Title :
A feasibility study for electrical impedance tomography as a means to monitor tissue electroporation for molecular medicine
Author :
Davalos, Rafael V. ; Rubinsky, Boris ; Otten, David M.
Author_Institution :
Dept. of Mech. Eng., California Univ., Berkeley, CA, USA
fDate :
4/1/2002 12:00:00 AM
Abstract :
Molecular medicine involves the introduction of macromolecules, such as drugs or gene constructs, into specific cells of the body. Electroporation, which uses electric pulses to permeate cell membranes, is a method for achieving this. However, as with other molecular medicine procedures, it lacks a real-time mechanism to detect and control which cells have been affected. We propose and demonstrate, via computer simulation, that electrical impedance tomography has the potential for detecting and imaging electroporation of cells in tissue in real-time, thereby providing feedback for controlling electroporation.
Keywords :
biological tissues; biomembrane transport; electric impedance imaging; electrokinetic effects; liver; Cole-Cole model; cell membranes; computer simulation; drugs; electrical impedance tomography; gene constructs; liver; macromolecules; medical imaging; molecular medicine; real-time imaging; tissue conductivity; tissue electroporation; two-dimensional isotropic cross section; voltage gradients; Biomedical imaging; Biomembranes; Cells (biology); Drugs; Extracellular; Humans; Impedance; Monitoring; Tomography; Voltage; Computer Simulation; Electric Impedance; Electroporation; Feasibility Studies; Macromolecular Substances; Molecular Biology; Tomography;
Journal_Title :
Biomedical Engineering, IEEE Transactions on