Quantitative characterization of mitral annulus and leaflets from transesophageal 3D echocardiography

Miguel Sotaquira, Laura Fusini, Mauro Pepi, Roberto M. Lang, Enrico Caiani

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We propose and validate a novel algorithm for the segmentation and quantification of the mitral annulus (MA) and mitral leaflets (ML) from transesophageal real-time 3D echocardiography volumes in a closed mitral valve (MV) configuration. Following initialization of 8 MA points and of the coaptation line, the MA and the anterior and posterior ML are automatically obtained in 3D. Once segmented, several morphological parameters, including local ML thickness and tenting, are obtained. Validation versus manual tracings was performed in 33 patients: 9 controls, with normal MA dimensions, 12 patients with dilative cardiomyopathy and 12 after MV repair with insertion of annuloplasty ring on the posterior MA region. MA and ML segmentations showed a high level of accuracy when compared with manual tracings, with errors of the order of the voxel size. Computed parameters were comparable with those found in literature for healthy MV. The potential clinical applicability to different MV pathologies, as well as repaired valves with implanted annular rings, was favorably tested.

Original languageEnglish
Title of host publicationComputing in Cardiology
Number of pages4
Publication statusPublished - 2013
Event2013 40th Computing in Cardiology Conference, CinC 2013 - Zaragoza, Spain
Duration: Sep 22 2013Sep 25 2013


Other2013 40th Computing in Cardiology Conference, CinC 2013

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Computer Science(all)

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