ArticlePediatric radiology2017
Conversion and reliability of two urological grading systems in infants: the Society for Fetal Urology and the urinary tract dilatation classifications system.
Article in Pediatric radiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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13 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.
- Urinary tract dilation classification system for predicting surgical management and urinary tract infection in neonates and young infants: a systematic review and meta-analysis.Pediatric radiology · 2024Pooled it
- Comparison of urinary tract dilation and society for fetal urology classifications in predicting indication and success of pyeloplasty in ureteropelvic junction obstruction.International urology and nephrology · 2025Article
- Area of hydronephrosis is a useful predictive factor of impacted ureteral stones.Urolithiasis · 2024Article
- Stratifying Antenatal Hydronephrosis: Predicting High-Grade VUR Using Ultrasound and Scintigraphy.Diagnostics (Basel, Switzerland) · 2024Article
- Application of the postnatal urinary tract dilation classification system to predict the need for surgical intervention among neonates and young infants.Ultrasonography (Seoul, Korea) · 2023Article
- Postnatal urinary tract dilatation classification: improvement of the accuracy in predicting kidney injury.Pediatric nephrology (Berlin, Germany) · 2022Article
- A New Digital Platform for Collecting Measurement Data from the Novel Imaging Sensors in Urology.Sensors (Basel, Switzerland) · 2022Article
- Comparison of Urinary Tract Dilatation and Society of Fetal Urology systems in the detection of vesicourethral reflux and renal scar.Polish journal of radiology · 2021Article
- Prenatal Diagnosis and Findings in Ureteropelvic Junction Type Hydronephrosis.Frontiers in pediatrics · 2020Review
- Rater reliability of postnatal urinary tract dilation consensus classification.Pediatric radiology · 2018Article
- Assessment of the renal collecting system using a pocket-sized ultrasound device.Journal of medical ultrasonics (2001) · 2018Article
- Urinary tract dilation illustrations: reply to Phelps et al.Pediatric radiology · 2017Article
- Urinary tract dilation illustrations.Pediatric radiology · 2017Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe urinary tract dilation (UTD) classification system was proposed in 2014.
objectiveTo evaluate the correspondence and reliability of two US grading systems for postnatal urinary tract dilatation in infants: the Society for Fetal Urology (SFU) and the UTD systems. MATERIALS AND
methodsWe assessed 180 kidneys in infants younger than 1 year. Four radiologists assessed the kidneys twice using both the SFU system (grades 0 to 4) and the UTD system (grades normal, P1, P2, P3). The SFU system was re-categorized into SFU-A (grades 0, 1-2, 3, 4) and into SFU-B (grades 0-1, 2, 3, 4). The Cohen kappa statistic was used for estimating agreement of both UTD-SFU-A and UTD-SFU-B.
resultsThe Cohen kappa was significantly higher between UTD and SFU-B as compared to the UTD and SFU-A (0.75 vs. 0.50, P < 0.001). Intra-observer agreement was similar for the two grading systems (SFU 0.64-0.88 vs. UTD 0.48-0.92, P = 0.050-0.885). SFU grades 2 and 3 showed fair to moderate inter-observer agreement and corresponding UTD grades P1 and P2 showed moderate to substantial agreement. The overall inter-observer agreement was significantly higher for the UTD system than for the SFU system during the first assessment (95% confidence interval [CI]: right kidney, -0.069 to -0.062; left kidney, -0.048 to -0.043).
conclusionCorrespondence between the systems was poor using a recommended re-categorization (SFU-A). An alternative re-categorization (SFU-B) was found to be more appropriate for establishing correspondence between the systems. Both systems were reliable, with good intra- and inter-observer agreement for the assessment of infant kidneys, but the UTD system had better inter-observer agreement.
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