NDLI: A study on a method to reduce the effect of the cross-talk artifact in a simultaneous, multiple-slice, plane, oblique MRI scan

Content Provider	Springer Nature Link
Author	Chung, Woon Kwan Lee, Hae Kag Lee, Sun Yeob Cho, Jae Hwan Cho, Moo Seong Park, Cheol Soo Kim, Eng Chan Dong, Kyung Rae Shin, Jae Woo Cho, Young Kuk Kim, Sung Kyu Kim, Young Jae
Copyright Year	2012
Abstract	The aim of this study was to reduce the effect of cross-talk artifacts on the region of interest (ROI) and to improve the diagnostic value of an image by conducting an examination using the linear (series) method, rather than the interleave method, based on the time concept, which is a basic principle of MRI, with a focus on the T1-weighted image, which has a strong effect on the cross-talk artifact. A water phantom was placed in the center of a brain coil before using the interleave method and the linear method to obtain cross-sectional images. A sagittal oblique scan was conducted to ensure that the slice groups intersected one another. A reference image was also acquired at TR (time of repetition) = 500 msec. Subsequently, the TR was changed to 600 and 700 msec to conduct scans. The analysis method was to use the interleave method and the linear method to compare the effects of the cross-talk artifacts and the TR. As scanned images were suggested, the SNR (signal to noise ratio) for the ROI was measured. According to the study results, the effects of cross-talk artifacts were reduced more significantly in the image scanned using the linear method than in that using the interleave method. When the SNRs of the images scanned in the interleave method and the linear method were compared, the image scanned in the linear method showed higher SNRs for the anterior and the posterior parts at TR = 500, 600, and 700 msec. On the other hand, the image scanned in the interleave method showed an increase in the SNR for the middle part, where the cross-talk artifacts did not appear. This means that the cross-talk artifacts were reduced in the image scanned using the linear method, which resulted in an increase in the SNR. Overall, the SNRs of each image for the interleave method and the linear method were highest at TR = 700 msec. In conclusion, the linear method is selected to reduce the effects of cross-talk artifacts in a simultaneous and multiple slice plane oblique scan where the TR is extended.
Starting Page	807
Ending Page	814
Page Count	8
File Format	PDF
ISSN	03744884
Journal	Journal of the Korean Physical Society
Volume Number	61
Issue Number	5
e-ISSN	19768524
Language	English
Publisher	The Korean Physical Society
Publisher Date	2012-09-12
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Interleave method SNR Theoretical, Mathematical and Computational Physics Cross-talk artifact Linear method Physics Particle and Nuclear Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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