Anisotropy

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  Subject Areas on Research

  • A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans. 
  • A biophysical model for cardiac microimpedance measurements. 
  • A case of frontal neuropsychological and neuroimaging signs following multiple primary-blast exposure. 
  • A change in the apparent diffusion coefficient after treatment with bevacizumab is associated with decreased survival in patients with recurrent glioblastoma multiforme. 
  • A computer model of engineered cardiac monolayers. 
  • A linear material model for fiber-induced anisotropy of the anulus fibrosus. 
  • A membrane model of electrically remodelled atrial myocardium derived from in vivo measurements. 
  • A microstructurally motivated model of the mechanical behavior of tissue engineered blood vessels. 
  • A nonlinear hyperelastic mixture theory model for anisotropy, transport, and swelling of annulus fibrosus. 
  • A resistor interpretation of general anisotropic cardiac tissue. 
  • A structural framework for interpretation of four-electrode microimpedance spectra in cardiac tissue. 
  • Absorption-induced trapping in an anisotropic magneto-optical trap. 
  • Acceleration of functional reentry by rapid pacing in anisotropic cardiac monolayers: formation of multi-wave functional reentries. 
  • Activating function of needle electrodes in anisotropic tissue. 
  • Adult age differences in the functional neuroanatomy of visual attention: a combined fMRI and DTI study. 
  • Advances in bioengineered conduits for peripheral nerve regeneration. 
  • Age-related differences in multiple measures of white matter integrity: A diffusion tensor imaging study of healthy aging. 
  • Aligned core-shell nanofibers delivering bioactive proteins. 
  • Alteration of Diffusion-Tensor Magnetic Resonance Imaging Measures in Brain Regions Involved in Early Stages of Parkinson's Disease. 
  • An integrative model of mouse cardiac electrophysiology from cell to torso. 
  • An ultrastructural analysis of collagen in tissue engineered arteries. 
  • Analysis of normal-appearing white matter in multiple sclerosis: comparison of diffusion tensor MR imaging and magnetization transfer imaging. 
  • Analysis of variability of fractional anisotropy values at 3T using a novel diffusion tensor imaging phantom. 
  • Anisotropic 2-D and 3-D averaging of fMRI signals. 
  • Anisotropic analysis of multi-component T2 and T1ρ relaxations in achilles tendon by NMR spectroscopy and microscopic MRI. 
  • Anisotropic and inhomogeneous tensile behavior of the human anulus fibrosus: experimental measurement and material model predictions. 
  • Anisotropic poly(ethylene glycol)/polycaprolactone hydrogel-fiber composites for heart valve tissue engineering. 
  • Anisotropic wetting surfaces with one-dimensional and directional structures: fabrication approaches, wetting properties and potential applications. 
  • Anisotropy, fiber curvature, and bath loading effects on activation in thin and thick cardiac tissue preparations: simulations in a three-dimensional bidomain model. 
  • Assessment of early response to tumor-treating fields in newly diagnosed glioblastoma using physiologic and metabolic MRI: initial experience. 
  • Assessment of quantitative magnetic resonance imaging metrics in the brain through the use of a novel phantom. 
  • Automated segmentation of neuroanatomical structures in multispectral MR microscopy of the mouse brain. 
  • Automatic clustering and population analysis of white matter tracts using maximum density paths. 
  • Biomechanical response of the human clavicle: the effects of loading direction on bending properties. 
  • Bipolar stimulation of a three-dimensional bidomain incorporating rotational anisotropy. 
  • Brain white matter changes associated with urological chronic pelvic pain syndrome: multisite neuroimaging from a MAPP case-control study. 
  • Cardiac propagation simulation. 
  • Cardiomyocyte cultures with controlled macroscopic anisotropy: a model for functional electrophysiological studies of cardiac muscle. 
  • Cerebral white matter integrity mediates adult age differences in cognitive performance. 
  • Changes in anisotropic conduction caused by remodeling cell size and the cellular distribution of gap junctions and Na(+) channels. 
  • Classification of polyhedral shapes from individual anisotropically resolved cryo-electron tomography reconstructions. 
  • Cocaine dependence does not contribute substantially to white matter abnormalities in HIV infection. 
  • Comparison of 3D conformal breast radiation treatment plans using the anisotropic analytical algorithm and pencil beam convolution algorithm. 
  • Compressed sensing in quantitative determination of GAG concentration in cartilage by microscopic MRI. 
  • Controlling the structural and functional anisotropy of engineered cardiac tissues. 
  • Correction for direction-dependent distortions in diffusion tensor imaging using matched magnetic field maps. 
  • Correlation of apparent diffusion coefficient and fractional anisotropy values in the developing infant brain. 
  • Correlation of diffusion tensor imaging parameters in the canine brain. 
  • Cortical and subcortical white matter abnormalities in adults with remitted first-episode mania revealed by Tract-Based Spatial Statistics. 
  • Cortical depth dependence of the diffusion anisotropy in the human cortical gray matter in vivo. 
  • Cortical white matter microstructural abnormalities in bipolar disorder. 
  • Degeneration affects the anisotropic and nonlinear behaviors of human anulus fibrosus in compression. 
  • Dependencies of multi-component T2 and T1ρ relaxation on the anisotropy of collagen fibrils in bovine nasal cartilage. 
  • Depth and orientational dependencies of MRI T(2) and T(1ρ) sensitivities towards trypsin degradation and Gd-DTPA(2-) presence in articular cartilage at microscopic resolution. 
  • Depth-dependent anisotropy of the micromechanical properties of the extracellular and pericellular matrices of articular cartilage evaluated via atomic force microscopy. 
  • Detection of hepatocellular carcinoma in patients with cirrhosis: added value of coronal reformations from isotropic voxels with 64-MDCT. 
  • Differential and simultaneous adenosine di- and triphosphate binding by MutS. 
  • Differential specificities and simultaneous occupancy of human MutSalpha nucleotide binding sites. 
  • Diffusion Tensor Imaging Detects Occult Cerebellar Injury in Severe Neonatal Hypoxic-Ischemic Encephalopathy. 
  • Diffusion tensor imaging analysis of the brain in the canine model of Krabbe disease. 
  • Diffusion tensor imaging assessment of brain white matter maturation during the first postnatal year. 
  • Diffusion tensor imaging findings suggestive of white matter alterations in a canine model of mucopolysaccharidosis type I. 
  • Diffusion tensor imaging identifies deficits in white matter microstructure in subjects with type 1 diabetes that correlate with reduced neurocognitive function. 
  • Diffusion tensor imaging of adult age differences in cerebral white matter: relation to response time. 
  • Diffusion tensor imaging of neural tissue organization: correlations between radiologic and histologic parameters. 
  • Diffusion tensor imaging studies in late-life depression: systematic review and meta-analysis. 
  • Diffusion-tensor imaging assessment of white matter maturation in childhood and adolescence. 
  • Diffusion-weighted MR imaging of the normal human spinal cord in vivo. 
  • Diffusional anisotropy in collagenous tissues: fluorescence imaging of continuous point photobleaching. 
  • Direct measurement of the Poisson's ratio of human patella cartilage in tension. 
  • Direction-dependent localization errors in SPECT images. 
  • Directional anisotropies reveal a functional segregation of visual motion processing for perception and action. 
  • Distribution of shear stress over smooth muscle cells in deformable arterial wall. 
  • Dorsolateral prefrontal cortex and anterior cingulate cortex white matter alterations in late-life depression. 
  • Editor's Highlight: Lower Fractional Anisotropy in the Globus Pallidus of Asymptomatic Welders, a Marker for Long-Term Welding Exposure. 
  • Effects of electroporation on the transmembrane potential distribution in a two-dimensional bidomain model of cardiac tissue. 
  • Efficient simulation of three-dimensional anisotropic cardiac tissue using an adaptive mesh refinement method. 
  • Electrophysiological effects of remodeling cardiac gap junctions and cell size: experimental and model studies of normal cardiac growth. 
  • Electrotonic loading of anisotropic cardiac monolayers by unexcitable cells depends on connexin type and expression level. 
  • Enhancing imaging systems using transformation optics. 
  • Evaluation of biaxial mechanical properties of soft tubes and arteries using sonometry. 
  • Evaluation of normal age-related changes in anisotropy during infancy and childhood as shown by diffusion tensor imaging. 
  • Evaluation of white matter anisotropy in Krabbe disease with diffusion tensor MR imaging: initial experience. 
  • Evidence of white matter tract disruption in MRI hyperintensities. 
  • Experimental and biphasic FEM determinations of the material properties and hydraulic permeability of the meniscus in tension. 
  • Finite element modeling of impulsive excitation and shear wave propagation in an incompressible, transversely isotropic medium. 
  • Finite element modeling predictions of region-specific cell-matrix mechanics in the meniscus. 
  • Finite volume stiffness matrix for solving anisotropic cardiac propagation in 2-D and 3-D unstructured meshes. 
  • Formation and dynamics of supported phospholipid membranes on a periodic nanotextured substrate. 
  • Fractional anisotropy to quantify cervical spondylotic myelopathy severity. 
  • Frontal white matter anisotropy and antidepressant remission in late-life depression. 
  • Frontostriatal white matter integrity mediates adult age differences in probabilistic reward learning. 
  • Functionally graded multilayer scaffolds for in vivo osteochondral tissue engineering. 
  • Gestational age and neonatal brain microstructure in term born infants: a birth cohort study. 
  • Glass-like phonon scattering from a spontaneous nanostructure in AgSbTe2. 
  • Global versus tract-specific components of cerebral white matter integrity: relation to adult age and perceptual-motor speed. 
  • Harmonizing DTI measurements across scanners to examine the development of white matter microstructure in 803 adolescents of the NCANDA study. 
  • Heritability of fractional anisotropy in human white matter: a comparison of Human Connectome Project and ENIGMA-DTI data. 
  • High-field (9.4 T) MRI of brain dysmyelination by quantitative mapping of magnetic susceptibility. 
  • Highly parallel acoustic assembly of microparticles into well-ordered colloidal crystallites. 
  • Identification of material properties of orthotropic elastic cylinders immersed in fluid using vibroacoustic techniques. 
  • Increasing the computational efficiency of a bidomain model of defibrillation using a time-dependent activating function. 
  • Influence of white matter conductivity anisotropy on electric field strength induced by electroconvulsive therapy. 
  • Insect communication: Polarized light as a butterfly mating signal. 
  • Insight into the CSA tensors of nucleobase carbons in RNA polynucleotides from solution measurements of residual CSA: towards new long-range orientational constraints. 
  • Integrating valve-inspired design features into poly(ethylene glycol) hydrogel scaffolds for heart valve tissue engineering. 
  • Investigating magnetic susceptibility of human knee joint at 7 Tesla. 
  • Krabbe disease treated with hematopoietic stem cell transplantation: serial assessment of anisotropy measurements--initial experience. 
  • Late-life depression and microstructural abnormalities in dorsolateral prefrontal cortex white matter. 
  • Magnetic susceptibility anisotropy of human brain in vivo and its molecular underpinnings. 
  • Magnetic susceptibility anisotropy of myocardium imaged by cardiovascular magnetic resonance reflects the anisotropy of myocardial filament α-helix polypeptide bonds. 
  • Magnetic susceptibility anisotropy outside the central nervous system. 
  • Measurement of J/ψ azimuthal anisotropy in Au+Au collisions at sqrt[s(NN)]=200 GeV. 
  • Mechanical anisotropy of ankyrin repeats. 
  • Mechanism of origin of conduction disturbances in aging human atrial bundles: experimental and model study. 
  • Microheterogeneity-induced conduction slowing and wavefront collisions govern macroscopic conduction behavior: A computational and experimental study. 
  • Microscopic diffusion tensor imaging of the mouse brain. 
  • Microstructural origins of gadolinium-enhanced susceptibility contrast and anisotropy. 
  • Modeling deep brain stimulation: point source approximation versus realistic representation of the electrode. 
  • Modeling the effects of electric fields on nerve fibers: determination of excitation thresholds. 
  • Multi-spin echo spatial encoding provides three-fold improvement of temperature precision during intermolecular zero quantum thermometry. 
  • Multiple sclerosis: diffusion tensor MR imaging for evaluation of normal-appearing white matter. 
  • Multiple-quantum vector field imaging by magnetic resonance. 
  • Myocardial fiber orientation mapping using reduced encoding diffusion tensor imaging. 
  • NMR structures of biomolecules using field oriented media and residual dipolar couplings. 
  • NMR studies of RNA dynamics and structural plasticity using NMR residual dipolar couplings. 
  • Normal and shear stresses influence the spatial distribution of intracellular adhesion molecule-1 expression in human umbilical vein endothelial cells exposed to sudden expansion flow. 
  • Novel anisotropic engineered cardiac tissues: studies of electrical propagation. 
  • Novel region of interest interrogation technique for diffusion tensor imaging analysis in the canine brain. 
  • On the feasibility of polyurethane based 3D dosimeters with optical CT for dosimetric verification of low energy photon brachytherapy seeds. 
  • One-year change in anterior cingulate cortex white matter microstructure: relationship with late-life depression outcomes. 
  • Peripheral nerve regeneration: an opinion on channels, scaffolds and anisotropy. 
  • Peritumoral brain regions in gliomas and meningiomas: investigation with isotropic diffusion-weighted MR imaging and diffusion-tensor MR imaging. 
  • Prenatal alcohol exposure reduces magnetic susceptibility contrast and anisotropy in the white matter of mouse brains. 
  • Preoperative evaluation of neural tracts by use of three-dimensional anisotropy contrast imaging in a patient with brainstem cavernous angioma: technical case report. 
  • Progression of corpus callosum diffusion-tensor imaging values during a period of signal changes consistent with myelination. 
  • Pulling geometry-induced errors in single molecule force spectroscopy measurements. 
  • Quantitative DTI metrics in a canine model of Krabbe disease: comparisons versus age-matched controls across multiple ages. 
  • Quantitative analysis of diffusion tensor imaging data in serial assessment of Krabbe disease. 
  • Quantitative diffusion tensor imaging analysis does not distinguish pediatric canines with mucopolysaccharidosis I from control canines. 
  • Quantitative magnetic susceptibility of the developing mouse brain reveals microstructural changes in the white matter. 
  • Reconstruction of porous material geometry by stochastic optimization based on bulk NMR measurements of the dipolar field. 
  • Redefinition of multiple sclerosis plaque size using diffusion tensor MRI. 
  • Reduced white matter integrity and verbal fluency impairment in young adults with bipolar disorder: a diffusion tensor imaging study. 
  • Regional electric field induced by electroconvulsive therapy in a realistic finite element head model: influence of white matter anisotropic conductivity. 
  • Regional electric field induced by electroconvulsive therapy: a finite element simulation study. 
  • Regional material property alterations in porcine femoral arteries with atheroma development. 
  • Registered (1)H and (3)He magnetic resonance microscopy of the lung. 
  • Repeatability of quantitative metrics derived from MR diffusion tractography in paediatric patients with epilepsy. 
  • Role of aerobic fitness and aging on cerebral white matter integrity. 
  • Segmentation of the canine corpus callosum using diffusion-tensor imaging tractography. 
  • Self-assembly of ordered nanowires in biological suspensions of single-wall carbon nanotubes. 
  • Semi-automated 3D segmentation of major tracts in the rat brain: comparing DTI with standard histological methods. 
  • Stiffness characterization of anisotropic trabecular meshwork. 
  • Structural alterations within cerebellar circuitry are associated with general liability for common mental disorders. 
  • Structural anisotropy and internal magnetic fields in trabecular bone: coupling solution and solid dipolar interactions. 
  • Structural connectivity of the frontal lobe in children with drug-resistant partial epilepsy. 
  • Structural integrity of the uncinate fasciculus and resting state functional connectivity of the ventral prefrontal cortex in late life depression. 
  • Study of unipolar electrogram morphology in a computer model of atrial fibrillation. 
  • Susceptibility tensor imaging. 
  • Tailoring anisotropic wetting properties on submicrometer-scale periodic grooved surfaces. 
  • The architecture of cross-hemispheric communication in the aging brain: linking behavior to functional and structural connectivity. 
  • The functional relevance of diffusion tensor imaging in comparison to conventional MRI in patients with cervical compressive myelopathy. 
  • The micromechanical environment of intervertebral disc cells determined by a finite deformation, anisotropic, and biphasic finite element model. 
  • The micromechanical environment of intervertebral disc cells: effect of matrix anisotropy and cell geometry predicted by a linear model. 
  • The study of wall deformation and flow distribution with transmural pressure by three-dimensional model of thoracic aorta wall. 
  • The superior longitudinal fasciculus in typically developing children and adolescents: diffusion tensor imaging and neuropsychological correlates. 
  • Titanium with aligned, elongated pores for orthopedic tissue engineering applications. 
  • Topology links RNA secondary structure with global conformation, dynamics, and adaptation. 
  • Towards Raman optical activity calculations of large molecules. 
  • Uncinate fasciculus fractional anisotropy correlates with typical use of reappraisal in women but not men. 
  • Visual experience promotes the isotropic representation of orientation preference. 
  • White matter abnormalities and neurocognitive deficits associated with the passivity phenomenon in schizophrenia: a diffusion tensor imaging study. 
  • iDQC anisotropy map imaging for tumor tissue characterization in vivo. 
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  Keywords of People

  • Bennett, Vann, George B. Geller Professor for Research in Molecular Biology in the School of Medicine, Duke Cancer Institute
  • Bursac, Nenad, Professor of Biomedical Engineering, Biomedical Engineering
  • Henriquez, Craig S., Professor of Biomedical Engineering, Pratt School of Engineering
  • Johnson, G. Allan, Charles E. Putman University Professor of Radiology, Physics
  • Neu, Wanda Krassowska, Professor of Biomedical Engineering, Biomedical Engineering
  • Pormann, John, Senior Manager, IT, Duke University Libraries