Huang, Jianpan Chen, Lin Chan, Kannie W Y Cai, Congbo Cai, Shuhui Chen, Zhong
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
Single-shot spatiotemporally encoded (SPEN) MRI has been validated to possess considerable performance in both spatial and temporal resolution. Water/fat separation is essential for MRI applications in which only water signal is needed. In this article, a super-resolved water/fat image reconstruction method (dubbed SWAF) combined prior knowledge wa...
Zhang, Yan Shen, Jun
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
Magnetic resonance spectroscopy (MRS) can noninvasively detect metabolites in vivo, including glutamate (Glu). However, quantification is known to be affected by the overlaps among metabolite resonance lines and background macromolecule signals. We found that adding a moderate amount of noise or line broadening (2 Hz) caused large variations in con...
Milshteyn, Eugene Reed, Galen D Gordon, Jeremy W von Morze, Cornelius Cao, Peng Tang, Shuyu Leynes, Andrew P Larson, Peder E Z Vigneron, Daniel B
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
As in conventional 1H MRI, T1 and T2 relaxation times of hyperpolarized (HP) 13C nuclei can provide important biomedical information. Two new approaches were developed for simultaneous T1 and T2 mapping of HP 13C probes based on balanced steady state free precession (bSSFP) acquisitions: a method based on sequential T1 and T2 mapping modules, and a...
Kay, Lewis E
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
Peña-Nogales, Óscar Hernando, Diego Aja-Fernández, Santiago de Luis-Garcia, Rodrigo
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
In this manuscript we derive the Cramér-Rao Lower Bound (CRLB) of the monoexponential diffusion-weighted signal model under a realistic noise assumption, and propose a formulation to obtain optimized sets of b-values that maximize the noise performance of the Apparent Diffusion Coefficient (ADC) maps given a target ADC and a signal-to-noise ratio. ...
Paruzzo, Federico M Emsley, Lyndon
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
The development of homonuclear dipolar decoupling sequences to obtain high-resolution 1H NMR spectra from solids has recently celebrated its 50th birthday. Over the years, a series of different decoupling schemes have been developed, starting with the pioneering Lee-Goldburg and WAHUHA sequences up to the most recent generation of experimentally op...
Golysheva, Elena A Samoilova, Rimma I De Zotti, Marta Toniolo, Claudio Formaggio, Fernando Dzuba, Sergei A
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
In frozen biological media and molecular glasses only restricted motions exist; because of the weakness and disorder of intermolecular bonds these motions may have stochastic nature. Electron spin echo (ESE) spectroscopy of spin-labeled molecules allows detecting their restricted stochastic rotations (stochastic molecular librations). As in molecul...
Kagawa, Akinori Miyanishi, Koichiro Ichijo, Naoki Negoro, Makoto Nakamura, Yushi Enozawa, Hideo Murata, Tsuyoshi Morita, Yasushi Kitagawa, Masahiro
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
Dissolution dynamic nuclear polarization (DNP) has wide variety of important applications such as real-time monitoring of chemical reactions and metabolic imaging. We construct DNP using photoexcited triplet electron spins (Triplet-DNP) apparatus combined with dissolution apparatus for solution NMR in a high magnetic field. Triplet-DNP enables us t...
Long, Zheng Park, Sang Ho Opella, Stanley J
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
Extensive deuteration can be used to simplify NMR spectra by "diluting" and minimizing the effects of the abundant 1H nuclei. In solution-state NMR and magic angle spinning solid-state NMR of proteins, perdeuteration has been widely applied and its effects are well understood. Oriented sample solid-state NMR of proteins, however, is at a much earli...
Zhang, Rongchun Nishiyama, Yusuke Ramamoorthy, Ayyalusamy
Published in
Journal of magnetic resonance (San Diego, Calif. : 1997)
Multidimensional solid-state NMR spectroscopy plays a significant role in offering atomic-level insights into molecular systems. In particular, heteronuclear chemical shift correlation (HETCOR) experiments could provide local chemical and structural information in terms of spatial heteronuclear proximity and through-bond connectivity. In solid stat...
