Evidence map›Paper›PMID 29926146›Full record

ArticlePediatric radiology2018

Rater reliability of postnatal urinary tract dilation consensus classification.

Susan J Back, J Christopher Edgar, Dana A Weiss, Edward R Oliver, Richard D Bellah, Kassa Darge

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Article in Pediatric radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

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6citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Susan J BackDivision of Body Imaging, Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA. backs@email.chop.edu.ORCID 0000-0001-9672-5775
J Christopher EdgarDivision of Body Imaging, Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.
Dana A WeissDivision of Urology, Department of Surgery, Children's Hospital of Philadelphia Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Edward R OliverDivision of Body Imaging, Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.
Richard D BellahDivision of Body Imaging, Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.
Kassa DargeDivision of Body Imaging, Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA multidisciplinary urinary tract dilation (UTD) classification system was published in 2014 to standardize definitions and renal/bladder ultrasound image interpretation.

objectiveTo evaluate intra- and inter-rater reliability of this system on postnatal RBUS. MATERIALS AND

methodsRenal/bladder US of 60 infants (<12 months) with urinary tract dilation were anonymized, retrospectively reviewed and scored twice using the UTD classification system by a pediatric urologist and four pediatric radiologists. Exams included supine and prone images of each kidney. Raters recorded the anterior posterior renal pelvis diameter in each position; and when present calyceal dilation (central and peripheral), ureteral dilation, parenchymal and bladder abnormalities. A UTD score was given to each kidney based on these components.

resultsIntraclass correlation (ICC) of anterior posterior renal pelvis diameter measures was 0.99 (P<0.001). Intra-rater reliability for the anterior posterior renal pelvis diameter of each kidney was high, with ICC >0.95 (P<0.001). Inter-rater kappa values for UTD scores of both kidneys ranged from 0.60 to 0.77 (P <0.001). Intra-rater kappa values for UTD scores of both kidneys ranged from 0.74 to 0.92 (P <0.001). Of the six categories comprising the UTD score, discrepancy between raters was highest for interpretation of central and peripheral calyceal dilation.

conclusionPresent inter- and intra-rater reliability findings were similar to those previously reported for grading systems for urinary tract dilation. Across these studies, kappa values are generally lower than the 0.8 cut-off advocated for medical measures. Here, calyceal dilation commonly determined the kidney UTD score and was also the source of greatest discrepancy between raters. Improving consistency of calyceal dilation interpretation may improve UTD consensus score reliability.

Indexed as

ConsensusDilatation, PathologicFemaleHumansInfantInfant, NewbornMaleReproducibility of ResultsUltrasonographyUrogenital AbnormalitiesHydronephrosisInfantPostnatalReproducibilityUltrasoundUrinary tract dilation

Identifiers

PMID29926146

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.