Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The improvement of exactitude of stereotactic surgery based on personal computer

개인용 컴퓨터를 이용한 뇌정위 수술의 정확도의 개선

  • Kim, J.S. ( Dept of Medical Information, College of Medicine, Hanyang University) ;
  • Park, H.S. ( Dept of Medical Information, College of Medicine, Hanyang University) ;
  • Choi, K.H. ( Dept of Medical Information, College of Medicine, Hanyang University) ;
  • Chae, E.B. ( Dept of Medical Information, College of Medicine, Hanyang University) ;
  • Lee, Y.H. ( Dept of Medical Information, College of Medicine, Hanyang University) ;
  • Kim, S.I. ( Dept of Medical Information, College of Medicine, Hanyang University)
  • 김준식 (한양대학교 의과대학 계량의학교실) ;
  • 박현석 (한양대학교 의과대학 계량의학교실) ;
  • 최교환 (한양대학교 의과대학 계량의학교실) ;
  • 채의병 (한양대학교 의과대학 계량의학교실) ;
  • 이용희 (한양대학교 의과대학 계량의학교실) ;
  • 김선일 (한양대학교 의과대학 계량의학교실)
  • Published : 1996.05.17
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Abstract

Accuracy and reproducibility of coordinates, angles/areas and volume measurements are the mai goal of imaging-guided stereotactic systems. Errors in measurements are due to pitfalls in a present systems. Factors responsible for inaccuracy and variability on measurements are inappropriate display window settings, unequal spatial resolution, display/film distortion, inappropriate slice width, lack of isocentricity between gantry and frame, and nonparallelism between frame and scanning plan. The most important factor responsible for errors when using stereotactic frames is the nonparallel relationship to the plane of scanning. For the solution of above problem, author developed a computer program for the measurement of the coordinates of intracerebral target, which is operated using the personal computer. This program can calculate the actual spatial coordinates regardless of the inappropriate parallelism between frame and scanning plane and decrease the range of errors of measurements.

Keywords