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Semi-automatic vessel tracking and segmentation using epicardial ultrasound in bypass surgery.

Authors
  • Jørgensen, Alex Skovsbo
  • Schmidt, Samuel Emil
  • Staalsen, Niels-Henrik
  • Østergaard, Lasse Riis
Type
Published Article
Journal
Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Publication Date
Jan 01, 2012
Volume
2012
Pages
2331–2334
Identifiers
DOI: 10.1109/EMBC.2012.6346430
PMID: 23366391
Source
Medline
License
Unknown

Abstract

The purpose of intraoperative quality assessment of coronary artery bypass graft surgery is to confirm graft patency and disclose technical errors to reduce cardiac mortality, morbidity and improve clinical outcome for the patient. Epicardial ultrasound has been suggested as an alternative approach for quality assessment of anastomoses. To make a quantitative assessment of the anastomotic quality using ultrasound images, the vessel border has to be delineated to estimate the area of the vessel lumen. A tracking and segmentation algorithm was developed consisting of an active contour modeling approach and quality control of the segmentations. Evaluation of the tracking algorithm showed 91.96% of the segmentations were segmented correct with a mean error in height and width at 5.65% and 11.50% respectively.

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