L. He, Z. G. Peng, B. Everding, et al., “A Comparative Study of Deformable Contour Methods on Medical Image Segmentation,” Image and Vision Computing, Vol. 26, No. 2, 2008, pp. 141-163. doi:10.1016/j.imavis.2007.07.010
 F. R. Sun, Z. Liu, Y. L. Li, et al., “Improved T-Snake Model Based Edge Detection of the Coronary Arterial Walls in Intravascular Ultrasound Images,” The 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE2009), Beijing, June 2009, pp. 1-4.
 L. D. Cohen and I. Cohen, “Finite-Element Methods for Active Contour Models and Balloons for 2D and 3D Images,” IEEE Transaction on Pattern Analysis and Machine Intelligence, Vol. 15, No. 11, 1993, pp. 1131-1147. doi:10.1109/34.244675
 X. J. Zhu, P. F. Zhang, J. H. Shao, et al., “A Snake-Based Method for Segmentation of Intravascular Ultrasound Images and Its in Vivo Validation,” Ultrasonics, Vol. 51, No. 2, 2011, pp. 181-189. doi:10.1016/j.ultras.2010.08.001