Noncontact mapping to guide ablation of right ventricular outflow tract tachycardia
Paul A. Friedman, MD, FACC*,*,
Samuel J. Asirvatham, MD*,
Suellen Grice, RN*,
Michael Glikson, MD ,
Thomas M. Munger, MD, FACC*,
Robert F. Rea, MD, FACC*,
Win K. Shen, MD, FACC*,
Arshad Jahanghir, MD*,
Douglas L. Packer, MD, FACC* and
Stephen C. Hammill, MD, FACC*
* Division of Cardiovascular Disease, Mayo Clinic, Rochester, Minnesota, USA
Sheba Medical Center, Tel Hashomer, Israel

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Figure 1 Fluoroscopic image of the noncontact array in the right ventricular outflow tract.
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Figure 2 Isopotential map of right ventricular outflow tract (RVOT) activation (left) and virtual electrograms at the site of earliest activation (note QS pattern).
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