PURPOSE Diffusion tensor imaging (DTI) is known to suffer from long acquisition time in the orders of several minutes or even hours. Therefore, a feasible way to accelerate DTI data acquisition is highly desirable. In this article, the feasibility and efficacy of distributed compressed sensing to fast DTI is investigated by exploiting the joint sparsity prior in diffusion-weighted images. MET...

Diffusion tensor imaging (DTI) allows for noninvasive, in vivo visualization of white matter fiber tracts in the central nervous system by measuring the diffusion of water molecules. It provides both quantitative and qualitative (i.e., tractography) means to describe a region-of-interest. While protocols for the use of DTI are better established in the brain, the efficacy and potential applicat...

Introduction: MR diffusion tensor imaging (DTI) [1] has been increasingly used to quantitatively characterize the microstructure of ordered tissues such as the brain white matter. However, practical applications of DTI are hampered by the low SNR, long acquisition times, and low spatial resolution. Since in DTI essentially the same image (except for diffusion encoding) is acquired repeatedly, r...

We established a strategy to perform cross-validation of serial optical coherence scanner imaging (SOCS) and diffusion tensor imaging (DTI) on a postmortem human medulla. Following DTI, the sample was serially scanned by SOCS, which integrates a vibratome slicer and a multi-contrast optical coherence tomography rig for large-scale three-dimensional imaging at microscopic resolution. The DTI dat...

Background Visual snow syndrome (VSS) is a neurological condition characterized by flickering dots throughout the entire visual field. Both pathophysiology and possible location of VSS are still under debate. White matter abnormalities were investigated using diffusion tensor imaging (DTI) in patient with VSS. Methods A 28-year-old 10 healthy controls DTI. Diffusion parametric maps calculated r...

Um Destino Turístico Inteligente (DTI) tem como foco melhorar a experiência do turista, facilitada pela integração e utilização das Tecnologias da Informação Comunicação (TIC) nas cidades. O objetivo desse estudo foi investigar percepção dos turistas sobre o “grau de inteligência” um destino pode ser influenciada pelas dimensões DTI definidas literatura: Sustentabilidade, Acessibilidade, Tecnol...

Microstructural changes of White Matter (WM) associated with aging have been widely described through Diffusion Tensor Imaging (DTI) parameters. In parallel, White Matter Hyperintensities (WMH) as observed on a T2-weighted MRI are extremely common in older individuals. However, few studies have investigated both phenomena conjointly. The present study investigates aging effects on DTI parameter...

Introduction: Diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) combine magnetic resonance imaging (MRI) techniques and diffusion measures. In DWI, the contrast is defined by microscopic motion of water protons. Nowadays, DWI has become important for early diagnostic of acute stroke. DTI images are calculated from DWI images acquired in at least six directions, which give info...

Brain changes associated with Alzheimer's disease (AD) begin decades before disease diagnosis. While β-amyloid plaques and neurofibrillary tangles are defining features of AD, neuronal loss and synaptic pathology are closely related to the cognitive dysfunction. Brain imaging methods that are tuned to assess degeneration of myelinated nerve fibers in the brain (collectively called white matter)...

BACKGROUND Magnetic Resonance (MR) diffusion tensor imaging (DTI) is able to quantify in vivo tissue microstructure properties and to detect disease related pathology of the central nervous system. Nevertheless, DTI is limited by low spatial resolution associated with its low signal-to-noise-ratio (SNR). AIM The aim is to select a DTI sequence for brain clinical studies, optimizing SNR and re...