Full-motion two- and three-dimensional pulmonary vein imaging by intracardiac echocardiography after pulmonary vein isolation.

Full-motion two- and three-dimensional pulmonary vein imaging by intracardiac echocardiography after pulmonary vein isolation. Research Abstract Details 

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Full-motion two- and three-dimensional pulmonary vein imaging by intracardiac echocardiography after pulmonary vein isolation. Abstract Text:

Yasuo Okumura,Ichiro Watanabe,Kimie Ohkubo,Takeshi Yamada,Kazunori Kawauchi,Yasuhiro Takagi,Sonoko Ashino,Masayoshi Kofune,Tatsuya Kofune,Kenichi Hashimoto,Atsushi Shindo,Hidezou Sugimura,Toshiko Nakai,Satoshi Kunimoto,Satoshi Saito,Atsushi Hirayama,

BACKGROUND: The pulmonary veins (PVs) are topographically complex and motile, so angiographic visualization of the PVs anatomy is limited. An imaging technique that accurately portrays the pulmonary vein (PV) anatomy would be valuable during and after catheter ablation procedures. PURPOSE: We investigated whether three-dimensional (3D) intracardiac echocardiography (ICE) can visualize radiofrequency (RF)-induced tissue changes after PV isolation. METHODS: We performed 3D ICE studies with a 9F, 9-MHz ICE catheter after segmental or extended PV isolation. The ICE catheter was placed 3-4 cm inside the PV ostium and mounted onto a pullback device. Sequential two-dimensional (2D) images of the full length of the vein were obtained in 0.3 mm steps with cardiac and respiratory cycle gating. Each image was fed into a computer, and the aggregate data set was reconstructed into a 3D, full-motion image. RF lesion location and lesion size were studied on 67 pullback images from 29 patients. RESULTS: The 2D and 3D reconstruction was possible for 27 left superior PVs, 13 left inferior PVs, 26 right superior PVs, and one right inferior PV. The ablation site was identified 3-7 mm inside the PV ostium, and a 1/2 - 4/5 circumferential area was ablated with no clinically relevant stenosis. No significant differences were found on the ablated area or ablation site between segmental and extensive PV isolation. CONCLUSION: The 2D and 3D ICE of the PVs provides detailed anatomical information of the proximal PVs, and RF-induced tissue changes in the PV wall can be visualized by ICE.

Full-motion two- and three-dimensional pulmonary vein imaging by intracardiac echocardiography after pulmonary vein isolation. Publishing Authors By Initials

Y Okumura,I Watanabe,K Ohkubo,T Yamada,K Kawauchi,Y Takagi,S Ashino,M Kofune,T Kofune,K Hashimoto,A Shindo,H Sugimura,T Nakai,S Kunimoto,S Saito,A Hirayama,

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Full-motion two- and three-dimensional pulmonary vein imaging by intracardiac echocardiography after pulmonary vein isolation. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Pacing and clinical electrophysiology : PACE

VOLUME: 31

Page Numbers: 409-17

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ISSN: 1540-8159

DAY: 31

MONTH: Apr

YEAR: 2008

Full-motion two- and three-dimensional pulmonary vein imaging by intracardiac echocardiography after pulmonary vein isolation. Information

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LANGUAGE: eng

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Country: United States

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MEDLINETA: Pacing Clin Electrophysiol

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