Transverse relaxivity of particulate MRI contrast media: From theories to experiments
抄録
<jats:title>Abstract</jats:title><jats:p>Computer simulations and experimental approach have been used to characterize the properties of particulate MRI contrast agents with special attention paid to the influence of particle size. Up to approximately 50 nm, an increase of the particle diameter leads to a strong enhancement of the transverse magnetization decay rate. For larger grains or aggregates, the decay rate measured without spin‐echo formation reaches a plateau. When observed through a spin‐echo sequence, the transverse magnetization decay rate becomes slower on increasing the particle size or on shortening the echo time. For these large particles, multiexponential decay rates are observed. Definition and measurement of relaxivity in such systems is discussed. © 1991 Academic Press, Inc.</jats:p>
収録刊行物
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- Magnetic Resonance in Medicine
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Magnetic Resonance in Medicine 22 (2), 178-182, 1991-12
Wiley
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詳細情報 詳細情報について
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- CRID
- 1362544419751848576
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- NII論文ID
- 30026139156
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- ISSN
- 15222594
- 07403194
- http://id.crossref.org/issn/07403194
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