2017 Volume 55Annual Issue 4AM-Abstract Pages 293
Spiral wave (SW) is recognized as a cause of lethal ventricular arrhythmia. Previously, it was reported that SW moved around the regional cooling (RC) region. However, the mechanism of SW in RC was not elucidated. On the other hand, phase variance analysis was suggested for quantitative and accurate SW's core detection. In this study, we simulated the RC experiment in computer simulation model and analyzed the behavior of SW by phase variance to elucidate the mechanism of SW in RC. As a result, we found that SW's core moved around the RC region in the same direction irrespective of RC position. Wave tail delayed by the RC blocks the propagation of wave front and SW drifts toward the periphery of the RC region.
