Characterizing the field-dependent T1-relaxation and imaging of ferrofluids using high-Tc superconducting quantum interference device magnetometer in low magnetic fields

S. H. Liao; Hong Chang Yang; H. E. Horng; C. W. Liu; H. H. Chen; M. J. Chen; K. L. Chen; C. I. Liu; L. M. Wang

doi:10.1063/1.4770304

Characterizing the field-dependent T₁-relaxation and imaging of ferrofluids using high-T_c superconducting quantum interference device magnetometer in low magnetic fields

S. H. Liao, Hong Chang Yang^*, H. E. Horng, C. W. Liu, H. H. Chen, M. J. Chen, K. L. Chen, C. I. Liu, L. M. Wang

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

4 引文斯高帕斯（Scopus）

摘要

In this paper, we investigate the field-dependent T₁-relaxation and T₁-contrast imaging of ferrofluids using high-T_c superconducting quantum interference device (SQUID)-detected nuclear magnetic resonance and imaging in low magnetic fields, where T₁ is the spin-lattice relaxation time. It was found that the 1/T₁ of ferrofluids increases when the prepolarization field increases. We attribute this to the enhanced magnetic-field gradients generated from the induced magnetization that accelerates the T₁-relaxation more in a high strength of fields in comparison to a low strength of fields. Using phantoms with different relaxation times, the T₁-contrast images are demonstrated in low magnetic fields, which can be promising for discriminating tumors.

原文	英語
文章編號	123908
期刊	Journal of Applied Physics
卷	112
發行號	12
DOIs	https://doi.org/10.1063/1.4770304
出版狀態	已發佈 - 2012 12月 15

ASJC Scopus subject areas

一般物理與天文學

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Liao, S. H., Yang, H. C., Horng, H. E., Liu, C. W., Chen, H. H., Chen, M. J., Chen, K. L., Liu, C. I., & Wang, L. M. (2012). Characterizing the field-dependent T₁-relaxation and imaging of ferrofluids using high-T_c superconducting quantum interference device magnetometer in low magnetic fields. Journal of Applied Physics, 112(12), 文章 123908. https://doi.org/10.1063/1.4770304

@article{b979693394614c8f838e909cc8992430,

title = "Characterizing the field-dependent T1-relaxation and imaging of ferrofluids using high-Tc superconducting quantum interference device magnetometer in low magnetic fields",

abstract = "In this paper, we investigate the field-dependent T1-relaxation and T1-contrast imaging of ferrofluids using high-Tc superconducting quantum interference device (SQUID)-detected nuclear magnetic resonance and imaging in low magnetic fields, where T1 is the spin-lattice relaxation time. It was found that the 1/T1 of ferrofluids increases when the prepolarization field increases. We attribute this to the enhanced magnetic-field gradients generated from the induced magnetization that accelerates the T1-relaxation more in a high strength of fields in comparison to a low strength of fields. Using phantoms with different relaxation times, the T1-contrast images are demonstrated in low magnetic fields, which can be promising for discriminating tumors.",

author = "Liao, {S. H.} and Yang, {Hong Chang} and Horng, {H. E.} and Liu, {C. W.} and Chen, {H. H.} and Chen, {M. J.} and Chen, {K. L.} and Liu, {C. I.} and Wang, {L. M.}",

note = "Funding Information: This work was supported by the National Science Council of Taiwan under Grant Nos. NSC100-2120-M-002-015, NSC101-2120-M-168-001, and NSC 100-2112-M-003-011-MY2 and National Taiwan Normal University under Grant No. 101T309102. ",

year = "2012",

month = dec,

day = "15",

doi = "10.1063/1.4770304",

language = "English",

volume = "112",

journal = "Journal of Applied Physics",

issn = "0021-8979",

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TY - JOUR

T1 - Characterizing the field-dependent T1-relaxation and imaging of ferrofluids using high-Tc superconducting quantum interference device magnetometer in low magnetic fields

AU - Liao, S. H.

AU - Yang, Hong Chang

AU - Horng, H. E.

AU - Liu, C. W.

AU - Chen, H. H.

AU - Chen, M. J.

AU - Chen, K. L.

AU - Liu, C. I.

AU - Wang, L. M.

N1 - Funding Information: This work was supported by the National Science Council of Taiwan under Grant Nos. NSC100-2120-M-002-015, NSC101-2120-M-168-001, and NSC 100-2112-M-003-011-MY2 and National Taiwan Normal University under Grant No. 101T309102.

PY - 2012/12/15

Y1 - 2012/12/15

N2 - In this paper, we investigate the field-dependent T1-relaxation and T1-contrast imaging of ferrofluids using high-Tc superconducting quantum interference device (SQUID)-detected nuclear magnetic resonance and imaging in low magnetic fields, where T1 is the spin-lattice relaxation time. It was found that the 1/T1 of ferrofluids increases when the prepolarization field increases. We attribute this to the enhanced magnetic-field gradients generated from the induced magnetization that accelerates the T1-relaxation more in a high strength of fields in comparison to a low strength of fields. Using phantoms with different relaxation times, the T1-contrast images are demonstrated in low magnetic fields, which can be promising for discriminating tumors.

AB - In this paper, we investigate the field-dependent T1-relaxation and T1-contrast imaging of ferrofluids using high-Tc superconducting quantum interference device (SQUID)-detected nuclear magnetic resonance and imaging in low magnetic fields, where T1 is the spin-lattice relaxation time. It was found that the 1/T1 of ferrofluids increases when the prepolarization field increases. We attribute this to the enhanced magnetic-field gradients generated from the induced magnetization that accelerates the T1-relaxation more in a high strength of fields in comparison to a low strength of fields. Using phantoms with different relaxation times, the T1-contrast images are demonstrated in low magnetic fields, which can be promising for discriminating tumors.

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Characterizing the field-dependent T1-relaxation and imaging of ferrofluids using high-Tc superconducting quantum interference device magnetometer in low magnetic fields

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Characterizing the field-dependent T₁-relaxation and imaging of ferrofluids using high-T_c superconducting quantum interference device magnetometer in low magnetic fields