Itoh R, Melhem E R, Folkers P J
Department of Radiology and Radiological Sciences, The Johns Hopkins Medical Institutions, Baltimore, MD, USA.
AJNR Am J Neuroradiol. 2000 Oct;21(9):1591-5.
Diffusion-tensor MR imaging of the brain is an objective method that can measure diffusion of water in tissue noninvasively. Five adult volunteers participated in this study that was performed to evaluate the potential of gradient- and spin-echo readout for diffusion-tensor imaging by comparing it with single-shot spin-echo echo-planar imaging. Gradient- and spin-echo readout provides comparable measures of water diffusion to single-shot spin-echo echo-planar readout with significantly less geometrical distortion at the expense of a longer imaging time.
脑部扩散张量磁共振成像（Diffusion-tensor MR imaging）是一种客观方法，可无创测量组织中的水分子扩散。五名成年志愿者参与了本研究，该研究旨在通过与单次激发自旋回波平面回波成像（single-shot spin-echo echo-planar imaging）进行比较，评估梯度回波和自旋回波读出方式在扩散张量成像中的潜力。梯度回波和自旋回波读出方式提供的水分子扩散测量结果与单次激发自旋回波平面回波读出方式相当，几何变形显著更小，但成像时间更长。
