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目的探讨高频超声对先天性肥厚性幽门狭窄(CHPS)的诊断价值。方法利用高频超声探头对37例CHPS婴幼儿患者进行超声检查,观察患者幽门肌层厚度、幽门管长度,检查结果与40例正常同龄婴幼儿对比。结果 CHPS患儿幽门肌层厚度为4.2～5.7 mm,幽门管长度为14.3～22.4 mm,与对照组比较,均有统计学差别(P<0.05)。CHPS超声图像非常典型:沿幽门管横切面扫查,图像呈“环状征”;沿幽门管纵切面扫查,图像呈“子宫颈”征;幽门腔呈线样稍强回声;胃腔多见大量潴留物,通过受阻,可见逆蠕动。结论高频超声能对CHPS作出准确诊断。
Objective To investigate the diagnostic value of high frequency ultrasound in congenital hypertrophic pyloric stenosis (CHPS). Methods Thirty-seven CHPS infants and young children were examined with high-frequency ultrasound sonography. The thickness of pyloric muscle and the length of pyloric duct were observed. The results were compared with those of 40 normal infants. Results The thickness of pyloric myometrium in children with CHPS was 4.2-5.7 mm and the length of pyloric tube was 14.3-22.4 mm. There was a significant difference (P <0.05) between the control group and the control group. CHPS ultrasound images are very typical: along the transverse section of the pylorus scan, the image was “ring sign”; along the longitudinal section of the pylorus scan, the image was “cervical” sign; pyloric cavity slightly linear echo ; Gastric cavity see a large number of retention material, through obstruction, showing anti-peristalsis. Conclusion High-frequency ultrasound can accurately diagnose CHPS.