Showing 6 Abstracts.
Pediatric urolithiasis is an important and increasingly prevalent cause of pediatric morbidity and hospital admission. Ultrasound is the recommended primary imaging modality for suspected urolithiasis in children and this view is endorsed by all of the largest pediatric and urological societies. There is however widespread use of CT as a first line study for abdominal pain in many institutions involved in pediatric care, many of whom are free standing hospitals delivering predominantly adult care. The purpose of this educational review is to outline the state-of-the-art imaging modalities and methods for diagnosing urolithiasis in children and to suggest an imaging algorithm for best practice. Read More
Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016
Authors: Colleran Gabrielle, Callahan Michael, Chow Jeanne
Keywords: Urolithiasis, Ultrasound, Computed Tomography, ALARA, Dose optimized
Fluoroscopic voiding cystourethrography (VCUG) and radionuclide cystography (RNC) are conventional techniques used for the diagnosis of vesicoureteral reflux (VUR) in children. Contrast-enhanced voiding urosonography (ceVUS) is a radiation-free alternative to the traditional VCUG. ceVUS has gained acceptance in Europe, but has not yet been widely adopted in the USA. The purpose of this educational review is to describe our initial experience with ceVUS using the second generation US contrast agent Optison™, with a focus on optimization of examination technique, utility in the depiction of a variety of pathological entities, and a discussion of potential pitfalls. Read More
Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016
Authors: Colleran Gabrielle, Barnewolt Carol, Chow Jeanne, Paltiel Harriet
Keywords: contrast enhanced voiding urosonography, VCUG, ALARA, ultrasound contrast, Optison
Duplicated collecting systems can be associated with vesicoureteral reflux, urinary obstruction, ureteroceles, incontinence, and renal parenchymal scarring which can result in decreased renal function, therefore, early identification by radiologists and clinicians is crucial. The purpose of this educational exhibit is to review the embryology, highlight the imaging manifestations, and discuss the clinical ramifications of duplicated renal collecting systems in the pediatric population. Read More
Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016
Authors: Didier Ryne, Chow Jeanne, Kwatra Neha, Lebowitz Robert
Keywords: Duplication, Urinary tract, Renal
The purpose of this educational exhibit is to review radiography, fluoroscopy, computed tomography (CT), and ultrasound (US) imaging appearance of commonly placed genitourinary catheters. The imaging findings associated with appropriately positioned catheters as well as misplaced and displaced catheters are described. Read More
Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016
Authors: Tulin-silver Sheryl, Padua Horacio, Yu Richard, Chow Jeanne
Keywords: Nephrostomy, Nephroureterostomy, Malecot, Foley catheter, Double-J stent
Nephrolithiasis, once considered an adult condition, is now increasingly prevalent in pediatric populations, leading to flank pain, hydronephrosis, and potential renal failure. Traditional imaging modalities for diagnosing pediatric nephrolithiasis, such as ultrasound and CT, are evolving, with newer protocols (e.g., ultra-low dose CT with tin filtration) being developed. The aim of this study was to design and validate an ex vivo porcine model to simulate pediatric renal stones, providing a substrate for the advancement of imaging techniques in renal stone detection and characterization. Read More
Meeting name: SPR 2025 Annual Meeting , 2025
Authors: Ferrer Valencia Valentina, Chow Jeanne, Zhang Da, Callahan Michael, Kephart Morie, Tsai Andy
Keywords: Abdomen CT, Renal Stones, Ultrasound
To use DCE-MRU to evaluate the physiological differences between duplex kidneys with and without obstructed moieties. Read More
Meeting name: SPR 2023 Annual Meeting & Postgraduate Course , 2023
Authors: Shashi Kumar, Garg Harsha, Kurugol Sila, Stein Deborah, Ferguson Michael, Chavez-yenter Alex, Sarao Karen, Chow Jeanne