Berlin S C, Goske M J, Obuchowski N, Alexander F, Zepp R C, Goldblum J R, Godec K
Division of Radiology, Cleveland Clinic Children's Hospital, Ohio, USA.
J Ultrasound Med. 1998 Aug;17(8):497-504. doi: 10.7863/jum.1998.17.8.497.
Our purposes were to determine whether sonography can distinguish between obstructed and nonobstructed rats and to compare the diagnostic accuracy of sonography and radiography in the diagnosis of small bowel obstruction. Nonstrangulating small bowel obstruction was created in 19 rats; sham laparotomies were performed in 18 controls. Serial radiographs and sonograms, including duplex Doppler sonography, were obtained. Bowel diameter and bowel wall thickness were evaluated retrospectively. Bowel diameter, bowel wall thickness, and resistive indices increased in the animals with obstruction; controls remained unchanged (P = 0.002). Sonography demonstrated a significantly higher diagnostic accuracy than radiography at 24 hours and beyond (P = 0.023). Ultrasonography is sensitive and more accurate than radiography in diagnosing small bowel obstruction using objective criteria in the animal model.
我们的目的是确定超声检查能否区分梗阻性和非梗阻性大鼠，并比较超声检查和X线摄影在诊断小肠梗阻方面的诊断准确性。对19只大鼠造成非绞窄性小肠梗阻；对18只对照大鼠进行假剖腹手术。获取了包括双功多普勒超声检查在内的系列X线片和超声图像。回顾性评估肠直径和肠壁厚度。梗阻动物的肠直径、肠壁厚度和阻力指数增加；对照组保持不变（P = 0.002）。在24小时及以后，超声检查的诊断准确性显著高于X线摄影（P = 0.023）。在动物模型中，使用客观标准时，超声检查在诊断小肠梗阻方面比X线摄影更敏感、更准确。
