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- W2377884063 abstract "Objective:To search for the optimal scanning parameters for MR diffusion tensor imaging in the study of the optic nerve.Methods:Images were acquired with a 1.5 T GE Signa Twin MR scanner with 8-channel head phased array coil using a single-shot zonal oblique multislice echoplanar imaging(ZOOM-EPI).30 cases of healthy volunteers who were divided three groups randomly were studied with using different diffusion-sensitive gradient directions,b value,and slice thickness/interval.Primary data of diffusion tensor imaging were processed off-line in the personal computer,with the post-processing software of the Volume-one 1.72.Results:When the parameters of MR-DTI sequence were 13 directions of diffusion-sensitive gradients,1000 s/mm2 of b value and 3/0 mm of thickness/interval paralleling optic nerve scanning,the high quality DT images of directionally encoded color(DEC) maps and fractional anisotropy(FA) maps were acquired with high MR signal-to-noise ratio(SNR) and minimized partial volume effects and motion artifacts such as distortion or deformation of optic nerve.Conclusion:The optimal parameters of optic nerve for MR diffusion tensor imaging(MR-DTI) scanning are established preliminarily in the study.The DTI maps of optic nerve could satisfy the needs of clinical researching and applications." @default.
- W2377884063 created "2016-06-24" @default.
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- W2377884063 date "2009-01-01" @default.
- W2377884063 modified "2023-09-23" @default.
- W2377884063 title "The preliminary study on scanning parameters of MR diffusion tensor imaging in normal optic nerve" @default.
- W2377884063 hasPublicationYear "2009" @default.
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