Title :
Tendon moment arm measurement using 3D MRI images
Author :
Zhu, Qian ; Duerk, Jeffrey L. ; Mansour, Joseph M. ; Crago, Patrick E. ; Wilson, David L.
Author_Institution :
Dept. of Mech. Eng., Case Western Reserve Univ., Cleveland, OH, USA
fDate :
30 Oct-2 Nov 1997
Abstract :
Using new three-dimensional (3D) methods, high resolution MRI images are used to measure tendon moment arm in the third MCP joint. Static images are acquired at multiple rotations of the joint. The 3D methods are: (1) a tendon excursion method that extends the method or Landsmeer and (2) a geometric method based upon the moment arm definition. Both methods should be more accurate than methods based upon 2D images. Repeating the imaging and analysis on a subject shows that the tendon excursion method is more repeatable than the geometric method
Keywords :
biomechanics; biomedical MRI; biomedical measurement; image segmentation; medical image processing; neuromuscular stimulation; physiological models; rendering (computer graphics); splines (mathematics); 3D MRI images; 3D rendering; 3D spline; biomechanical models; computer phantom; functional electrical stimulation; geometric method; high resolution; moment arm definition; multiple rotations; segmented bones; static images; tendon excursion method; tendon moment arm measurement; third MCP joint; Arm; Biomedical measurements; Bones; Chromium; Fingers; Joints; Magnetic resonance imaging; Tendons; Wrist; X-ray imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.757649
