Abstract：Objective To evaluate the effectiveness of application of ultrasonography (US) in diagnosis of infantile hypertrophic pyloric stenosis (IHPS). Methods Taking PMT (Pyloric Muscle Thickness) ≥4.0 mm and PCL (Pyloric Channel Length) ≥16.0 mm as the diagnostic criteria, the ultrasonographic findings of 691 children with clinically-suspected IHPS were analyzed retrospectively. Results The sensitivity, specificity and diagnostic accordance rate of US for IHPS were 96% (254/265), 100% (426/426) and 98% (680/691) respectively. Among 254 patients with true-positive ultrasonographic findings, there were 21 patients with repeated ultrasound scans, accounting for 8% (21/254). They were revealed negative with PMT ranging from 1.7 mm to 3.8 mm on first ultrasound scan and then were found positive with PMT ranging from 4.0 mm to 6.0 mm on the second ultrasound scan. The rate of pyloric muscle hypertrophy was (0.21±0.19) mm/d, ranging from 0.07 mm/d to 0.83 mm/d. Conclusion US served as an effective and reliable imaging method for diagnosis of IHPS. The negative pyloric ultrasonographic findings might be due to the fact that the patient was in the very initial stages of development of IHPS. In view of this, a repeated ultrasound scan was necessary to be performed so as to avoid the missed diagnosis of patients with IHPS.
王峥嵘，刘琴，苏英姿，张丽娥，张薇薇，任红雁. 超声在诊断婴儿肥厚性幽门狭窄中的应用价值[J]. 中国医疗设备, 2015, 30(12): 70-72.
WANG Zheng-rong, LIU Qin, SU Ying-zi, ZHANG Li-e, ZHANG Wei-wei, REN Hong-yan. Effectiveness of Application of Ultrasonography in Diagnosis of Infantile Hypertrophic Pyloric Stenosis. China Medical Devices, 2015, 30(12): 70-72.
