Reef V B, Collatos C
Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, New Bolton Center, Kennett Square 19348.
Am J Vet Res. 1988 Dec;49(12):2143-6.
The umbilical arteries, urachus, and umbilical vein were scanned ultrasonographically in 13 clinically normal foals that ranged in age from 6 hours to 4 weeks. Sonograms were obtained using a 7.5-MHz sector scanner transducer placed across the midline of the ventral portion of the foal's abdominal wall. The umbilical vein was scanned from the umbilical stalk to its entrance into the hepatic parenchyma. The mean (+/- SD) diameter of the umbilical vein was 0.61 +/- 0.20 cm immediately cranial to the umbilical stalk, 0.52 +/- 0.19 cm midway between the umbilicus and liver, and 0.6 +/- 0.19 cm at the liver. The urachus and umbilical arteries were scanned from the umbilical stalk to the apex of the urinary bladder and had a mean total diameter of 1.75 +/- 0.37 cm at the bladder apex. The umbilical arteries also were scanned along either side of the bladder and had a mean diameter of 0.85 +/- 0.21 cm. These measurements and the ultrasonographic appearance of the internal umbilical structures from clinically normal foals can be used as references to diagnose abnormalities of the umbilical structures in neonatal foals.
对13匹临床健康、年龄从6小时至4周的幼驹进行了脐动脉、脐尿管和脐静脉的超声扫描。使用一台7.5兆赫扇形扫描仪探头，横跨幼驹腹壁腹侧中线进行扫查，获取超声图像。从脐蒂至脐静脉进入肝实质处对其进行扫描。脐蒂头侧紧邻处脐静脉的平均（±标准差）直径为0.61±0.20厘米，脐与肝脏之间中点处为0.52±0.19厘米，在肝脏处为0.6±0.19厘米。从脐蒂至膀胱尖对脐尿管和脐动脉进行扫描，膀胱尖处其平均总直径为1.75±0.37厘米。还在膀胱两侧对脐动脉进行扫描，其平均直径为0.85±0.21厘米。临床健康幼驹脐部内部结构的这些测量值及超声表现可作为诊断新生幼驹脐部结构异常的参考。
