Incidental magnetization transfer effects in multislice brain MRI at 3.0T

Yongmin Chang; Sung Jin Bae; Young Ju Lee; Moon Jung Hwang; Sang Heun Lee; Jongmin Lee; Sang Kwon Lee; Seongku Woo

doi:10.1002/jmri.20867

Incidental magnetization transfer effects in multislice brain MRI at 3.0T

Yongmin Chang, Sung Jin Bae, Young Ju Lee, Moon Jung Hwang, Sang Heun Lee, Jongmin Lee, Sang Kwon Lee, Seongku Woo

Department of Medicine

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Purpose: To evaluate the effect of incidental magnetization transfer (iMT) in multislice brain imaging at 3.0T. Materials and Methods: The contribution of iMT to multislice brain MRI was evaluated at 3.0T. In 10 normal subjects we obtained multislice fast spin-echo (FSE) MR images using a 16-echo pulse train without an off-resonance MT pulse at 3.0T and 1.5T. We quantified the extent of iMT by calculating the iMT ratio (iMTR). Results: We found that the iMT contrast (iMTC) has a greater effect at 3.0T. As the number of slices increased in multislice FSE imaging, the difference between two field strengths became larger. Compared to WM structures, however, the difference in iMT effect between 1.5T and 3.0T was smaller in the case of GM structures. Conclusion: The iMTC has a greater effect at 3.0T. The strength of the iMT is different for different tissue types and also varies according to the number of slices used.

Original language	English
Pages (from-to)	862-865
Number of pages	4
Journal	Journal of Magnetic Resonance Imaging
Volume	25
Issue number	4
DOIs	https://doi.org/10.1002/jmri.20867
State	Published - Apr 2007

Keywords

Brain
Contrast mechanism
Magnetization transfer
MRI
Multi-slice interference

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10.1002/jmri.20867

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title = "Incidental magnetization transfer effects in multislice brain MRI at 3.0T",

abstract = "Purpose: To evaluate the effect of incidental magnetization transfer (iMT) in multislice brain imaging at 3.0T. Materials and Methods: The contribution of iMT to multislice brain MRI was evaluated at 3.0T. In 10 normal subjects we obtained multislice fast spin-echo (FSE) MR images using a 16-echo pulse train without an off-resonance MT pulse at 3.0T and 1.5T. We quantified the extent of iMT by calculating the iMT ratio (iMTR). Results: We found that the iMT contrast (iMTC) has a greater effect at 3.0T. As the number of slices increased in multislice FSE imaging, the difference between two field strengths became larger. Compared to WM structures, however, the difference in iMT effect between 1.5T and 3.0T was smaller in the case of GM structures. Conclusion: The iMTC has a greater effect at 3.0T. The strength of the iMT is different for different tissue types and also varies according to the number of slices used.",

keywords = "Brain, Contrast mechanism, Magnetization transfer, MRI, Multi-slice interference",

author = "Yongmin Chang and Bae, {Sung Jin} and Lee, {Young Ju} and Hwang, {Moon Jung} and Lee, {Sang Heun} and Jongmin Lee and Lee, {Sang Kwon} and Seongku Woo",

year = "2007",

month = apr,

doi = "10.1002/jmri.20867",

language = "English",

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T1 - Incidental magnetization transfer effects in multislice brain MRI at 3.0T

AU - Chang, Yongmin

AU - Bae, Sung Jin

AU - Lee, Young Ju

AU - Hwang, Moon Jung

AU - Lee, Sang Heun

AU - Lee, Jongmin

AU - Lee, Sang Kwon

AU - Woo, Seongku

PY - 2007/4

Y1 - 2007/4

N2 - Purpose: To evaluate the effect of incidental magnetization transfer (iMT) in multislice brain imaging at 3.0T. Materials and Methods: The contribution of iMT to multislice brain MRI was evaluated at 3.0T. In 10 normal subjects we obtained multislice fast spin-echo (FSE) MR images using a 16-echo pulse train without an off-resonance MT pulse at 3.0T and 1.5T. We quantified the extent of iMT by calculating the iMT ratio (iMTR). Results: We found that the iMT contrast (iMTC) has a greater effect at 3.0T. As the number of slices increased in multislice FSE imaging, the difference between two field strengths became larger. Compared to WM structures, however, the difference in iMT effect between 1.5T and 3.0T was smaller in the case of GM structures. Conclusion: The iMTC has a greater effect at 3.0T. The strength of the iMT is different for different tissue types and also varies according to the number of slices used.

AB - Purpose: To evaluate the effect of incidental magnetization transfer (iMT) in multislice brain imaging at 3.0T. Materials and Methods: The contribution of iMT to multislice brain MRI was evaluated at 3.0T. In 10 normal subjects we obtained multislice fast spin-echo (FSE) MR images using a 16-echo pulse train without an off-resonance MT pulse at 3.0T and 1.5T. We quantified the extent of iMT by calculating the iMT ratio (iMTR). Results: We found that the iMT contrast (iMTC) has a greater effect at 3.0T. As the number of slices increased in multislice FSE imaging, the difference between two field strengths became larger. Compared to WM structures, however, the difference in iMT effect between 1.5T and 3.0T was smaller in the case of GM structures. Conclusion: The iMTC has a greater effect at 3.0T. The strength of the iMT is different for different tissue types and also varies according to the number of slices used.

KW - Brain

KW - Contrast mechanism

KW - Magnetization transfer

KW - MRI

KW - Multi-slice interference

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Incidental magnetization transfer effects in multislice brain MRI at 3.0T

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