Sonographic diagnosis of infantile hypertrophic pyloric stenosis- use of simultaneous grey-scale and colour doppler examination

ABSTRACT

To evaluate the accuracy of Ultrasound in the diagnosis of Infantile Hypertrophic Pyloric stenosis, especially with simultaneous use of grey-scale and colour Doppler examination of pylorus. Fifty two infants with suspected Infantile Hypertrophic Pyloric stenosis [IHPS] were evaluated with grey-scale and colour Doppler examination. The sonographic findings were categorized as positive IHPS, negative IHPS and equivocal cases. Positive sonographic findings in 21 infants [40%] were confirmed at surgery. Negative sonographic findings in 27 infants [52%] were followed by ward chart reviews. Sensitivity, Sepcificity and Accuracy of grey-scale and colour Doppler examination for the diagnosis of IHPS were 1005. Sonography is the method of choice for the diagnosis of IHPS. Simultaneous grey-scale and colour Doppler examination of pylorus for suspected IHPS is more accurate than simple grey-scale sonography