Impedance Changes of Living Tissue During Radiation Exposure Dose

방사선 피폭선량에 대한 생체 조직의 임피던스 변화

  • Kil, Sang Hyeong (Department of Nuclear Medicine, Pusan National University Yangsan Hospital) ;
  • Lee, Moo Seok (Department of Nuclear Medicine, Pusan National University Hospital) ;
  • Nam, Ji Ho (Department of Radiation Oncology, Pusan National University Yangsan Hospital) ;
  • Lee, Yeong Hwa (Department of Radiation Oncology, Pusan National University Yangsan Hospital) ;
  • Kim, Gun Do (Department of Microbiology, Pukyong National University) ;
  • Lee, Jong Kyu (Department of Physics, Pukyong National University)
  • 길상형 (양산부산대학교병원 핵의학과) ;
  • 이무석 (부산대학교병원 핵의학과) ;
  • 남지호 (양산부산대학교병원 방사선종양학과) ;
  • 이영화 (양산부산대학교병원 방사선종양학과) ;
  • 김군도 (부경대학교 미생물학과) ;
  • 이종규 (부경대학교 물리학과)
  • Received : 2013.09.09
  • Accepted : 2013.10.17
  • Published : 2013.12.30


Bioimpedance involves a lot of information related to living tissue. If there is alteration in bio tissue, its electrical characteristics also change. It is to study electrical characteristics of pork tenderlion in using a HP-4194A Impedance/Gain-phase analyzer instrument and electrical characteristics changes by graded radiation exposure dose. The results were as follow 1. Electrical characteristics of pork tenderlion in repeated measurement had high precision within ${\pm}5$% of coefficiency of variability. 2. During the measurement impedance absolute value and phase alteration did not show statistically significant difference.(p>0.05) 3. While impedance phase of electrical characteristics associated with frequency change was almost stable, impedance absolute value was in inverse proportion to frequency that means high inverse correlation of -0.096(r). 4. Impedance absolute value dropped in radiation exposure dose. The alteration of the value did not show statistically significant difference in 1 Gy, 2 Gy and 4 Gy.(p>0.05) However in radiation exposure dose of 10 Gy, the decrease of impedance absolute value was significantly different.(p<0.05) 5. Impedance phase according to radiation exposure dose change did not show statistically significant difference in 1 Gy, 2 Gy, 4 Gy, and 10 Gy(p>0.05).


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