Diffusion tensor imaging (DTI) is a magnetic resonance imaging technique that allows for the visualization and characterization of the white matter tracts of the brain in vivo. DTI does not assess white matter directly. Rather, it capitalizes on the fact that diffusion is isotropic (equal in all directions) in cerebral spinal fluid and cell bodies but anisotropic (greater in one direction than the other directions) in axons that comprise white matter. It provides quantitative information about the degree and direction of water diffusion within individual units of volume within the magnetic resonance image, and by inference, about the integrity of white matter. Measures from DTI can be applied throughout the brain or to regions of interest. Fiber tract reconstruction, or tractography, creates continuous 3-dimensional tracts by sequentially piecing together estimates of fiber orientation from the direction of diffusion within individual volume units. DTI has increased our understanding of white matter structure and function. DTI shows nonlinear growth of white matter tracts from childhood to adulthood. Delayed maturation of the white matter in the frontal lobes may explain the continued growth of cognitive control into adulthood. Relative to good readers, adults and children who are poor readers have evidence of white matter differences in a specific region of the temporo-parietal lobe, implicating differences in connections among brain regions as a factor in reading disorder. Measures from DTI changed in poor readers who improved their reading skills after intense remediation. DTI documents injury to white matter tracts after prematurity. Measures indicative of white matter injury are associated with motor and cognitive impairment in children born prematurely. Further research on DTI is necessary before it can become a routine clinical procedure.

Heidi M. Feldman

Jason D. Yeatman

Eliana S. Lee

Laura H. F. Barde

Shayna Gaman-Bean

Journal of Developmental & Behavioral Pediatrics

Journal of Developmental & Behavioral Pediatrics (JDBP) is a leading resource for clinicians, teachers, and researchers involved in pediatric healthcare and child development. This important journal covers some of the most challenging issues affecting child development and behavior.

The Journal of Developmental and Behavioral Pediatrics (JDBP) is a vital resource for clinicians, educators, and researchers involved in pediatric healthcare and child development. This important journal addresses some of the most challenging issues affecting child development and behavior.

《Journal of Developmental and Behavioral Pediatrics》是一个重要的资源，专为参与儿童医疗和发展研究的临床医生、教师和研究人员而设。该期刊涵盖了影响儿童发展和行为的一些最具挑战性的问题。

Journal of Developmental and Behavioral Pediatrics

Diffusion Tensor Imaging: A Review for Pediatric Researchers and Clinicians

Diffusion tensor imaging is a magnetic resonance imaging technique that allows for the visualization and characterization of the white matter tracts of the brain in vivo and has increased the understanding of white matter structure and function.

Category	Quartile
医学	3
医学, 行为科学	3
医学, 儿科	3
医学, 心理学发育	4

Diffusion Tensor Imaging: A Review for Pediatric Researchers and Clinicians

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Journal Info

Category	Quartile
PSYCHOLOGY, DEVELOPMENTAL	3