Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Analysis of Photoplethysmographic Waveform for Assessment of Pulpal Blood Flow in Children

소아 환자의 치수 혈류 평가를 위한 광용적맥파 파형 분석

  • Kim, Hyo-Eun (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Shin, Teo Jeon (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kong, Hyoun-Joong (Department of Biomedical Engineering, Chungnam National University College of Medicine and Chungnam National University Hospital) ;
  • Kim, Pil-Jong (Biomedical Knowledge Engineering Laboratory, School of Dentistry, Seoul National University) ;
  • Hyun, Hong-Keun (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Young-Jae (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Jung-Wook (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Jang, Ki-Taeg (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Chong-Chul (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Lee, Sang-Hoon (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
  • 김효은 (서울대학교 치의학대학원 소아치과학교실) ;
  • 신터전 (서울대학교 치의학대학원 소아치과학교실) ;
  • 공현중 (충남대학교 의과대학 의학과 의공학교실) ;
  • 김필종 (서울대학교 치의학대학원 의생명지식공학연구실) ;
  • 현홍근 (서울대학교 치의학대학원 소아치과학교실) ;
  • 김영재 (서울대학교 치의학대학원 소아치과학교실) ;
  • 김정욱 (서울대학교 치의학대학원 소아치과학교실) ;
  • 장기택 (서울대학교 치의학대학원 소아치과학교실) ;
  • 김종철 (서울대학교 치의학대학원 소아치과학교실) ;
  • 이상훈 (서울대학교 치의학대학원 소아치과학교실)
  • Received : 2015.08.20
  • Accepted : 2015.11.05
  • Published : 2016.05.31
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Abstract

The purpose of this study was to analyze photoplethysmographic waveforms from pulse oximeter using raw data of red and infrared light and investigate the reference values of parameters (Height, Width50, Maximum slope, Minimum slope, Area) for evaluating pulpal blood flow in maxillary central incisors with normal pulp vitality in children. The study was performed in 30 pediatric patients, aged 7-16 years old, using pulse oximeter (MEKICS Co., Ltd, Korea) combined with a custom-made sensor. The raw data was obtained and recorded by custom-made software and analyzed by LabChart (v.7.3, ADInstruments, Germany) offline. In this study, we analyzed photoplethysmographic waveforms from pulse oximeter applied to maxillary central incisor for assessment of pulpal blood flow and suggested several reference values of young permanent maxillary central incisor with normal pulp. On average, the waveform of red light was higher, stiffer and wider than that of infrared light. Future studies about reference values for other normal teeth and the teeth with impaired pulp vitality are needed.

본 연구는 맥박산소측정기를 이용하여 광용적맥파 파형의 원데이터를 기록하고 분석함으로써 치수 생활력 측정에 이 원데이터 분석의 적용가능성을 살펴보고 정상 치수 생활력을 갖는 소아환자의 상악 중절치에 대한 광용적맥파 파형의 파라미터에 대한 기초 자료를 마련할 목적으로 시행되었다. 상악 중절치에 대해 정상 치수 생활력을 갖고 전신질환이 없는 30명의 환아(남 16명, 여 14명, 평균연령 11.4세)를 연구대상으로 선정하였다. 맞춤형 센서와 맥박산소측정기를 이용하여 측정하였으며 측정결과는 적색 파장과 적외선 파장의 원데이터 형태로 기록되었고 LabChart(v.7.3, ADInstruments, Germany)를 이용하여 분석하였다. 본 연구를 통해 소아에서 정상 치수생활력을 갖는 상악 중절치에 대한 광용적맥파 파형의 파라미터의 기준값을 제시할 수 있었으며 소아의 치수혈류측정에 이러한 광용적맥파 파형 분석이 활용될 수 있음을 확인하였다.

Keywords

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