1Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
2Radiology department, Akbar children Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
3Radiology department, Akbar children Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
4Pediatric surgery department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
چکیده
Background: Early diagnosis of intestinal obstruction is critical for preventing subsequent complications. In this study, we compare the accuracy of plain abdominal X-ray and ultrasound imaging among children with intestinal obstruction, in terms of the diagnosis of obstruction and its underlying causes. Methods: This analytical cross-sectional study was performed at Akbar Children’s Hospital of Mashhad, Iran, in 2019-2021. Children with clinical manifestations of bowel obstruction underwent abdominal ultrasound examination and plain abdominal X-ray imaging, and the diagnostic findings were compared with the final definite diagnosis. Radiologic signs of obstruction were bubble signs in obstructions until the jejunum, and sausage-shaped air-filled bowel in obstructions of the rest of the bowel. The ultrasound signs were fluid-filled dilated loops, tubular or sausage-shaped dilated bowels, parallel valvulae conniventes (stack of coins), the to-and-fro motion, and the cause of the obstruction. Results: Overall, 60 children with a mean age of 3.05 ± 0.87 years were studied. Post-operative adhesion was the most common cause of obstruction (28%). Plain radiography revealed a normal pattern in 15% of cases, bubble sign and/or decreased abdominal gas pattern in 15% of patients (high-level obstruction), and sausage-shaped pattern of low-level obstruction in 70% of cases, with 72% accuracy. The sonographic signs of bowel obstruction were seen in all patients, with 96.6% accuracy. The cause of obstruction could be determined in 91% of patients, with 91.6% accuracy. Conclusion: Plain abdominal X-ray had a normal pattern in 15% of bowel obstructions while sonography revealed all obstructions with 91.6% accuracy. Therefore, ultrasound imaging can be used as the preferred imaging modality to diagnose gastrointestinal tract obstructions.
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