Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Evaluation of the Resolution Characteristics by Using American College of Radiology Phantom for Magnetic Resonance Imaging

자기공명영상에서 ACR 팬텀을 이용한 해상력 특성 평가

  • Min, Jung-Whan (Department of Radiological technology, Shingu University) ;
  • Jeong, Hoi-Woun (Department of Radiological Science, Baekseok Culture University) ;
  • Han, Ji-Hyun (Department of Radiology, Yonsei University, Gangnam Severance Hospital) ;
  • Lee, Si-Nae (Department of Radiology, Yonsei University, Gangnam Severance Hospital) ;
  • Kim, Min-Ji (Department of Radiology, Yonsei University, Gangnam Severance Hospital) ;
  • Kim, Seung-Chul (Institute of Health Sciences Reserch, Korea University)
  • 민정환 (신구대학교 방사선과) ;
  • 정회원 (백석문화대학교 방사선과) ;
  • 한지현 (강남세브란스병원 영상의학과) ;
  • 이시내 (강남세브란스병원 영상의학과) ;
  • 김민지 (강남세브란스병원 영상의학과) ;
  • 김승철 (고려대학교 보건과학연구소)
  • Received : 2022.01.23
  • Accepted : 2022.02.11
  • Published : 2022.02.28
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Abstract

This study was purpose to quantitative assessment of the resolution characteristics by using American college of radiology(ACR) phantom for magnetic resonance imaging (MRI). The MRI equipment was used (Achiva 3.0T MRI, Philips system, Netherlands) and the head/neck matrix shim SENSE head coil were 32 channels(elements) receive MR coil. And the MRI equipment was used (Discovery MR 750, 3.0T MRI, GE medical system, America) and the head/neck matrix shim MC 3003G-32R 32-CH head coil were receive MR coil. As for the modulation transfer function(MTF) comparison result by using ACR magnetic resonance imaging phantom, the MTF value of the ACR standard T2 image in GE equipment is 0.199 when the frequency is 1.0 mm-1 and the MTF value of the hospital T2 image in Philips equipment is 0.528. It was used efficiently by using a general sequence more than the standard sequence method using the ACR phantom. In addition it is significant that the quantitative quality assurance evaluation method for resolution characteristics was applied mutatis mutandis, and the result values of the physical image characteristics of the 3.0T MRI device were presented.

Keywords

Acknowledgement

This study was supported by from the Shingu University Industry-Academic Cooperation Foundation Grant 2022.

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