Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of the Performance Characteristic for Mammography by Using Edge device

유방영상에서 엣지를 이용한 물리적 영상 평가

  • Kim, Ki-Won (Department of Radiology, Kyung Hee University Hospital at Gang-dong) ;
  • Choi, Kwan-Woo (Department of Radiology, Asan Medical Center) ;
  • Jeong, Hoi-Woun (Department of Radiological Technology, The Baekseok Culture University) ;
  • Jang, Seo-Goo (Department of Medical Science, The Soonchunhyang University) ;
  • Lee, Eul-Kyu (Department of Radiology, Inje Paik University Hospital Jeo-dong) ;
  • Son, Soon-Yong (Department of Radiological Technology, The Wonkwang Health Science University) ;
  • Son, Jin-Hyun (Department of Radiological Technology, The Shingu University) ;
  • Min, Jung-Whan (Department of Radiological Technology, The Shingu University)
  • 김기원 (강동경희대병원 영상의학과) ;
  • 최관우 (서울아산병원 영상의학과) ;
  • 정회원 (백석문화대학교 방사선과) ;
  • 장서구 (순천향대학교 의과학과) ;
  • 이을규 (인제대학교서울백병원 영상의학과) ;
  • 손순룡 (원광보건대학교 방사선과) ;
  • 손진현 (신구대학교 방사선과) ;
  • 민정환 (신구대학교 방사선과)
  • Received : 2016.07.28
  • Accepted : 2016.09.20
  • Published : 2016.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study was to evaluation of the performance characteristic for mammography by using edge device that mammography equipment improves essential in the correct diagnosis for the maintenance. We measured the modulation transfer function (MTF), the noise power spectrum (NPS), and the detective quantum efficiency (DQE) using the 61267 RQA-M2 based on commission standard international electro-technical commission (IEC). As a results, spatial resolution of elenia demensions tomo and lorad selenia mammography were maintained at $10mm^{-1}$ and NPS and DQE including the low nyquist frequency indicated to $6.0mm^{-1}$. Therefore, regulary QA of mammography system should be necessary. This study can be contribute to evaluate QA for performance characteristic of mammography of DDR system.

본 연구에서는 맘모그래피 장비에 대한 유지 보수에 대한 진단을 하는데 있어서 필수적인 정확성을 높이기 위해서 edge방법을 이용한, 유방영상의 물리적 특성에 대해서 알아보고자 한다. International electronical commission standard IEC: 61267의 RQA-M2 방법에 의해서 변조전달함수(modulation transfer function: MTF), 잡음전력스펙트럼(noise power spectrum: NPS), 양자검출효율(detective quantum efficiency: DQE)등을 측정하였다. 결과는 selenia demensions의 tomo장비와 lorad selenia는 맘모 전형장비의 MTF는 $10mm^{-1}$에서의 공간분해능을 유지하고 있었으며, NPS와 DQE는 낮은 nyquist frequency 포함하여 $6.0mm^{-1}$까지 나왔다. 따라서 정확한 진단을 위하여 주기적인 맘모시스템의 유지보수가 필요하며, 본 연구는 DDR 맘모시스템의 QA 및 수행성능 평가에 기초가 될 것으로 생각된다.

Keywords

References

  1. Carton A K, Vandenbroucke D, Struye L, Maidment A D, Kao Y H, Albert M, Bosmans H and Marchal G: Validation of MTF measurement for digital mammography quality control. Medical Physics, 32, 1684-1695, 2005 https://doi.org/10.1118/1.1921667
  2. Jung-Min Kim, Jung-Whan Min, Hoi-Woun Jeong et al: Correction Method of slit Modulation Transfer function on Digital Medical Imaging System. Journal of Radiological Science and Technology, 29(3), 133-139, 2006
  3. Hoi-Woun Jeong, Jung-Whan Min, Jung-Min Kim et al: Performance characteristic of a Cs I (TI) Flat panel detector radiography system. Journal of Radiological Science and Technology, 35(2), 109-117, 2012
  4. Soon-Yong Son, Hoi-Woun Jeong, Jung Whan Min et al: Measurement of Image Quality According to the Time of Computed Radiography System. Journal of Radiological Science and Technology, 38(4), 365-374, 2015 https://doi.org/10.17946/JRST.2015.38.4.05
  5. Ki-Won Kim, Hoi-Woun Jeong, Jung Whan Min et al: Evaluation of the Modulation Transfer Function for Computed Tomography by Using American Association Physics Medicine Phantom. Journal of Radiological Science and Technology, 39(2), 193-198, 2016 https://doi.org/10.17946/JRST.2016.39.2.09
  6. Sawant A, Antonuk L E, El-Mohri Y: Slit Design for Efficient and Accurate MTF Measurement at Megavoltage X-ray Energies. Medical Physics, 34, 1535-1545, 2007 https://doi.org/10.1118/1.2717405
  7. Dobbins III J T, Samei E, Ranger N T and Chen Y: Intercomparison of methods for image quality characterization. II. Noise power spectrum. Medical Physics, 33, 1466-1475, 2006 https://doi.org/10.1118/1.2188816
  8. Dobbins J T, Ergun D L, Rutz L, Hinshaw D A, Blume H and Clark D C: DQE(f) of four generations of computed radiography acquisition devices. Medical Physics, 22, 1581-1593, 1995 https://doi.org/10.1118/1.597627
  9. IEC (International Electrotechnical Commission) 2003 Medical electrical equipment - Characteristics of digital x-ray imaging devices: IEC 61267 (Geneva: IEC)
  10. Fujita H, Tsai DY, Itoh T, Doi K, Morishita J, Ueda K, et al: A Simple Method for Determining the Modulation Transfer Function in Digital Radiography. IEEE Trans Medical Imaging, 11, 34, 1992 https://doi.org/10.1109/42.126908