title: Ultrasonography of hydronephrosis in the newborn: a practical review.
abstract: Widespread use of fetal ultrasonography is accompanied by more frequent detection of antenatal hydronephrosis. Therefore, sonographic evaluation of neonates with a history of antenatal hydronephrosis is becoming more widespread. As an initial postnatal non-invasive imaging modality, ultrasonography is used to screen for persistence of hydronephrosis, determine the level and severity of obstruction, and contribute to appropriate diagnosis and treatment. This review aims to provide a practical overview of the sonographic evaluation of neonatal hydronephrosis and to describe the sonographic findings of conditions associated with hydronephrosis in the newborn.
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Korea.
authors.forename: Young Hun
authors.identifier: 0000-0002-1842-9062
authors.initials: YH
authors.lastname: Choi
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Korea.|Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea.
authors.forename: Jung-Eun
authors.identifier: 0000-0003-1479-2064
authors.initials: JE
authors.lastname: Cheon
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Korea.|Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea.
authors.forename: Woo Sun
authors.identifier: 0000-0003-2184-1311
authors.initials: WS
authors.lastname: Kim
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Korea.|Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea.
authors.forename: In-One
authors.identifier: 0000-0001-5800-3536
authors.initials: IO
authors.lastname: Kim
keywords: Hydronephrosis; Infant, newborn; Ultrasonography