SQUID-Based Low Field MRI System for Small Animals

Hatta, Junichi; Miyamoto, Masatoshi; Adachi, Yoshiaki; Kawai, Jun; Uehara, Gen; Kado, H.

doi:10.1109/tasc.2010.2091101

Cited by 12 publications

(2 citation statements)

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“…However, specific gravity, cross-section, radiofax, and X-ray analysis techniques are destructive and invasive to varying degrees and do not consistently detect changes in moisture in the sample [15]. The NMR technique, as an emerging analytical test, has achieved great success in the fields of medicine [16], biology [17], and the food industry [18], with advantages such as non-invasiveness, rapidity, and high efficiency. NMR is a physical phenomenon in which nuclear magnetic resonance occurs by applying radio frequency pulses (RF) to a spinning atomic nucleus that is in a static magnetic field B 0 , causing the H protons in it to be excited [19,20].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the soybean infiltration process utilizing low-field nuclear magnetic resonance technology

Guo,

Wang,

Hao

et al. 2024

PLoS ONE

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This paper employs low-field nuclear magnetic resonance (LF-NMR) technology to meticulously analyze and explore the intricate soybean infiltration process. The methodology involves immersing soybeans in distilled water, with periodic implementation of Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence experiments conducted at intervals of 20 to 30 minutes to determine the relaxation time T2. Currently, magnetic resonance imaging (MRI) is conducted every 30 minutes. The analysis uncovers the existence of three distinct water phases during the soybean infiltration process: bound water denoted as T21, sub-bound water represented by T22, and free water indicated as T23. The evolution of these phases unfolds as follows: bound water T21 displays a steady oscillation within the timeframe of 0 to 400 minutes; sub-bound water T22 and free water T23 exhibit a progressive pattern characterized by a rise-stable-rise trajectory. Upon scrutinizing the magnetic resonance images, it is discerned that the soybean infiltration commences at a gradual pace from the seed umbilicus. The employment of LF-NMR technology contributes significantly by affording an expeditious, non-destructive, and dynamic vantage point to observe the intricate motion of water migration during soybean infiltration. This dynamic insight into the movement of water elucidates the intricate mass transfer pathway within the soybean-water system, thus furnishing a robust scientific foundation for the optimization of processing techniques.

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Section: Introductionmentioning

confidence: 99%

Investigation of the soybean infiltration process utilizing low-field nuclear magnetic resonance technology

Guo,

Wang,

Hao

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Recent improvements in the field of magnetic resonance imaging (MRI) have shown that relatively low-magnetic fields lower than 0.5 Tesla can be used to achieve reasonable image quality compared to the clinical MR scanners that employ magnetic field strength stronger than 1 Tesla [1,2]. Compared to the conventional MR systems, low-field systems promise to provide more effective field homogeneity with the advantage of easy installation and cost-effective maintenance [3].…”

Section: Introductionmentioning

confidence: 99%