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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.3
- 수록면
- 115 - 124 (10page)
이용수
이 논문의 연구 히스토리 (5)
2018
A Study on Image Distortion by Contrast Agent Concentration according to 1.5T and 3.0T in Diffusion Weighted Image
Yong Soo Han
,
Ki Chang Nam
,
Hyung Shin Pa
외 6명
Journal of Magnetics
2018.12
학술저널
A Study on the Image Distortion and Signal Intensity Change due to the Correlation between Segment and GRAPPA in RESOLVE DWI when using Gd Contrast Agent
Yong Soo Han
,
Cheol Soo Pa
,
k
한국자기학회 학술연구발표회 논문개요집
2018.11
학술대회자료
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초록· 키워드
오류제보하기
The present study analyzes T1 TSE and T1 slice sel. IR (dark_fluid) signal strength according to the degree of gadolinium contrast agent dilution and analyzes the turbo factors with regard to changes in the maximum and overall signal strength to study correlations between changes and signal-to-noise ratios (SNRs) and compare peak-to-peak SNR (PSNR) enhancement in order to improve the quality of T1-weighted images. Enhancement TR (600 msec) evaluated to determine the T1 TSE turbo factor and obtain the maximum signal strength, T1WI were used sequentially to experiment with turbo factors_1–4. T1 slice sel. IR (dark–fluid) was used to sequentially test turbo factors_2–5 but not turbo factor_1 at a TR (1500 msec) and compare data at an increase in T1 of 900 msec. The T1 TSE was reduced according to the contrast agent concentration. Phantom signal strength increased, whereas turbo factors_1–4 exhibited maximum signal strength at a concentration of 3 mmol, followed by a gradual decrease. In the turbo factors_2–5, the signal strength increased sharply to maximum signal strength at 0.7 mmol, followed by a reduction. T1 TSE had a greater maximum signal strength than did T1 slice sel. IR (dark_fluid). A comparison of SNR found that T1 TSE imaging was superior (33.3 ㏈) in turbo factor_1 and T1 slice sel. IR (dark_fluid) was highest (33.9 ㏈) at turbo factor_5. A PSNR comparison analysis was not sufficient to distinguish between the images obtained with both techniques at 30 ㏈ or higher under all experimental conditions.
목차
1. Introduction
2. Theory
3. Materials and Methods
4. Results
5. Discussion
6. Conclusions
References
참고문헌 (18)
참고문헌 신청
J. Masuda, T. Nabika, and Y. Notsu, Curr. Opin. Neurol. 14, 77 (2001).
W. D. Taylor, M. E. Payne, K. R. Krishnan, H. R. Wagner, J. M. Provenzale, D. C. Steffens, and J. R. MacFall, Biol. Psychiatry 50, 179 (2001).
K. R. Krishnan, Am. Heart J. 140, 70 (2000).
J. H. Choi, S. M. Lim, and Y. Kim, J. Korean Radiol. Soc. 64, 317 (2011).
B. J. Park, M. G. Kim, S. I. Suh, S. J. Hong, K. R. Cho, B. K. Seo, K. Y. Lee, N. J. Lee, and J. H. Kim, J. Korean Med. 44, 317 (2001).
W. D. Taylor, M. E. Payne, K. R. Krishnan, H. R. Wagner, J. M. Provenzale, D. C. Steffens, and J. R. MacFall, Biol. Psychiatry 50, 179 (2001).
K. R. Krishnan, Am. Heart J. 140, 70 (2000).
J. H. Choi, S. M. Lim, and Y. Kim, J. Korean Radiol. Soc. 64, 317 (2011).
B. J. Park, M. G. Kim, S. I. Suh, S. J. Hong, K. R. Cho, B. K. Seo, K. Y. Lee, N. J. Lee, and J. H. Kim, J. Korean Med. 44, 317 (2001).
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UCI(KEPA) : I410-ECN-0101-2016-428-002656192