Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Dehe Weng"'
Publikováno v:
Frontiers in Neuroscience, Vol 15 (2021)
The impairment of microvessels can lead to neurologic diseases such as stroke and vascular dementia. The imaging of lumen and vessel wall of perforating arteries requires an extremely high resolution due to their small caliber size. Current imaging t
Externí odkaz:
https://doaj.org/article/0ec4c8cabbbe421ab26851e4b3c79dc7
Autor:
Shi-Jun Zhang, Yi-Xiang Wang, Jing Yuan, Jiyang Jin, Yuan-Cheng Wang, Di Chang, Dehe Weng, Andreas Greiser, Shenghong Ju
Publikováno v:
PLoS ONE, Vol 9, Iss 3, p e93124 (2014)
OBJECTIVE: Our purpose was to validate an early enhancement time point for accurately measuring the myocardial contrast partition coefficient (lambda) using dynamic-equilibrium magnetic resonance imaging. MATERIALS AND METHODS: The pre- and post-cont
Externí odkaz:
https://doaj.org/article/7bac564de17046da9967dc6ea1d89c9a
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 21, Iss 6, p 971 (2010)
The present study made evaluations of SeaWiFS-derived and MODIS-derived Chlorophyll a (Chl a) concentrations in the Northern South China Sea (NSCS), using in situ data collected during two research cruises which were conducted during the summer of 20
Externí odkaz:
https://doaj.org/article/4b3610d9e8544440b33c940e1f3bacf2
Autor:
Huilou Liang, Ziyi Pan, Chencan Qian, Chengwen Liu, Kaibao Sun, Dehe Weng, Jing An, Yan Zhuo, Danny J. J. Wang, Hua Guo, Rong Xue
Publikováno v:
Magnetic Resonance in Medicine. 88:1303-1313
To develop a 2D multi-echo passband balanced SSFP (bSSFP) sequence using an echo-train readout with a sequential phase-encoding order (sequential multi-echo bSSFP), and evaluate its performance in fast functional brain imaging at 7 T.As images of seq
Autor:
Bo Wang, Zihao Zhang, Xiaofeng Deng, Zhentao Zuo, Rong Xue, Ning Wei, Dehe Weng, Jizong Zhao, Jing An
Publikováno v:
Magnetic Resonance Imaging. 33:1043-1050
Purpose Time-of-flight (TOF) MR angiography has an advantage of contrast and resolution in ultra-high field (7 T) MRI systems. However, increased specific absorption rate (SAR) prohibits the application of spatial saturation band, leading to venous c
Publikováno v:
Neuroradiology. 60(11)
To evaluate the quality of time-of-flight MR angiography (TOF-MRA) with venous suppression at 7T on imaging superficial temporal artery (STA). A recently developed segmented TOF technique with reduced specific absorption rate (SAR) of venous suppress
Autor:
Dehe Weng, Bensheng Qiu, Hairong Zheng, Xiang Feng, Guoxi Xie, Xin Liu, Caiyun Shi, Yibiao Song
Publikováno v:
Magnetic Resonance Imaging. 32:175-183
Joint estimation of coil sensitivities and output image (JSENSE) is a promising approach that improves the reconstruction of parallel magnetic resonance imaging (pMRI). However, when acceleration factor increases, the signal to noise ratio (SNR) of J
Publikováno v:
Magnetic Resonance in Medicine. 65:1314-1325
In MRI, the suppression of fat signal is very important for many applications. Multipoint Dixon based water-fat separation methods are commonly used due to its robustness to B(0) homogeneity compared with other fat suppression methods, such as spectr
Publikováno v:
Magnetic Resonance Imaging. 28:418-426
A model-based proton resonance frequency shift (PRFS) thermometry method was developed to significantly reduce the temperature quantification errors encountered in the conventional phase mapping method and the spatiotemporal limitations of the spectr
Publikováno v:
Magnetic Resonance in Medicine. 62:1251-1260
The conventional phase difference method for MR thermometry suffers from disturbances caused by the presence of lipid protons, motion-induced error, and field drift. A signal model is presented with multi-echo gradient echo (GRE) sequence using a fat