Title :
Monitoring fracture healing by impedance imaging
Author :
Kulkarni, Vivek ; Hutchinson, J.M.S. ; Ritchie, IK ; Chesney, RB ; Gibson, P. ; Mallard, JR
Author_Institution :
Aberdeen Univ., UK
Abstract :
Impedance osteography techniques are used to measure and image the spatial distribution of changes in resistivity in the plane of fracture. The impedance imaging system uses a four-electrode technique in a 16-electrode split array to drive a 1-mA current on a 10-kHz sine wave. The induced boundary potentials are measured, demodulated, digitized, averaged and stored on disk. Both measurement and image reconstruction are microprocessor controlled. It is concluded that the technique could prove a useful adjunct to clinical monitoring of the healing process
Keywords :
bioelectric phenomena; bone; electric impedance; patient monitoring; 1 mA; 10 kHz; 16-electrode split array; 4-electrode technique; clinical monitoring; fracture healing monitoring; image reconstruction; impedance imaging; impedance osteography; induced boundary potentials; microprocessor control; resistivity changes; spatial distribution; Bones; Conductivity; Electric variables; Electrodes; Frequency; Image reconstruction; Impedance; Monitoring; Spatial resolution; Virtual manufacturing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95828
