Mitral Annulus Segmentation From 3D Ultrasound Using Graph Cuts
Name
Schneider-2010-Mitral Annulus Segme.pdf
Size
916.55 KB
Format
Adobe PDF
Checksum (MD5)
54c9480cbb15177c848d3ca17e529725
Author(s)
Schneider, Robert J.
Perrin, Douglas P.
Vasilye, Nikolay V.
Marx, Gerald R.
Nido, Pedro J. del
Howe, Robert D.
Date Issued
August 2010
Journal
IEEE Transactions on Medical Imaging
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Schneider, Robert J. et al. “Mitral Annulus Segmentation From 3D Ultrasound Using Graph Cuts.” IEEE Transactions on Medical Imaging 29.9 (2010): 1676–1687. Web. 30 Mar. 2012. © 2010 Institute of Electrical and Electronics Engineers
Version
Final published version
Abstract
The shape of the mitral valve annulus is used in diagnostic and modeling applications, yet methods to accurately and reproducibly delineate the annulus are limited. This paper presents a mitral annulus segmentation algorithm designed for closed mitral valves which locates the annulus in three-dimensional ultrasound using only a single user-specified point near the center of the valve. The algorithm first constructs a surface at the location of the thin leaflets, and then locates the annulus by finding where the thin leaflet tissue meets the thicker heart wall. The algorithm iterates until convergence metrics are satisfied, resulting in an operator-independent mitral annulus segmentation. The accuracy of the algorithm was assessed from both a diagnostic and surgical standpoint by comparing the algorithm's results to delineations made by a group of experts on clinical ultrasound images of the mitral valve, and to delineations made by an expert with a surgical view of the mitral annulus on excised porcine hearts using an electromagnetically tracked pointer. In the former study, the algorithm was statistically indistinguishable from the best performing expert (p = 0.85 ) and had an average RMS difference of 1.81±0.78 mm to the expert average. In the latter, the average RMS difference between the algorithm's annulus and the electromagnetically tracked points across six hearts was 1.19±0.17 mm.
MIT Department
Harvard University--MIT Division of Health Sciences and Technology
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/tmi.2010.2050595
