Imran Sheikh, Tyagi S P, Kumar Amit, Sharma Shivali
Department of Veterinary Surgery and Radiology, College of Veterinary and Animal Sciences, Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur 176 062, Himachal Pradseh, India.
Vet Med Int. 2011;2011:485031. doi: 10.4061/2011/485031. Epub 2011 May 23.
Omasal impaction is a serious disease problem in cattle in India, but it is difficult to diagnose clinically. Ultrasonography has been proposed for the noninvasive evaluation of omasal disease. The objectives of this study were to compare the in vitro and in vivo ultrasonographic appearance of the omasum and to compare omasal appearance, limits, and size in clinically healthy cows with those in cows having confirmed omasal impaction. A 3.5 MHz curvilinear transducer was used to image and record the appearance of the omasum in vitro in a water bath, and its appearance, dorsal and ventral limits, and size in 10 healthy Indian Jersey/Red Sindhi crossbred cows. The results were compared with the ultrasonographic data collected from 5 cows with omasal impaction, as confirmed at necropsy. On moving the transducer dorsoventrally in each intercostal space and below the costal arch, the wall of omasum could be seen as an echogenic arc-like structure. The difference between mean dorsoventral extents of the normal and impacted omasums was statistically insignificant. These results suggest that ultrasonographic imaging may not be useful in the diagnosis of omasal impaction in Indian crossbred cows, however, additional studies may be warranted.
皱胃阻塞是印度牛群中一个严重的疾病问题，但临床诊断困难。超声检查已被用于对皱胃疾病进行无创评估。本研究的目的是比较皱胃的体外和体内超声图像，并比较临床健康奶牛与确诊为皱胃阻塞的奶牛的皱胃外观、界限和大小。使用3.5兆赫的曲线换能器在水浴中对皱胃进行体外成像和记录其外观，并在10头健康的印度泽西/红信德杂交奶牛中记录其外观、背侧和腹侧界限以及大小。将结果与从5头经尸检确诊为皱胃阻塞的奶牛收集的超声数据进行比较。在每个肋间间隙和肋弓下方背腹移动换能器时，皱胃壁可被视为一个回声弧形结构。正常皱胃和阻塞皱胃的平均背腹范围差异无统计学意义。这些结果表明，超声成像可能对印度杂交奶牛皱胃阻塞的诊断没有帮助，然而，可能需要进行更多的研究。
