Jogi, Sandeep Panwar |  Peng, Qi... -  《NMR in biomedicine》 - 2024,37(12) - e5244～e5244 - 共16页

摘要：This study aimed to optimize the sampling of spin-lock times (TSLs) in quantitative T1 rho mapping for improved reproducibility. Two new TSL sampling schemes were proposed: (i) reproducibility-guided ...

关键词： artifacts |  quantitative MRI |  reproducibility |  spin-lock |  T1 rho |  spin‐lock |  T1ρ

Cho, Junghun |  Zhang, Jinwei... -  《Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine》 - 2022,87(3) - 1583～1594 - 共12页 - 被引量：7

摘要：Purpose To improve accuracy and speed of quantitative susceptibility mapping plus quantitative blood oxygen level-dependent magnitude (QSM+qBOLD or QQ) -based oxygen extraction fraction (OEF) mapping ...

关键词： cerebral metabolic rate of oxygen |  deep learning |  DL |  oxygen extraction fraction |  qBOLD |  QQ |  QQ-NET |  QSM |  QSM plus qBOLD |  quantitative blood oxygenation level-dependent imaging...

Jafari, Ramin |  Hectors, Stefanie J.... -  《NMR in biomedicine》 - 2021,34(1) - 共9页 - 被引量：7

摘要：To develop a method for noninvasive evaluation of liver fibrosis, we investigated the differential sensitivities of quantitative susceptibility mapping (QSM) and R-2* mapping using corrections for the...

关键词： liver fibrosis |  magnetic resonance imaging |  quantitative susceptibility mapping

Jafari, Ramin |  Spincemaille, Pascal... -  《Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine》 - 2021,85(4) - 2263～2277 - 共15页 - 被引量：22

摘要：Purpose To use a deep neural network (DNN) for solving the optimization problem of water/fat separation and to compare supervised and unsupervised training.

关键词： deep learning |  label free |  unsupervised |  water |  fat separation

Sheth, Sujit |  Allen, Christopher J...... -  《Clinical imaging》 - 2019,55 - 65～70 - 共6页 - 被引量：9

摘要：Purpose: To compare measurement of the liver iron concentration in patients with transfusional iron overload by magnetic resonance imaging (MRI), using R2*, and by magnetic susceptometry, using a new ...

关键词： MRI |  R2* |  Magnetic susceptometry |  Superconducting transition temperature |  Liver iron concentration |  High-transition-temperature superconductors

Guo, Yihao |  Liu, Zhe... -  《NMR in biomedicine》 - 2019,32(11) - 共10页 - 被引量：7

摘要：Quantitative susceptibility mapping (QSM) of human spinal vertebrae from a multi-echo gradient-echo (GRE) sequence is challenging, because comparable amounts of fat and water in the vertebrae make it ...

关键词： fat-water separation |  in-phase echo |  multi-peak fat model |  proton density fat fraction |  quantitative susceptibility mapping |  single peak fat model |  spine |  vertebrae

Li, Chang |  Ye, Jing... -  《Magnetic resonance imaging: An International journal of basic research and clinical applications》 - 2019,63 - 267～273 - 共7页 - 被引量：3

摘要：Purpose: To examine the feasibility of MR diffusion kurtosis imaging (DKI) for characterizing nonalcoholic fatty liver disease (NAFLD) and diagnosing nonalcoholic steatohepatitis (NASH).

关键词： Nonalcoholic fatty liver disease |  Nonalcoholic steatohepatitis |  Diffusion magnetic resonance imaging |  Diagnostic imaging

Jafari, Ramin. -  University of Alaska... -  Aerospace engineerin... -  M.S. -  Bristow, William A. - 2013, - 1～157 - 共158页

摘要：The Super Dual Auroral Radar Network (SuperDARN) is an international radar network to study the ionosphere and upper atmosphere. The primary target of SuperDARN is field-aligned plasma irregularities ...

Jafari, Ramin |  Tohidi, Maryam... -  《acs applied nano materials》 - 2023, - 共11页

摘要：Tissue engineering has emerged as an alternative to typical graft surgeries in recent decades. This study focuses on exploring the potential of BioMIL-4, a biological metal-organic framework (BioMOF),...

关键词： BioMIL-4 |  alendronate |  alginate |  chitosan |  scaffold |  bone tissue engineering |  biomimeticmineralization |  METAL-ORGANIC FRAMEWORKS |  POROUS SCAFFOLDS |  ALGINATE...