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논문 기본 정보

자료유형
학술저널
저자정보
Yong Soo Han (Dongguk University Ilsan Medical Center) Ki Chang Nam (Dongguk University College of Medicine) Hyung Shin Park (Far East University) Sun Yeob Lee (Hallym Polytechnic University) Cheol Soo Park (Hallym Polytechnic University) Ho Beom Lee (Asan medical center) Sung Min Kim (Dongguk University)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.23 No.4
발행연도
2018.12
수록면
624 - 631 (8page)
DOI
10.4283/JMAG.2018.23.4.624

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The correlation between the readout segment and the GeneRalized Auto Calibrating Partial Parallel Acquisition (GRAPPA) acceleration factor in the Read out segmentation of long variable echo-trains Diffusion Weighted Image (RESOLVE DWI) after enhancement was analyzed to investigate the effects of the signal intensity and the image distortion on the difference of the main field and contrast agent concentration. Twenty - four phantoms were prepared for each concentration of contrast agent, and signal intensity and image distortion were evaluated. At 1.5T and 3.0T, images were acquired using Readout segment, GRAPPA acceleration factor and echo spacing parameters, and Roundness (%) was measured using Regions Of Interest Contours. As the readout segment increased, signal strength and image distortion decreased. As the GRAPPA acceleration factor increased, signal strength increased and image distortion decreased. In RESOLVE DWI, it is helpful to minimize the distortions and artifacts caused by the signal intensity detection in the contrast agent phantom experiment and confirm the correlation between the readout segment and the GRAPPA acceleration factor depending on the main field, thereby making it possible to produce images with high diagnostic value.

목차

1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
References

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