Title :
A multi-pair electrode based impedance sensing biopsy needle for tissue discrimination during biopsy process
Author :
Jaeho Park ; Sanghyeok Kim ; Inkyu Park
Author_Institution :
Dept. of Mech. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
We demonstrate the biopsy needle integrated with multi-pair electrode based impedance sensing device for biological tissue discrimination. The impedance sensing biopsy needle has several pairs of electrodes which enable the selective tissue analysis during biopsy process. In order to verify the usefulness of the device, we demonstrate the conductance measurement of various saline solutions and the real-time conductance monitoring of soft elastomeric materials during the needle insertion. Finally, the tissue discrimination of porcine meat tissues during the needle insertion was successfully carried out.
Keywords :
bioelectric potentials; biological tissues; biomedical electrodes; elastomers; electric admittance measurement; electric impedance; needles; patient diagnosis; real-time systems; biological tissue discrimination; impedance sensing biopsy needle; multipair electrode; needle insertion; porcine meat tissues; real-time conductance monitoring; saline solution conductance measurement; selective tissue analysis; soft elastomeric materials; Biopsy; Electrodes; Impedance; Impedance measurement; Needles; Real-time systems; Sensors;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/EMBC.2014.6943933
