MAGNETIC-RESONANCE-IMAGING OF THE HUMAN EYE INVIVO

被引：9

作者：

CHENG, HM

机构：

[1] Howe Laboratory of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston, MA

来源：

OPTOMETRY AND VISION SCIENCE | 1991年 / 68卷 / 12期

关键词：

MAGNETIC RESONANCE IMAGING; HUMAN EYE; MORPHOLOGY; MORPHOMETRY; SUBRETINAL HEMORRHAGE; OCULAR MELANOMA; REFRACTIVE ERROR; NANOPHTHALMOS;

D O I：

10.1097/00006324-199112000-00013

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Because of the broad range of Tl (longitudinal relaxation time), T2 (transverse relaxation time), and proton density of the component tissues in the eye, proton magnetic resonance imaging (MRI) can provide ocular images of high contrast. The use of surface coils further enhances the signal-to-noise (S/N) ratio and shortens the image acquisition time to 1 to 6 min. High-resolution MR images of the eye therefore can be acquired readily and routinely. At present, with conventional spin-echo imaging, the in-plane resolution of MR images can be as high as (but not limited to) 0.3 x 0.3 mm with a 3-mm slice thickness. MRI can be used to detect and differentiate ocular lesions and to determine the ocular shape and measure ocular dimensions such as tissue thickness, curvature, and volume.

引用

页码：976 / 980

页数：5

共 13 条

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