Stereoscopic vision display technology in real-time three-dimensional echocardiography-guided intracardiac beating-heart surgery Nikolay V. Vasilyev,

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Presentation transcript:

Stereoscopic vision display technology in real-time three-dimensional echocardiography-guided intracardiac beating-heart surgery Nikolay V. Vasilyev, MD, Paul M. Novotny, PhD, Joseph F. Martinez, DVM, Hugo Loyola, MS, Ivan S. Salgo, MD, MS, Robert D. Howe, PhD, Pedro J. del Nido, MD The Journal of Thoracic and Cardiovascular Surgery Volume 135, Issue 6, Pages 1334-1341 (June 2008) DOI: 10.1016/j.jtcvs.2007.12.045 Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 The volumetric data set of the created ASD (arrowheads) is sampled using parallel projection. Rays are cast simultaneously in a front-to-back fashion through the 3DUS data. Left eye and right eye views are separately generated by rendering the 3DUS volume from 2 viewpoints skewed by angle α. LA, Left atrium; RA, right atrium. The Journal of Thoracic and Cardiovascular Surgery 2008 135, 1334-1341DOI: (10.1016/j.jtcvs.2007.12.045) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Sequence of RT3DE images illustrating ASD patch closure. A, Self-expanding Nitinol frame (blue arrowheads) with the polyester patch is deployed and covers the ASD. B-D, The surgical task is demonstrated. The anchor deployment device (red dashed line) is advanced toward the target spot on the patch, and the Nitinol anchor is deployed attaching the patch to the septum. E, Final view of the deployed anchor (red arrow). The Journal of Thoracic and Cardiovascular Surgery 2008 135, 1334-1341DOI: (10.1016/j.jtcvs.2007.12.045) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 Task completion times (A), mean anchor deployment device tip trajectory deviations (B), and anchor placement accuracy (C). ∗P < .001, ∗∗P < .01. Error bars indicate standard error. The Journal of Thoracic and Cardiovascular Surgery 2008 135, 1334-1341DOI: (10.1016/j.jtcvs.2007.12.045) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 Typical paths for task completion using SV display (A) and standard display (B). The solid red line is the graphic representation of the anchor deployment device tip path from the starting point (black arrow) to the target spot (white arrow). The dashed blue line is an optimal trajectory. The Journal of Thoracic and Cardiovascular Surgery 2008 135, 1334-1341DOI: (10.1016/j.jtcvs.2007.12.045) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 5 Sample postmortem photographs of the deployed patch and the anchors. SV display (A) and standard display (B). The Journal of Thoracic and Cardiovascular Surgery 2008 135, 1334-1341DOI: (10.1016/j.jtcvs.2007.12.045) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions