Abstract
The primary functional building block of all radio frequency (RF) energy sources developed for tissue ablation is an electronic circuit called an oscillator which generates a sinusoidal waveform (sine wave) at a particular factory-preset operating frequency. This waveform is consequently amplified to deliver the required wattage required for tissue ablation. The operating frequency of this RF oscillator differs from one RF generator manufacturer to another; however, they all fall within the range from 470 to 510 kHz. A diagram of radio-frequency energy used in RF ablation in relation to the electromagnetic spectrum is shown in Figure 1.
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References
Schoenmakers CCW, CE marking for medical devices — A handbook to the medical device directives: Medical Device Directive 93/42/EEC; The Active Implantable Medical Device Directive 90/396/EEC, Piscataway: IEEE Press, 1997.
Cosman ER, Rittman WJ, “Physical aspects of radiofrequency energy applications”. In: Huang SKS, ed. Radiofrequency Catheter Ablation of Cardiac Arrhythmias — Basic Concepts and Clinical Applications, Armonk: Futura, 1994:13–23
Eick OJ, Wittkampf FH, Bronnenberg T, Schumacher B, “The LETR-Principle: A novel method to assess electrode-tissue contact in radiofrequency ablation”, J Cardiovascular Electrophysiology 1998; 9(11): 180–1185.
Hindricks G, Haverkamp W, “Determinants of radiofrequency- induced lesion size — What are the important parameters to monitor during energy application?”. In: Huang SKS, ed. Radiofrequency Catheter Ablation of Cardiac Arrhythmias — Basic Concepts and Clinical Applications, Armonk: Futura, 1994:97–121.
Neuman MR, “Therapeutic and prosthetic devices”. In: Webster JG, ed. Medical Instrumentation — Applications and Design, Boston: Houghton Mifflin Company, 1978:655–656.
Yamauchi Y, Aonuma K, Oh J, Hachiya H, Kobaysahi I, Kano H, Korenaga M, “Difficulty in typical atrial flutter ablation depends on tricuspid valve-inferior vena cava isthmus anatomy”, Circulation 1999; 100(18):I-652.
He DS, Sharma P, Wang XZ, Bosnos M, Marcus F, “Bio-battery signal predicts myocardial lesion formation and depth in vivo”, J Interventional Cardiac Electrophysiology 1999; 3:69–77.
Cox J, Boineau J, Schuessler R, Ferguson B, Cain M, Lindsay B, Corr P, Kater K, Lappas D, “Successful surgical treatment of atrial fibrillation”, JAMA 1991; 226(14): 1976–1980.
Murgatroyd FD, Haines DE, Swartz JF, “Catheter ablation as a curative approach to the substrate of atrial fibrillation”. In: Murgatroyd FD and Camm AJ, ed. Nonpharmacological Management of Atrial Fibrillation, Armonk: Futura, 1997:239–255.
Asirvatham S, “Can microcatheters produce linear lesions without sacrificing transmurality in the canine atrium?”, Circulation 1999; 100(18):I-374.
Chan EKY, Vepa KP, Hacker VF, “Coagulum index predicts coagulum formation in right atrial linear maze RF ablation”, Europace 2000; 1:D-50.
Radionics RFG-3E Lesion Generator Operating Instructions, 920–60–001 Rev. E, Burlington: Radionics, Inc., 1998.
IBI-1500T Cardiac Ablation Generator with Temperature Control — Operator’s Manual, 75554 Rev. B, Irvine: Irvine Biomedical, Inc., 1999.
Sulzer Osypka HAT 300 Smart Radiofrequency Ablation System Version 2.0 — Instructions for Use, Grenzach-Wyhlen: Sulzer Osypka GmbH, 1997.
Medtronic CardioRhythm Atakr Ablation System Technical Manual 01970, San Jose: Medtronic, Inc., 1995.
Chan EKY, Abati AL, Vepa K, “Coagulum index predicts coagulum formation in right atrial linear maze Rfablation”, PACE 2000;23(II):1856–1858.
Hayt WH, Kemmerly JE, Engineering Circuit Analysis, Third Edition, New York: McGraw-Hill, 1978:296.
The NIST Reference on Constants, Units, and Uncertainty, http://physics.nist.gov/cuu/Units/units.html
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Chan, E.K.Y. (2001). New Concepts in Radiofrequency Energy Delivery and Coagulum Reduction During Catheter Ablation. In: Liem, L.B., Downar, E. (eds) Progress in Catheter Ablation. Developments in Cardiovascular Medicine, vol 241. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9791-3_18
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DOI: https://doi.org/10.1007/978-94-015-9791-3_18
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