Correlations between ultrasonic images and macro- and microscopic features in the uterine horn of dairy cows

The ultrasonic features of the uterine horn in dairy cows were compared with the macro- and microscopic features to find reliable landmarks for ultrasonography. The uterine horns removed from 16 slaughtered Holstein cows were immersed in water and examined with ultrasonography in cross-section. Then...

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Bibliographic Details
Published in:Journal of Reproduction and Development 2001, Vol.47(1), pp.17-25
Main Authors: Saito, Y. (Tokyo Univ. of Agriculture and Technology, Fuchu (Japan). Faculty of Agriculture), Kamomae, H, Tanaka, T, Machida, N, Kaneda, Y
Format: Article
Language:English
Subjects:
Cows
DAIRY COWS
IMAGERY
Ultrasonic image
ULTRASONICS
Uterine horn
UTERUS
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Summary:The ultrasonic features of the uterine horn in dairy cows were compared with the macro- and microscopic features to find reliable landmarks for ultrasonography. The uterine horns removed from 16 slaughtered Holstein cows were immersed in water and examined with ultrasonography in cross-section. Then these uterine horns were examined macroscopically and microscopically in cross-section. In another part of our experiment, layers in the uterine were removed from the uterine wall under ultrasonic observation and the remaining tissues were examined macroscopically and microscopically. Also a 21-G needle was placed vertically into successive layers of cross-sections of the uterine horn under macroscopic observation and then the tissues were examined ultrasonically to determine where the tip of the needle was. Then a small amount of Indian ink was injected through the needle into each layer and the locations of the ink deposits were determined histologically. The uterine wall was visualized in 5 layers on the ultrasonic images: inner echogenic layer, slightly echogenic elliptical layer, central echogenic layer, slightly echogenic arched layer and outer echogenic layer, from inside to outside. Through macro- and microscopic examinations, it was found that the slightly echogenic elliptical layer corresponded to the circular muscle layer, and the slightly echogenic arched layer corresponded to the longitudinal muscle layer. In the present study, it was demonstrated that the 5 layers imaged by ultrasonography corresponded histologically to the endometrium, myometrium (circular muscle layer, stratum vasculare, longitudinal muscle layer) and perimetrium, from inside to outside, respectively.
ISSN:0916-8818
1348-4400
DOI:10.1262/jrd.47.17