The purpose of this study was to use 64-MDCT to investigate the anatomic characteristics of the S-shaped variant of the sinoatrial node (SAN) artery and to describe the clinical implications of the findings in ablative procedures involving the left atrium.
Department of Radiological Sciences, University of California, Irvine, UCI Medical Center, 101 The City Dr., Route 140, Orange, CA 92868-3298, USA. fsaremi@uci.edu