Case Study of Quality Assurance for MDCT Image Quality Evaluation Using AAPM CT Performance Phantom

AAPM CT 성능 평가용 팬텀을 이용한 전산화단층촬영의 영상 평가를 위한 정도관리 사례 연구

  • 장근조 (예수병원 영상의학과) ;
  • 권대철 (서울대학교병원 영상의학과)
  • Published : 2007.07.28


The increasing use of computed tomography (CT) as a diagnostic tool creates the need from and efficient means of evaluating the performance of the CT scanner now in use. Accordingly, acceptance testing and quality assurance of CT is of great importance. The aim of this study is to analyze of AAPM CT performance phantom in the CT accreditation program. The modular phantom offers the CT system with which to measure eight performance parameters. The parameters are listed of CT attenuation coefficient of water, noise, uniformity, spatial resolution, contrast resolution, slice thickness (5 and 10 mm), artifacts and alignment. The phantom evaluation was done by two radiologists. The acceptance testing protocol described here in demonstrates the successful of the guidelines for the quality assurance using AAPM CT performance phantom. We need to be upgraded for the CT image quality and make the standard reference of the quality assurance in the CT.


AAPM;Phantom;Quality Assurance;Computed Tomography