Magnetic resonance imaging (MRI), with and without contrast, has become the standard metric of finding and following lesions and axonal loss. The traditional methods of treatment include medications, diet, exercises, and neurological supportive care. The medications are limitedly effective, and often ...
The cortical surface was extracted from the anatomical MRI of a single 2-year-old, using Freesurfer (http://surfer.nmr.mgh.harvard.edu/). We simulated the fields from an array of dipoles (26,988 in total) that were distributed over the cortical surface with locally normal orientations. For...
For deep gray matter structures, the phase contrast is mainly determined by the amount of iron [13]. As shown in many studies, the amount of iron may be related to many neurological diseases as well as tissue changes with aging [15,19–21]. For the veins in the brain, it is the lev...
2f,j). Reduced clearance was also observed in mice that were sleeping, compared with mice that were kept awake (Fig. 2g,k and Extended Data Fig. 7). By contrast, the diffusion coefficients, reflecting the rate of spread in the brain parenchyma and the time to reach the peak in the ...
We used morphometric similarity networks (MSNs) to model inter-regional correlations of multiple macro- and micro-structural multi-contrast MRI variables in a single individual. This approach was originally devised to study how human cortical networks underpin individual differences in psychological ...
In contrast, neither length nor weight of all infants were smaller than the CDC averages of healthy infants. Clinical and MRI Characteristics of Longitudinal and Partial HC Data Groups To further determine whether those infants who had their head frequently measured by their pediatrician differed ...
a pixel-level semantic segmentation method using 3D-UNet is proposed to realize the automatic segmentation of the brain hippocampus from MRI results. Methods: Two hundred three-dimensional T1-weighted (3D-T1) nongadolinium contrast-enhanced magnetic resonance (MR) images were acquired at Hangzhou Canc...
Kim etal22 assessed the OCD brain using voxel-basedmeans and analyzed MRI studies of 25 patients with no correction for multiplecomparisons. They identified brain regions showing altered gray matter "density"(direct volume testing was not possible until recent technical improvements)and found ...
a, Diffusion-weighted MRI at variousbvalues. Comparing images acquired with NexGen 7 T gradient coil performance in the top row to conventional gradient coil performance (80 mT m−1, 200 T m−1 s−1) in the bottom row.b, Improvement in color principal fiber orientation ...
L. et al. Mapping the microstructure and striae of the human olfactory tract with diffusion MRI. J. Neurosci. 42, 58–68 (2021). Zald, D. H. & Pardo, J. V. Emotion, olfaction, and the human amygdala: amygdala activation during aversive olfactory stimulation. Proc. Natl Acad. Sci. ...