Characterization of prostate microstructure using water diffusion and NMR relaxation [0.03%]
利用扩散和NMR弛豫表征前列腺微结构
Gregory Lemberskiy,Els Fieremans,Jelle Veraart et al.
Gregory Lemberskiy et al.
For many pathologies, early structural tissue changes occur at the cellular level, on the scale of micrometers or tens of micrometers. Magnetic resonance imaging (MRI) is a powerful non-invasive imaging tool used for medical diagnosis, but ...
Ileana O Jelescu,Matthew D Budde
Ileana O Jelescu
Diffusion MRI is arguably the method of choice for characterizing white matter microstructure in vivo. Over the typical duration of diffusion encoding, the displacement of water molecules is conveniently on a length scale similar to that of...
Influence of the size and curvedness of neural projections on the orientationally averaged diffusion MR signal [0.03%]
神经投射的大小和曲率对其定向平均扩散磁共振信号的影响
Evren Özarslan,Cem Yolcu,Magnus Herberthson et al.
Evren Özarslan et al.
Neuronal and glial projections can be envisioned to be tubes of infinitesimal diameter as far as diffusion magnetic resonance (MR) measurements via clinical scanners are concerned. Recent experimental studies indicate that the decay of the ...
Effective potential for magnetic resonance measurements of restricted diffusion [0.03%]
受限扩散的磁共振有效势能测量方法
Evren Özarslan,Cem Yolcu,Magnus Herberthson et al.
Evren Özarslan et al.
The signature of diffusive motion on the NMR signal has been exploited to characterize the mesoscopic structure of specimens in numerous applications. For compartmentalized specimens comprising isolated subdomains, a representation of indiv...
High Field In vivo13C Magnetic Resonance Spectroscopy of Brain by Random Radiofrequency Heteronuclear Decoupling and Data Undersampling [0.03%]
基于自由感应衰减和 undersampling 的高场体内脑的 13C 磁共振波谱学研究
Ningzhi Li,Shizhe Li,Jun Shen
Ningzhi Li
In vivo13C magnetic resonance spectroscopy (MRS) is a unique and effective tool for studying dynamic human brain metabolism and the cycling of neurotransmitters. One of the major technical challenges for in vivo13C-MRS is the high radio fre...
BIM-Sim: Interactive Simulation of Broadband Imaging Using Mie Theory [0.03%]
基于Mie理论的宽带成像互动仿真(BIM- Sim)
Sebastian Berisha,Thomas van Dijk,Rohit Bhargava et al.
Sebastian Berisha et al.
Understanding the structure of a scattered electromagnetic (EM) field is critical to improving the imaging process. Mechanisms such as diffraction, scattering, and interference affect an image, limiting the resolution, and potentially intro...
Task-Related Modulations of BOLD Low-Frequency Fluctuations within the Default Mode Network [0.03%]
任务相关的大脑默认模体网络低频振荡信号的调制规律研究
Silvia Tommasin,Daniele Mascali,Tommaso Gili et al.
Silvia Tommasin et al.
Spontaneous low-frequency Blood-Oxygenation Level-Dependent (BOLD) signals acquired during resting state are characterized by spatial patterns of synchronous fluctuations, ultimately leading to the identification of robust brain networks. T...
Haoyuan Huang,Wentao Song,James Rieffel et al.
Haoyuan Huang et al.
Biomedical applications of porphyrins and related molecules have been extensively pursued in the context of photodynamic therapy. Recent advances in nanoscale engineering have opened the door for new ways that porphyrins stand to potentiall...
Temporal Information Entropy of the Blood-Oxygenation Level-Dependent Signals Increases in the Activated Human Primary Visual Cortex [0.03%]
人脑初级视觉皮层激活时血氧水平依赖信号的时序信息熵增加
Mauro DiNuzzo,Daniele Mascali,Marta Moraschi et al.
Mauro DiNuzzo et al.
Time-domain analysis of blood-oxygenation level-dependent (BOLD) signals allows the identification of clusters of voxels responding to photic stimulation in primary visual cortex (V1). However, the characterization of information encoding i...
Parsimonious continuous time random walk models and kurtosis for diffusion in magnetic resonance of biological tissue [0.03%]
磁共振生物组织扩散的简约连续时间随机游走模型及峰度属性研究
Carson Ingo,Yi Sui,Yufen Chen et al.
Carson Ingo et al.
In this paper, we provide a context for the modeling approaches that have been developed to describe non-Gaussian diffusion behavior, which is ubiquitous in diffusion weighted magnetic resonance imaging of water in biological tissue. Subseq...