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Communication Dans Un Congrès Année : 2005

Volume calculation of venous thrombosis using 2D ultrasound images

Résumé

Venous thrombosis screening exams use 2D ultrasound images, from which medical experts obtain a rough idea of the thrombosis aspect and infer an approximate volume. Such estimation is essential to follow up the thrombosis evolution. This paper proposes a method to calculate venous thrombosis volume from non-parallel 2D ultrasound images, taking advantage of a priori knowledge about the thrombosis shape. An interactive ellipse fitting contour segmentation extracts the 2D thrombosis contours. Then, a Delaunay triangulation is applied to the set of 2D segmented contours positioned in 3D, and the area that each contour defines, to obtain a global thrombosis 3D surface reconstruction, with a dense triangulation inside the contours. Volume is calculated from the obtained surface and contours triangulation, using a maximum unit normal component approach. Preliminary results obtained on 3 plastic phantoms and 3 in vitro venous thromboses, as well as one in vivo case are presented and discussed. An error rate of volume estimation inferior to 4,5% for the plastic phantoms, and 3,5% for the in vitro venous thromboses was obtained.

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Dates et versions

hal-02125511 , version 1 (10-05-2019)

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Mounir Dhibi, John Puentes, Luc Bressollette, Bruno Guias, Basel Solaiman. Volume calculation of venous thrombosis using 2D ultrasound images. IEEE/EMBS 2005 : 27th annual international conference of IEEE engineering in medecine and biology society, September, Shanghai, China, Sep 2005, Shangai, Chine. pp.4002 - 4005, ⟨10.1109/IEMBS.2005.1615339⟩. ⟨hal-02125511⟩
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