Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Development of Portable Gamma Probe and Its Basic Performance Test

이동형 감마프로브 개발과 기본성능 평가

  • Kim, H.J. (Dept. of Radiology, College of Medicine, Yonsei University) ;
  • Kwark, C. (Dept. of Nuclear Medicine, College of Medicine, Seoul National University) ;
  • Choi, Y. (Dept. of Nuclear Medicine, Samsung Medical Center) ;
  • Yang, M.K. (Dept. of Nuclear Medicine, College of Medicine, Seoul National University) ;
  • Bong, J.K. (Dept. of Radiology, College of Medicine, Yonsei University) ;
  • Lee, S.C. (Dept. of Anesthesiology Colleage of Medicine, Seoul National University)
  • 김희중 (연세대학교 의과대학 진단방사선과학교실) ;
  • 곽철은 (서울대학교 의과대학 핵의학교실) ;
  • 최용 (삼성의료원 핵의학과) ;
  • 양묘근 (서울대학교 의과대학 핵의학교실) ;
  • 봉정균 (연세대학교 의과대학 진단방사선과학교실) ;
  • 이상철 (서울대학교 의과대학 마취과학교실)
  • Published : 1997.05.23
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Abstract

We are developing a portable multipurpose gamma counting and imaging probe that will be useful for many applications in nuclear medicine including radioimmunoguided surgery in the detection and treatment of malignant tumors. Any diagnostic information provided by CT, MRI, PET, SPECT or gamma camera imaging prior to surgery obviously is very important, but current techniques are limited in many instances. To overcome some of these limitations, the portable multipurpose gamma probe is being developed. The gamma probe consists of NaI(Tl) crystal with 1" dia $\times$ 0.5" thick and singlechannel photomultiplier tube (SC-PMT) for counting, and 3" dia $\times$ 0.375" and multichannel photomultiplier tube (MC-PMT) for imaging, nuclear instrument module (NIM), position circuits, interface, and PC. The energy resolution using Tc-99m was measured as 14% and the spatial resolution using 3mm dia green LED was measured as 2.9mm. These priliminary results indicate that the currently developing probe is very promising and could be very useful for many applications in nuclear medicine.

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