Title
A navigation platform for guidance of beating heart transapical mitral valve repair.
Abstract
Traditional surgical approaches for repairing diseased mitral valves (MVs) have relied on placing the patient on cardiopulmonary bypass (on pump), stopping the heart and accessing the arrested heart directly. However, because this approach has the potential for adverse neurological, vascular, and immunological sequelae, less invasive beating heart alternatives are desirable. Emerging beating heart techniques have been developed to offer high-risk patients MV repair using ultrasound guidance alone without stopping the heart. This paper describes the first porcine trials of the NeoChord DS1000 (Minnetonka, MN), employed to attach neochordae to a MV leaflet using the traditional ultrasound-guided protocol augmented by dynamic virtual geometric models. The distance errors of the tracked tool tip from the intended midline trajectory (5.2 ± 2.4 mm versus 16.8 ± 10.9 mm, p = 0.003), navigation times (16.7 ± 8.0 s versus 92.0 ± 84.5 s, p = 0.004), and total path lengths (225.2 ± 120.3 mm versus 1128.9 ± 931.1 mm, p = 0.003) were significantly shorter in the augmented ultrasound compared to navigation with ultrasound alone, indicating a substantial improvement in the safety and simplicity of the procedure.
Year
DOI
Venue
2013
10.1109/TBME.2012.2222405
IEEE Trans. Biomed. Engineering
Keywords
DocType
Volume
Image-guided surgery, mitral valve (MV) repair, model-enhanced visualization, off-pump beating heart surgery
Journal
60
Issue
ISSN
Citations 
4
1558-2531
9
PageRank 
References 
Authors
0.81
2
10
Name
Order
Citations
PageRank
John T. Moore1121.29
Michael W. A. Chu2141.73
Bob Kiaii3274.29
Daniel Bainbridge411916.28
Gerard Guiraudon521617.39
Chris Wedlake611413.54
Maria Currie790.81
Martin Rajchl842134.67
Rajni V. Patel946057.89
Terry M. Peters101335181.71