Korean Journal of Digital Imaging in Medicine (대한디지털의료영상학회논문지)

The Korean Society for Digital Imaging in Medicine (대한디지털의료영상학회)
권호 표지

Using Image J program, compared of focusing distance and grid rate

Image J 프로그램을 이용한 격자집속거리와 격자비에 따른 영상비교평가

  • Seo, Won-Joo (Department of Diagnostic Radiology, Chung-Ang University Hospital) ;
  • Seo, Jeong-Beom (Department of Diagnostic Radiology, Konkuk University Hospital) ;
  • Lee, Jong-Woong (Department of Radiology, Kyung Hee University Hospital at Gang-dong)
  • 서원주 (중앙대학교병원 영상의학과) ;
  • 서정범 (건국대학교병원 영상의학과) ;
  • 이종웅 (강동경희대병원 영상의학과)
  • Received : 2012.03.29
  • Accepted : 2012.05.12
  • Published : 2012.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Pediatric head and neck phantom, using the rate by focusing distance and grid images, Image J using the Quality Assessment and Dose Area Product compared. X-ray laboratory equipment due to the Philips Digital DIAGNOST a 110 cm FFD set and using ACE Non-grid, focusing distance 110 cm (12 : 1), 140 cm (12 : 1), 180 cm (8 : 1) Focused grid, Acryl Phantom (Fluke Model 76-2 Series Phantom) 15.24 cm, by resolution chart image acquisition, image evaluation program (Image J Ver. 1.4.3.67, USA) imaging experiments were analyzed using. Dose Area Product in the Non Grid 0.028 $mGy{\cdot}cm^2$, focusing distance 110 cm (12 : 1), the 0.129 $mGy{\cdot}cm^2$, 140 cm (12 : 1), the 0.135 $mGy{\cdot}cm^2$, 180 cm (8 : 1) was measured with a 0.110 $mGy{\cdot}cm^2$ Non Grid, focusing distance 110 cm (12 : 1), 140 cm (12 : 1), 180 cm (8 : 1) Image obtained when grid using the image J program focusing distance 110 cm with grid based on the measured SNR and PSNR Non Grid if the SNR the 17.307 dB, PSNR of the 20.002 dB, if the SNR 28.755 dB, PSNR was measured by the 31.451 dB. Image J image analysis through the streets, rather than focusing on grid by the rate that could see an increase in dose. Select the grid by a small dose rate reduction is possible.

Keywords