The anomalous diffusion of biological water provides microstructural and physiological information of brain tissue
نویسندگان
چکیده
a CNR ISC UOS Roma Sapienza, Sapienza University of Rome, Rome, 00185, Italy b SAIMLAL Dept., Morpho-functional Sciences, Sapienza University of Rome, Rome, Italy c MIRCen, Commissariat à l'Energie Atomique, Fountain Aux Roses, France d ImpAct Team, Lyon Neuroscience Research Center, Lyon, France e SAIMLAL Dept., Morphogenesis & Tissue Engineering, Sapienza University of Rome, Rome, Italy f NeuroImaging Laboratory, Santa Lucia Foundation, Rome, Italy
منابع مشابه
Characterization of Cerebral White Matter Properties Using Quantitative Magnetic Resonance Imaging Stains
The image contrast in magnetic resonance imaging (MRI) is highly sensitive to several mechanisms that are modulated by the properties of the tissue environment. The degree and type of contrast weighting may be viewed as image filters that accentuate specific tissue properties. Maps of quantitative measures of these mechanisms, akin to microstructural/environmental-specific tissue stains, may be...
متن کاملNumerical simulation of anomalous diffusion with application to medical imaging
Anomalous diffusion is applicable in environments that are not locally homogeneous, such as human brain tissue. In such environments the model of restricted diffusion commonly employed in the analysis of diffusion magnetic resonance data is not valid. Anomalous diffusion displays a nonlinear time dependence for the mean-squared displacement, and provides a prediction of a stretched exponential ...
متن کاملSpatio-temporal anomalous diffusion imaging: results in controlled phantoms and in excised human meningiomas.
Recently, we measured two anomalous diffusion (AD) parameters: the spatial and the temporal AD indices, called γ and α, respectively, by using spectroscopic pulse gradient field methods. We showed that γ quantifies pseudo-superdiffusion processes, while α quantifies subdiffusion processes. Here, we propose γ and α maps obtained in a controlled heterogeneous phantom, comprised of packed micro-be...
متن کاملDT-MRI Tractography and its Application in Cognitive Neuroscience
Recent advancement of MRI techniques and development of new methods of image analysis have allowed us to study large neural tracts within the human brain. This is based on the principle of diffusion tensor MRI that is similar to that of diffusion-weighted imaging but takes magnitude and direction of the diffusion of water into account. Using this technique we have been able to define large neur...
متن کاملDT-MRI Tractography and its Application in Cognitive Neuroscience
Recent advancement of MRI techniques and development of new methods of image analysis have allowed us to study large neural tracts within the human brain. This is based on the principle of diffusion tensor MRI that is similar to that of diffusion-weighted imaging but takes magnitude and direction of the diffusion of water into account. Using this technique we have been able to define large neur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2017