Characterization of radiofrequency ablated myocardium with optical coherence tomography |
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| Institution: | 1. Sahiwal Teaching Hospital, Sahiwal, Pakistan;2. Department of Physics, Islamia College Peshawar, Khyber Pakhtunkhwa, Pakistan;3. Department of Physics, The Women University Multan, Pakistan;4. Institute of Radiotherapy and Nuclear Medicine (IRNUM), Peshawar, Pakistan;2. The Department of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou 730030, China;1. Department of Radiology, University of Health Sciences, Haseki Research and Training Hospital, Istanbul, Turkey;2. Department of Ophtalmology, University of Health Sciences, Haseki Research and Training Hospital, Istanbul, Turkey;1. Community Division, Department of Preventive Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia;2. Department of General Dental Practice, Faculty of Dentistry, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait;3. Department of Oral Medicine and Radiology, Sharavathi Dental College and Hospital, Shivamogga, Karnataka 577204, India;4. Department of Oral Medicine and Radiology, Faculty of Dentistry, Levy Mwanawasa Medical University (LMMU), Ministry of Health, Lusaka, 10101, Zambia;5. Department of Preventive Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia;1. São Paulo State University (UNESP), School of Dentistry - Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, São Paulo, Brazil;2. São Paulo State University (UNESP), School of Dentistry – Department of Dental Materials and Prosthodontics, Araraquara, São Paulo, Brazil;3. São Paulo State University (UNESP), School of Pharmaceutical Sciences - Department of Clinical Analysis, Araraquara, São Paulo, Brazil;4. Universidade de Ribeirão Preto, UNAERP - Department of Dentistry, Ribeirão Preto, SP, Brazil;1. Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;2. Department of Microbiology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;3. Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;1. Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran, Iran;2. Applied Physics Group, Faculty of Physics and Energy Engineering, Amirkabir University of Technology, Tehran, Iran;3. Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran, Iran;4. Medical Genetics Research Center, Mashhad University of Medical Sciences, Azadi square, Mashhad, Iran |
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| Abstract: | Certain types of cardiac arrhythmias are best treated with radiofrequency (RF) ablation, in which an electrode is inserted into the targeted area of the myocardium and then RF electrical current is applied to heat and destroy surrounding tissue. The resulting ablation lesion usually consists of a coagulative necrotic core surrounded by a rim region of mixed viable and non-viable cells. The characterization of the RF ablated lesion is of potential clinical importance. Here we aim to elaborate optical coherence tomography (OCT) imaging for the characterization of RF-ablated myocardial tissue. In particular, the underlying principles of OCT and its polarization-sensitive counterpart (PS-OCT) are presented, followed by the knowledge needed to interpret their optical images. Studies focused on real-time monitoring of RF lesion formation in the myocardium using OCT systems are summarized. The design and development of various hybrid probes incorporating both OCT guidance and RF ablation catheters are also discussed. Finally, the challenges related to the transmission of OCT imaging systems to cardiac clinics for real-time monitoring of RF lesions are outlined. |
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