Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
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The purposes of this study were to evaluate the accuracy of the ultrasonographic measurements used during diagnosis of hypertrophic pyloric stenosis (HPS), to examine the relationship between the palpability and the morphologic features of the pyloric mass, and to show the morphologic resolution of the pylorus after pyloromyotomy. ⋯ The preoperative ultrasonographic measurements of the pylorus reliably evaluated the pyloric muscle thickness and diameter in HPS. The actual pyloric diameter correlated with the palpability of the pyloric mass. The morphologic resolution of the pylorus after surgery did not correlate with the prompt improvement of symptoms.