2020
Corticosteroids to prevent kidney scarring in children with a febrile urinary tract infection: a randomized trial
Shaikh N, Shope T, Hoberman A, Muniz G, Bhatnagar S, Nowalk A, Hickey R, Michaels M, Kearney D, Rockette H, Charron M, Lim R, Majd M, Shalaby-Rana E, Kurs-Lasky M, Cohen D, Wald E, Lockhart G, Pohl H, Martin J. Corticosteroids to prevent kidney scarring in children with a febrile urinary tract infection: a randomized trial. Pediatric Nephrology 2020, 35: 2113-2120. PMID: 32556960, PMCID: PMC7529851, DOI: 10.1007/s00467-020-04622-3.Peer-Reviewed Original ResearchConceptsFebrile urinary tract infectionUrinary tract infectionAdjuvant systemic corticosteroidsKidney scarringSystemic corticosteroidsTract infectionsInitiate urinary tract infectionReducing kidney scarringEfficacy of corticosteroidsMethodsChildren aged 2Absolute risk reductionRandomized to corticosteroidsMonths to 6Statistically significant differencePlacebo groupAdjuvant corticosteroidsCorticosteroidsKidney scansPlaceboSignificant differenceAged 2ScarsKidneyInfectionMonthsReducing Radiation Dose and Contrast Medium Volume With Application of Dual-Energy CT in Children and Young Adults.
Tabari A, Gee M, Singh R, Lim R, Nimkin K, Primak A, Schmidt B, Kalra M. Reducing Radiation Dose and Contrast Medium Volume With Application of Dual-Energy CT in Children and Young Adults. American Journal Of Roentgenology 2020, 214: 1199-1205. PMID: 32286868, DOI: 10.2214/ajr.19.22231.Peer-Reviewed Original ResearchConceptsSingle-energy CTContrast material volumeDS-DECTDual-energy CTRadiation doseThird-generation dual-source CT scannerDual-source dual-energy CTDual-source CT scannerContrast volume reductionCT dose descriptorsMean patient ageApplications of dual-energy CTContrast medium volumeWeight-matched patientsYoung adultsReduce radiation doseLow radiation doseCohen's kappa testConsecutive childrenPatient ageRadiological findingsDose descriptorsPatient demographicsRetrospective studyKappa test
2019
Clinical significance of incidentally discovered renal cysts in pediatric patients
Botwin A, Phewplung T, Wu K, Lim R, Traum A, Gee M. Clinical significance of incidentally discovered renal cysts in pediatric patients. Abdominal Radiology 2019, 44: 2835-2840. PMID: 30972430, DOI: 10.1007/s00261-019-02017-z.Peer-Reviewed Original ResearchConceptsAutosomal dominant polycystic kidney diseasePediatric patientsRenal cystsFamily historyClinical significanceCyst groupRisk of autosomal dominant polycystic kidney diseaseDiagnosis of autosomal dominant polycystic kidney diseaseAssociated with higher incidenceMethodsA retrospective searchFollow-up imagingDominant polycystic kidney diseaseSearch of radiology reportsMaximum cyst diameterStatistically significant elevationPolycystic kidney diseaseNo malignancyRetrospective search of radiology reportsCyst evaluationBilateral cystsCyst sizeFollow-up studyCyst characteristicsCyst diameterImaging predictors
2015
Review of Ingested and Aspirated Foreign Bodies in Children and Their Clinical Significance for Radiologists
Pugmire B, Lim R, Avery L. Review of Ingested and Aspirated Foreign Bodies in Children and Their Clinical Significance for Radiologists. RadioGraphics 2015, 35: 1528-1538. PMID: 26295734, DOI: 10.1148/rg.2015140287.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsBronchoscopyCausticsChildChild, PreschoolEatingEmergenciesEndoscopy, Digestive SystemEsophagusForeign BodiesGastrointestinal TractGlassHumansInfantIntestinal ObstructionIntestinal PerforationMagnetsMetalsNumismaticsRadiographyRespiratory AspirationRespiratory SystemUnited StatesConceptsAspirated foreign bodyForeign bodyClinical managementClinical significanceIngested foreign bodiesRisk of esophageal injuryImaging appearanceAggressive clinical managementForeign body aspirationExamination of childrenEsophageal injuryBowel perforationFistula formationPrompt recognitionImaging examinationsPediatric populationClinical symptomsComputed tomographyAppropriate treatmentHigh riskPrompt identificationBowel wallRadiologistsGastrointestinal tractClinical implicationsSimplifying size-specific radiation dose estimates in pediatric CT.
Khawaja R, Singh S, Vettiyil B, Lim R, Gee M, Westra S, Kalra M. Simplifying size-specific radiation dose estimates in pediatric CT. American Journal Of Roentgenology 2015, 204: 167-76. PMID: 25539253, DOI: 10.2214/ajr.13.12191.Peer-Reviewed Original ResearchConceptsSize-specific dose estimateStatistically significant correlationDose estimatesBody weightTorso diameterSize-specific doseConsecutive CT examinationsMedian body weightPatient's body weightRadiation dose estimatesSignificant correlationPediatric CTCT examinationsEffective diameterIndividual patientsOverall body weightClinical settingPatientsDoseD(apChildrenAutomated softwareMeasured diameterBodyManual measurements
2014
Dose reduction in pediatric abdominal CT: use of iterative reconstruction techniques across different CT platforms
Khawaja R, Singh S, Otrakji A, Padole A, Lim R, Nimkin K, Westra S, Kalra M, Gee M. Dose reduction in pediatric abdominal CT: use of iterative reconstruction techniques across different CT platforms. Pediatric Radiology 2014, 45: 1046-1055. PMID: 25427434, DOI: 10.1007/s00247-014-3235-2.Peer-Reviewed Original ResearchConceptsIterative reconstruction techniqueSinogram-affirmed iterative reconstructionAdaptive statistical iterative reconstructionModel-based iterative reconstructionPediatric abdominal CTDose reductionIterative reconstructionAbdominal CTAdaptive iterative dose reductionMagnitude of dose reductionIncreased image noiseStatistical iterative reconstructionAIDR 3DReconstruction techniqueCT examinationsCT scanImage noiseReconstruction algorithmClinical settingDosing potentialClinical applicationImage qualityRadiology communityReconstruction principleImage interpretation
2010
Brown adipose tissue 18F-FDG uptake in pediatric PET/CT imaging
Hong T, Shammas A, Charron M, Zukotynski K, Drubach L, Lim R. Brown adipose tissue 18F-FDG uptake in pediatric PET/CT imaging. Pediatric Radiology 2010, 41: 759-768. PMID: 21161205, DOI: 10.1007/s00247-010-1925-y.Peer-Reviewed Original Research
2008
Renal pyramid echogenicity in ureteropelvic junction obstruction: correlation between altered echogenicity and differential renal function
Chavhan G, Daneman A, Moineddin R, Lim R, Langlois V, Traubici J. Renal pyramid echogenicity in ureteropelvic junction obstruction: correlation between altered echogenicity and differential renal function. Pediatric Radiology 2008, 38: 1068. PMID: 18633607, DOI: 10.1007/s00247-008-0943-5.Peer-Reviewed Original ResearchConceptsDifferential renal functionLoss of corticomedullary differentiationUreteropelvic junction obstructionPoor renal functionCorticomedullary differentiationUreteropelvic junctionRenal functionGroup 1Risk ratioObstructed kidneyGroup 2Increased echogenicityGroup 3Technetium-99m mercaptoacetyltriglycineResultsIn group 1Fisher's exact testAbnormal echogenicityObstructive hydronephrosisExact testTechnetium-99Histological changesRenal pyramidsHigh-frequency transducersEchogenicityPatients