지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.6
- 수록면
- 227 - 233 (7page)
- DOI
- 10.4283/JMAG.2017.22.2.227
이용수
초록· 키워드
오류제보하기
The purpose of this study was to evaluate the effects of X-ray photon energy, tissue density, and the kernel essential for image reconstruction on the image quality by measuring HU and noise. Images were obtained by scanning the RMI density phantom within the CT device, and HU and noise were measured as follows: images were obtained by varying the tube voltages, the tube currents and eight different kernels. The greater the voltage-dependent change in the HU value but the noise was decreased. At all densities, changes in the tube current did not exert any significant influence on the HU value, whereas the noise value gradually decreased as the tube current increased. At all densities, changes in the kernel did not exert any significant influence on the HU value. The noise value gradually increased in the lower kernel range, but rapidly increased in the higher kernel range. HU is influenced by voltage and density, and noise is influenced by voltage, current, kernel, and density. This affects contrast resolution and spatial resolution.
목차
1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusion
References
참고문헌 (15)
참고문헌 신청
[학술지(정기간행물)] - H. C. Jang / 2014 / / J. The Korea Academia-Industrial Cooperation Soc 15 : 1584 ~
[학술지(정기간행물)] - S. M. Ha / 2015 / / J. Progress in Med. Phys 26 : 28 ~
[학술지(정기간행물)] - E. J. Balthazar / 1988 / / Am. J. Roentgenol 150 : 301 ~
[학술지(정기간행물)] - 이후민 / 2008 / MDCT에서의 Convolution Kernel 종류에 따른 공간 영역 필터링의 영상 평가 / 방사선기술과학 31 (1) : 71 ~ 82
[학술지(정기간행물)] - K. Ogden / 2004 / / Health Phys 86 : 397 ~
[학술지(정기간행물)] - S. M. Ha / 2015 / / J. Progress in Med. Phys 26 : 28 ~
[학술지(정기간행물)] - E. J. Balthazar / 1988 / / Am. J. Roentgenol 150 : 301 ~
[학술지(정기간행물)] - 이후민 / 2008 / MDCT에서의 Convolution Kernel 종류에 따른 공간 영역 필터링의 영상 평가 / 방사선기술과학 31 (1) : 71 ~ 82
[학술지(정기간행물)] - K. Ogden / 2004 / / Health Phys 86 : 397 ~
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