Optical density changes in ultrasonographic images of the endometrium and corpus luteum in pregnant and cyclic cows

Authors : Mehmet CENGİZ, Armağan ÇOLAK, Armağan HAYIRLI, Orçun CANNAZİK

Pages : 18-24

View : 19 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Optical density image insert ignore into journalissuearticles values(ODI); analysis, based on the intensity of pixels in digital images, is commonly used in orthopedic medicine. This study was conducted to quantify endometrial and luteal changes in early pregnant and cyclic cows by ODI analysis. Twenty healthy primiparous Simmental cows on days 80?120 postpartum were subjected to ultrasonography and ODI analysis on the days of estrus insert ignore into journalissuearticles values(day 0); and metestrus insert ignore into journalissuearticles values(day 4); as well as 12, 15, 18, and 21 days after insemination. The ODI values of pregnant insert ignore into journalissuearticles values(P); and nonpregnant insert ignore into journalissuearticles values(NP); cows were compared using two-way ANOVA. The P cows tended to have greater endometrial OD values than NP cows insert ignore into journalissuearticles values(772.2 vs. 740.5, P < 0.08);, but their luteal OD values were similar insert ignore into journalissuearticles values(596.0 ± 24);. Both endometrial and luteal OD values varied over time in different patterns in P and NP cows in relation to gestational events until confirmation. In conclusion, preliminary data, especially endometrial OD values on day 15 relative to insemination, could have prognostic merit for a very early detection or confirmation of pregnancy. ODI analysis can be incorporated into ultrasonographic examination. However, more comprehensive experiments are needed to assure the prognostic value of ODI analysis.
Keywords : Optical density, computer assisted image analysis, endometrium, corpus luteum, pregnancy, cow