Sentences with phrase «measuring white matter»

DTI has been shown to be a more sensitive method of measuring white matter damage and may provide images that better correlate with cognitive dysfunction.

To measure white matter integrity, researchers used fractional anisotropy (FA), obtained by diffusion tensor imaging (DTI).

Further bolstering this idea, the researchers used an MRI - based method to measure the white matter that connects different brain regions and found that the IFJ is highly connected with both the FFA and PPA.

Magnetic resonance diffusion imaging and computational tractography are the only technologies that enable neuroscientists to measure white matter in the living human brain.

A structural equation modeling investigation of age - related variance in executive function and DTI measured white matter damage

Not exact matches

The researchers then used brain imaging to measure the functionality of peoples» white matter and had them take a series of cognitive tests designed to measure how sharp they were.

White announced in a late March speech that «in order to more fully inform the commission's decision on this matter,» she had directed SEC staff to compile a list of all those options, including, she said, «a uniform fiduciary standard for broker - dealers and investment advisors when dealing with retail customers, and other measures that may be more targeted and achievable in the shorter term.»

«We're measuring such variables as prefrontal cortex volume and white matter integrity.

In healthy white matter, the direction of water movement is fairly uniform and measures high in FA.

Authors examined the association between SVD and AD pathology by looking at magnetic resonance imaging (MRI)- based microbleeds (MB), white matter hyperintensities (WMH) and lacunes (which are measures for SVD) along with certain protein levels in cerebrospinal fluid (CSF) which reflect AD pathophysiology in patients with AD, VaD and healthy control patients.

For the new study, researchers from the University of Pittsburgh Medical Center (UPMC) in Pittsburgh used diffusion tensor imaging (DTI), an MRI technique that measures the integrity of white matter — the brain's signal - transmitting nerve fibers — to see if injuries to the nerves may be the root cause of these post-traumatic depression and anxiety symptoms.

Compared to controls, patients with depression had decreased fractional anisotropy (FA), a measure of the structural integrity of white matter connections, around an area near the deep gray matter of the brain that is strongly associated with the brain's reward circuit.

Software measures the neuron - rich gray matter in the brain's outer cortex, the underlying fibers of the white matter, and the clear fluid that fills the cavities.

To do this they will combine several imaging tools including something called diffusion MRI, which maps the structure of the white matter that insulates the «wires» of the brain, and also resting - state MRI, which measures how brain regions oscillate in unison as a result of shared connections.

• Reduced white matter connectivity (as measured by reduced fractional anisotropy and increased radial diffusivity) for two discrete clusters on the forceps minor of the corpus callosum; and

Among other white matter tracts, the white matter organization of the cingulum tract (as reflected by the level of fractional anisotropy measured with diffusion tensor imaging) was found to be positively associated with IQ.

«It was illuminating to see the association between measures of white matter integrity and important outcomes occurring months to years down the road in our study population.»

Scientists also used brain imaging to measure the functionality of each patient's white matter.

«We retrospectively analyzed the data from the DTI sequence to derive measures of white matter integrity, which we compared to clinical measures and subsequent outcome measures 6 months to 2.5 years after the initial evaluation.»

In the first part of our project, we will test the hypothesis that our imaging system, which combines PET and a new form of MRI that I invented called diffusion basis spectrum imaging (DBSI), can reliably detect and measure the severity of white matter damage and inflammation.

He patented DBSI and published papers demonstrating that it could be used to specifically measure and characterize multiple types of white matter microstructural changes.

Here the authors try combining probing white matter integrity with a MRI measure of whether the brain has shrunk as a result of disease.

Vertex - and atlas - based comparisons in measures of cortical thickness, gyrification and white matter volume between humans and chimpanzees.

Kato T, Murashita J, Kamiya A, Shioiri T, Kato N, Inubushi T. Decreased brain intracellular pH measured by 31P - MRS in bipolar disorder: a confirmation in drug - free patients and correlation with white matter hyperintensity.

Further complicating matters is the authors» choice of how to measure the black - white gap in each grade, which seems to drive much of what they find.

They used a computer model of the head injury victims» brains, and measured their white and gray matter, comparing them to similar brain scans of healthy people.

Main Outcomes and Measures Brain volumes of children's white matter and cortical gray matter, as well as hippocampus and amygdala volumes, obtained using magnetic resonance imaging.

The aims of the study are 1) to investigate differences in the topographic distribution of white matter integrity between adolescents with IAD and healthy controls without IAD, making no a priori assumptions about the location of possible abnormalities, and 2) to determine whether there was any relationship between white matter integrity and neurophysiological measures in IAD subjects.

Positive relationships between white matter microstructure and breastfeeding duration are also exhibited in several brain regions, that are anatomically consistent with observed improvements in cognitive and behavioral performance measures.»