syringe was loaded into a front opening of a pressure jacket.
Stroke is a common disease in modern society, which is the occluded and/or hemorrhaging of the blood vessels in the brain, producing blood clots leading to brain dysfunctions. When faced with the risk of stroke, most people tend to measure their blood pressure first; however, aside from hypertension, vessel atherosclerosis and loss of elasticity are also the causes for blood vessel stenosis and/or rupturing. Additionally, in dialysis patients, prolonged needle puncture will also decrease vessel elasticity, which leads to increased stenosis of hemodialysis access and ineffective hemodialysis. In this study, we proposed a method to integrate and analyze signals measured from SpO2 and ECG sensors to detect blood vessel elasticity and stenosis. Our proposed system has advantages in size and cost, is portable and allows patients to record real-time and long-term blood vessel health status. Our method is a non-invasive measurement of the physiological signals, which can rapidly analyze the stenosis of hemodialysis access, and to take long-term records. The data collected can be analyzed by physicians for precision medicine and preventative health.
This paper presents a new approach to the design and manufacture of coronary artery stents, which permits the use of planar batch fabrication technologies. Stent samples with different wall patterns have been fabricated from 50-/spl mu/m thick stainless steel foil using micro-electro-discharge machining, and expanded to tubular shapes by using angioplasty balloons. The stents exhibit diameter variations of </spl plusmn/4 %, almost zero radial recoil after deflation of the balloon, and longitudinal shrinkage of <3 % upon expansion. Loading tests reveal that the radial strengths match commercially available stents which have twice the wall thickness, while longitudinal compliance, at 0.02 m/N for a 4-mm long section of the stent, is >10/spl times/ higher.
A study was made of a laser angioplasty system using a CO laser, 5 mu m in wavelength. To achieve therapeutic irradiation in a water solution, the authors developed a contact CO laser irradiation method which uses an optical fiber to carry the laser beam to the lesion. The authors have also developed a thin coronary angioscope catheter for diagnosis and targeting of this therapy.<<ETX>>
Endovascular brachytherapy has proven to be an effective tool in the reduction of restenosis following balloon angioplasty for coronary heart disease, while the range of optimal doses and precise target tissue are still unknown. However, over-dosing has been associated with increased thrombogenicity and permanent damage to vessel walls. Under-dosing has been found to stimulate neointima formation, causing restenosis. It has been suggested that restenosis near the edges (edge effect) of the intervention may be caused by the dose falloff towards near the source ends. Monte Carlo code EGS4 was used to calculate the dose distribution around the ends of a Guidant /sup 32/P source. At the ends of the source the 100% isodose curve was found to bend back toward the source starting at about 3 mm from the end of the active source (prescription to 2 mm radius). The 80% isodose line crossed the prescription line 1 mm from the source ends. Further calculations predicted improvement can be achieved by changing the specific activity within 1 mm of the ends of the source. A four-fold increase in specific activity in 0.5 mm segments at the ends of the source, followed by a 0.5 mm gap between the ends and the middle part of the source, kept the 100% isodose line at the prescription distance to within 0.5 mm of the active length of the source without any over-dosing. With five times the activity in the terminal segments, a "full length source" is achieved, involving a small over-dosing.
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