在冠状位磁共振成像上测量正常视交叉。
Measurement of the normal optic chiasm on coronal MR images.
作者信息
Wagner A L, Murtagh F R, Hazlett K S, Arrington J A
机构信息
Department of Radiology, University of South Florida, College of Medicine, Tampa 33612, USA.
出版信息
AJNR Am J Neuroradiol. 1997 Apr;18(4):723-6.
PURPOSE
To develop an objective method for measuring the optic chiasm and to document its normal range in size.
METHODS
Measurements of the height and area of the optic chiasm, made on coronal T1-weighted MR images with the use of commercially available region-of-interest software, were obtained in 114 healthy subjects who had a total of 123 MR studies. A normal range and standard deviation were calculated, and the information was broken down by age and sex.
RESULTS
The mean area of the optic chiasm was 43.7 mm2, with a standard deviation of 5.21. The mean width was 14.0 mm, with a standard deviation of 1.68.
CONCLUSION
The area and width of the optic chiasm can be measured with the use of commercially available software, which allows an objective estimate of the chiasm's size. Knowledge of the normal size range of the optic chiasm can be helpful in the early detection of some disorders.
目的
开发一种测量视交叉的客观方法，并记录其正常大小范围。
方法
使用商用感兴趣区域软件，在114名健康受试者的123次磁共振成像（MR）研究中，对冠状位T1加权MR图像上的视交叉高度和面积进行测量。计算正常范围和标准差，并按年龄和性别进行信息分类。
结果
视交叉的平均面积为43.7平方毫米，标准差为5.21。平均宽度为14.0毫米，标准差为1.68。
结论
视交叉的面积和宽度可以使用商用软件进行测量，这有助于对视交叉大小进行客观估计。了解视交叉的正常大小范围有助于早期发现某些疾病。
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