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

Volume

2

fYear

1997

fDate

30 Oct-2 Nov 1997

Firstpage

480

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-4262-3

Type

conf

DOI

10.1109/IEMBS.1997.757649

Filename

757649