Model-based segmentation of flexor tendons from magnetic resonance images of finger joints

H. C. Chen, C. K. Chen, T. H. Yang, L. C. Kuo, I. M. Jou, F. C. Su, Y. N. Sun

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

Trigger finger is a common hand disease, causing swelling, painful popping and clicking in moving the affected finger joint. To better evaluate patients with trigger finger, segmentation of flexor tendons from magnetic resonance (MR) images of finger joints, which can offer detailed structural information of tendons to clinicians, is essential. This paper presents a novel model-based method with three stages for automatically segmenting the flexor tendons. In the first stage, a set of tendon contour models (TCMs) is initialized from the most proximal cross-sectional image via two-step ellipse estimation. Each of the TCMs is then propagated to its distally adjacent image by affine registration. The propagation is sequentially performed along the proximal-distal direction until the most distal image is reached, as the second stage of segmentation. The TCMs on each cross-sectional image are refined in the last stage with the snake deformation. MR volumes of three subjects were used to validate the segmentation accuracy. Compared with the manual results, our method showed good accuracy with small average margins of errors (within 0.5 mm) and large overlapping ratio (dice similarity coefficient above 0.8). Overall, the proposed method has great potential for morphological change assessment of flexor tendons and pulley-tendon system modeling for image guided surgery.

原文English
主出版物標題33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
頁面8009-8012
頁數4
DOIs
出版狀態Published - 2011 十二月 26
事件33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA, United States
持續時間: 2011 八月 302011 九月 3

出版系列

名字Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN(列印)1557-170X

Other

Other33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
國家United States
城市Boston, MA
期間11-08-3011-09-03

    指紋

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

引用此

Chen, H. C., Chen, C. K., Yang, T. H., Kuo, L. C., Jou, I. M., Su, F. C., & Sun, Y. N. (2011). Model-based segmentation of flexor tendons from magnetic resonance images of finger joints. 於 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 (頁 8009-8012). [6091975] (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS). https://doi.org/10.1109/IEMBS.2011.6091975