3D magnetic resonance microscopy of the ex vivo retina.

3D magnetic resonance microscopy of the ex vivo retina.
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DOI:
10.1002/mrm.23082
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发表时间:
2012-04
影响因子:
3.3
通讯作者:
Duong, Timothy Q.
Duong, Timothy Q.
中科院分区:
医学3区
文献类型:
--
作者:
De La Garza, Bryan H.;Muir, Eric R.;Shih, Yen-Yu I.;Duong, Timothy Q.

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3D-MR microscopy at 11.7T and 20×20×57 μm resolution was performed on formalin-fixed rat eyes with: (I) no contrast agent and (II) Gadodiamide (Omniscan®) added to the fixative. Group I data showed generally poor contrast among layers. Group II data showed markedly better lamina-specific contrast with the nerve fiber + ganglion cell layer and inner nuclear layer being hypointense, and the inner plexiform, outer plexiform, outer nuclear layer, and the segments being hyperintense. The signal-to-noise ratio in Group II was higher than Group I, consistent with Gadodiamide acting as a T1-contrast agent. All major retinal layers were assigned and their thicknesses quantified with corroboration by histology. MR microscopy allows non-destructive examination of valuable specimens and could have applications in disease and in vivo.
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