PT  - JOURNAL ARTICLE
AU  - M J Miller
AU  - L P Mark
AU  - K C Ho
AU  - V M Haughton
TI  - MR appearance of the internal architecture of Ammon's horn.
DP  - 1996 Jan 01
TA  - American Journal of Neuroradiology
PG  - 23--26
VI  - 17
IP  - 1
4099  - http://www.ajnr.org/content/17/1/23.short
4100  - http://www.ajnr.org/content/17/1/23.full
SO  - Am. J. Neuroradiol.1996 Jan 01; 17
AB  - 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.