2022
Automation of generative adversarial network-based synthetic data-augmentation for maximizing the diagnostic performance with paranasal imaging
Kong H, Kim J, Moon H, Park H, Kim J, Lim R, Woo J, Fakhri G, Kim D, Kim S. Automation of generative adversarial network-based synthetic data-augmentation for maximizing the diagnostic performance with paranasal imaging. Scientific Reports 2022, 12: 18118. PMID: 36302815, PMCID: PMC9613909, DOI: 10.1038/s41598-022-22222-z.Peer-Reviewed Original ResearchConceptsSynthetic data augmentationData augmentationLack of training dataConventional data augmentationDeep learning methodsTraining dataLearning methodsPipeline approachAlgorithm trainingGraphical dataAutomationWaters' view radiographsModel performanceAutomated pipelinePerformancePerformance parametersAlgorithmDatasetAugmentationDataMethodPipelineRulesIndustrial workers
2018
Artificial intelligence-assisted interpretation of bone age radiographs improves accuracy and decreases variability
Tajmir S, Lee H, Shailam R, Gale H, Nguyen J, Westra S, Lim R, Yune S, Gee M, Do S. Artificial intelligence-assisted interpretation of bone age radiographs improves accuracy and decreases variability. Skeletal Radiology 2018, 48: 275-283. PMID: 30069585, DOI: 10.1007/s00256-018-3033-2.Peer-Reviewed Original ResearchConceptsBone age assessmentAutomated artificial intelligenceAI assistanceBone age radiographsConvolutional neural networkDeep learning algorithmsRoot mean square errorMean square errorPediatric radiologistsUtilization of AILearning algorithmsNeural networkArtificial intelligenceIntraclass correlation coefficientImproved performancePooled cohortRadiologist interpretationImaging studiesInter-rater variationAccuracyMetabolic disordersIncreased accuracyRadiologistsAge accuracyMeasures of accuracy
2015
Simplifying 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
2013
Simultaneous 99mTc‐MDP/123I‐MIBG tumor imaging using SPECT‐CT: Phantom and constructed patient studies
Rakvongthai Y, Fakhri G, Lim R, Bonab A, Ouyang J. Simultaneous 99mTc‐MDP/123I‐MIBG tumor imaging using SPECT‐CT: Phantom and constructed patient studies. Medical Physics 2013, 40: 102506. PMID: 24089927, PMCID: PMC3785531, DOI: 10.1118/1.4820977.Peer-Reviewed Original ResearchConceptsScatter correctionDual-radionuclideContrast recoveryPhantom studyAnthropomorphic torso phantomPatient studiesTumor uptakeTumor imagingSPECT projectionsTorso phantomMonte-CarloPhantom dataPhantomIterative reconstructionOSEMProjection dataDR dataIncrease patient throughputNoise realizationsSPECT-CTImage reconstructionClinical studiesTumorTumor projectionPoisson noise