Transapical sutureless aortic valve implantation under magnetic resonance imaging guidance: Acute and short-term results Keith A. Horvath, MD, Dumitru.

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Presentation transcript:

Transapical sutureless aortic valve implantation under magnetic resonance imaging guidance: Acute and short-term results Keith A. Horvath, MD, Dumitru Mazilu, PhD, Junfeng Cai, MD, PhD, Bogdan Kindzelski, BS, Ming Li, PhD The Journal of Thoracic and Cardiovascular Surgery Volume 149, Issue 4, Pages 1067-1072 (April 2015) DOI: 10.1016/j.jtcvs.2014.10.101 Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Computer-aided design drawing of the delivery device, showing a dual-lumen, coaxial tube structure containing an inner carrier rod (1), which connects to the back handgrip (2), and a coaxial outer sheath (3), which also connects to the back handgrip (4). (5) Modified Check-Flo Introducer Set (French size 14) (Cook, Bloomington, Ind). A loop coil antenna (6) is embedded into the exterior tube of the delivery system to improve visibility of the device during real-time magnetic resonance imaging. An additional wire insulator (7) protects the antenna wire. A radio frequency connector (8) connects the antenna to the matching/decoupling circuit box. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 1067-1072DOI: (10.1016/j.jtcvs.2014.10.101) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 A, The valve is inserted into a homemade crimper. B, The valve is crimped and is transferred to a temporary holder. C, The temporary holder is used to transfer the crimped valve from the crimper to the delivery device. D, The crimped valve is loaded inside a homemade delivery device. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 1067-1072DOI: (10.1016/j.jtcvs.2014.10.101) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 The valve appears as a dark cylindrical cage in the MRI images. MRI, Magnetic resonance imaging. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 1067-1072DOI: (10.1016/j.jtcvs.2014.10.101) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 Radiographic image of the valve. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 1067-1072DOI: (10.1016/j.jtcvs.2014.10.101) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 5 A, Right coronary ostium; (B) left coronary ostium. Both coronary ostia are at the level of the prosthesis sinusoidal struts, and they are not obstructed. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 1067-1072DOI: (10.1016/j.jtcvs.2014.10.101) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions