Electrical Characterization of Pork Tissue Measured by a Monopolar Injection Needle and Discrete Fourier Transform based Impedance Measurement
- Authors
- Aitzaz, Abbasi Muhammad; Kim, Junsub; Kim, Taehee; Park, Ki Deok; Cho, Sungbo
- Issue Date
- Oct-2019
- Publisher
- MDPI
- Keywords
- intra-articular injection therapy; monopolar needle; skin tissue of pork; ultrasonography; electrical impedance monitoring
- Citation
- APPLIED SCIENCES-BASEL, v.9, no.19
- Journal Title
- APPLIED SCIENCES-BASEL
- Volume
- 9
- Number
- 19
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/18099
- DOI
- 10.3390/app9194049
- ISSN
- 2076-3417
- Abstract
- Ultrasonography or fluoroscopy-guided needle injection has been used for intra-articular injection therapy against adhesive capsulitis and joint diseases. To improve the image-guided intra-articular injection therapy, electrical impedance measurement based positioning of the needle tip in the target tissue can be applied. The feasibility of the discrimination for the tissue layer at which the disposable monopolar injection needle tip position was investigated using the discrete Fourier transform (DFT)-based impedance measurement system and the ultrasound imaging device. The electrical impedance spectra of the pork tissue measured in the frequency range of 200 Hz to 50 kHz were characterized by designed equivalent circuit modeling analysis. The normalized impedance data of the tissue layers (dermis, hypodermis, and muscle) were significantly different from each other (p-value < 0.001). The DFT-based impedance measurement system with a monopolar injection needle can be complementary to the image-guided intra-articular injection therapy.
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