海马结构内部结构的磁共振成像表现。
MR appearance of the internal architecture of Ammon's horn.
作者信息
Miller M J, Mark L P, Ho K C, Haughton V M
机构信息
Department of Radiology, Medical College of Wisconsin, Milwaukee 53266, USA.
出版信息
AJNR Am J Neuroradiol. 1996 Jan;17(1):23-6.
PURPOSE
To determine whether the four subdivisions of Ammon's horn and six layers of CA1 seen histologically can be demonstrated with MR imaging.
METHODS
Specimens of cadaver brains were imaged in a 3.0-T MR imager with a 3.0-cm solenoid coil. The specimens were sectioned, stained, and examined histologically. On anatomic sections, the four subdivisions of Ammon's horn and six layers of CA1 were identified. The MR images were then compared with the anatomic sections.
RESULTS
Using geographic characteristics, we identified the four subdivisions of Ammon's horn. In CA1, the six layers could be identified by variations in signal intensity, width, and location.
CONCLUSION
This study suggests that, with MR imaging of sufficiently high resolution, the internal architecture of Ammon's horn may be identified.
目的
确定组织学上所见的海马角的四个亚区和CA1的六层结构能否通过磁共振成像（MR成像）显示出来。
方法
使用3.0厘米螺线管线圈在3.0-T MR成像仪中对尸体脑标本进行成像。将标本切片、染色并进行组织学检查。在解剖切片上，识别出海马角的四个亚区和CA1的六层结构。然后将MR图像与解剖切片进行比较。
结果
利用解剖学特征，我们识别出海马角的四个亚区。在CA1区，可通过信号强度、宽度和位置的变化识别出六层结构。
结论
本研究表明，通过具有足够高分辨率的MR成像，可能识别出海马角的内部结构。
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