Ultrasound is well suited for examining the pediatric duodenum, given the small size of the patients, the lack of ionizing radiation and high-resolution imaging potential. Technical considerations, normal anatomy, congenital and acquired pathology of the duodenum, and the advantages and limitations of US are discussed and illustrated in this review.
Dumitriu, D. I., Menten, R., & Clapuyt, P. (2016). Ultrasound of the duodenum in children. Pediatric Radiology : roentgenology, nuclear medicine, ultrasonics, CT, MRI, 46(9), 1324-1331. https://doi.org/10.1007/s00247-016-3564-4 (Original work published 2016)