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KMID : 1011920130140010008
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International Journal of Arrhythmia
2013 Volume.14 No. 1 p.8 ~ p.13
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NavXTM cardiac mapping system
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Choi Jong-Il
Kim Young-Hoon
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Abstract
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Three-dimensional (3D) virtual mapping systems provide accurate visualization and navigation with electroanatomical data for cardiac arrhythmias, thus facilitating safer and more successful treatment than conventional mapping. Reconstructed 3D geometry of cardiac chambers by using mapping can significantly reduce fluoroscopic and procedural times. Furthermore, CT and MRI images can be integrated into the electroanatomic map in real time. The CARTO® (Biosense Webster, Diamond Bar, CA, USA) and Ensite NavXTM (St. Jude Medical, Inc., St. Paul, MN, USA) systems have been most widely used. NavXTM is an impedancebased technology that measures the voltage gradient across tissue when current is applied through surface electrodes. NavXTM has recently evolved into the newest platform, EnSite VelocityTM. In this chapter, we reviewed the basic principle and clinical application of these mapping systems.
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KEYWORD
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cardiac arrhythmia, mapping system, navigation
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Listed journal information
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