Fusion of Delayed-enhancement MR Imaging and Contrast-enhanced MR Angiography to Visualize Radiofrequency Ablation Scar on the Pulmonary Vein

Yutaka SHIGENAGA; Kunihiko KIUCHI; Kazushi IKEUCHI; Takayuki IKEDA; Katsunori OKAJIMA; Yoshinori YASAKA; Hiroya KAWAI

doi:10.2463/mrms.2014-0136

Technical Notes

Fusion of Delayed-enhancement MR Imaging and Contrast-enhanced MR Angiography to Visualize Radiofrequency Ablation Scar on the Pulmonary Vein

Yutaka SHIGENAGA , Kunihiko KIUCHI, Kazushi IKEUCHI, Takayuki IKEDA, Katsunori OKAJIMA, Yoshinori YASAKA, Hiroya KAWAI

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Keywords: atrial fibrillation, catheter ablation, delayed enhancement, left atrium, magnetic resonance imaging

JOURNAL OPEN ACCESS

2015 Volume 14 Issue 4 Pages 367-372

DOI https://doi.org/10.2463/mrms.2014-0136

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Abstract

Delayed-enhancement magnetic resonance imaging (DE-MRI) is reported to detect the radiofrequency (RF) ablation scar of pulmonary vein isolation. However, the precise localization of RF scar is difficult to recognize due to the poor anatomical information of the 3-dimensionally reconstructed DE-MRI. We report 2 cases in which fusion of DE-MRI and contrast-enhanced MR angiography facilitated the identification of RF scar, and we detail our fusion method.

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