Proceedings of the Korean Society of Computer Information Conference (한국컴퓨터정보학회:학술대회논문집)

Korean Society of Computer Information (한국컴퓨터정보학회)
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Development of portable digital radiography system with device for sensing X-ray source-detector angle and its application in chest imaging

엑스선촬영 각도를 측정할 수 있는 장치 개발과 흉부 X선 영상촬영에서의 적용

  • Kim, Tae-Hoon (Imaging Science Research Center, Wonkwang University) ;
  • Heo, Dong-Woon (Imaging Science Research Center, Wonkwang University) ;
  • Ryu, Jong-Hyun (Imaging Science Research Center, Wonkwang University) ;
  • Jeong, Chang-Won (Imaging Science Research Center, Wonkwang University) ;
  • Jun, Hong Young (Imaging Science Research Center, Wonkwang University) ;
  • Kim, Kyu Gyeom (Imaging Science Research Center, Wonkwang University) ;
  • Hong, Jee Min (Imaging Science Research Center, Wonkwang University) ;
  • Jang, Mi Yeon (Imaging Science Research Center, Wonkwang University) ;
  • Kim, Dae Won (Dept. of Neurosurgery, Wonkwang University School of Medicine) ;
  • Yoon, Kwon-Ha (Dept. of Radiology, Wonkwang University School of Medicine)
  • 김태훈 (원광대학교, 영상과학 연구 센터) ;
  • 허동운 (원광대학교, 영상과학 연구 센터) ;
  • 류종현 (원광대학교, 영상과학 연구 센터) ;
  • 정창원 (원광대학교, 영상과학 연구 센터) ;
  • 전홍영 (원광대학교, 영상과학 연구 센터) ;
  • 김규겸 (원광대학교, 영상과학 연구 센터) ;
  • 홍지민 (원광대학교, 영상과학 연구 센터) ;
  • 장미연 (원광대학교, 영상과학 연구 센터) ;
  • 김대원 (원광대학교 의과대학, 신경외과) ;
  • 윤권하 (원광대학교 의과대학, 영상의학과)
  • Published : 2017.01.10
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Abstract

This study was to develop a portable digital radiography (PDR) system with a function measuring the X-ray source-with-detector angle (SDA) and to evaluate the imaging performance for the diagnosis of chest imaging. The SDA device consisted of an Arduino, an accelerometer and gyro sensor, and a Bluetooth module. According to different angle degrees, five anatomical landmarks on chest images were assessed using a 5-point scale. Mean signal-to-noise ratio and contrast-to-noise ratio were 182.47 and 141.43. Spatial resolution (10% MTF) and entrance surface dose were 3.17 lp/mm ($157{\mu}m$) and 0.266mGy. The angle values of SDA device were not significant difference as compared to those of the digital angle meter. In chest imaging, SNR and CNR values were not significantly different according to different angle degrees (repeated-measures ANOVA, p>0.05). The visibility scores of the border of heart, 5th rib and scapula showed significant differences according to different angles (rmANOVA, p<0.05), whereas the scores of the clavicle and 1st rib were not significant. It is noticeable that the increase in SDA degree was consistent with the increase of visibility score. Our PDR with SDA device would be useful to be applicable to clinical radiography setting according to the standard radiography guideline at various fields.

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