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| 1 | Machine learning models compared to existing criteria for noninvasive prediction of endoscopic retrograde cholangiopancreatography-confirmed choledocholithiasis显示文摘Background and aims:Noninvasive predictors of choledocholithiasis have generally exhibited marginal performance characteristics.We aimed to identify noninvasive independent predictors of endoscopic retrograde cholangiopancreatography(ERCP)-confirmed choledocholithiasis and accordingly developed predictive machine learning models(MLMs).Methods:Clinical data of consecutive patients undergoing first-ever ERCP for suspected chol-edocholithiasis from 2015 to 2019 were abstracted from a prospectively-maintained database.Multiple logistic regression was used to identify predictors of ERCP-confirmed choledocholithiasis.MLMs were then trained to predict ERCP-confirmed choledocholithiasis using pre-ERCP ultrasound(US)imaging only as well as using all available noninvasive imaging(US,computed tomography,and/or magnetic reso-nance cholangiopancreatography).The diagnostic performance of American Society for Gastrointestinal Endoscopy(ASGE)“high-likelihood”criteria was compared to MLMs.Results:We identified 270 patients(mean age 46 years,62.2%female,73.7%Hispanic/Latino,59%with noninvasive imaging positive for choledocholithiasis)with native papilla who underwent ERCP for suspected choledocholithiasis,of whom 230(85.2%)were found to have ERCP-confirmed chol-edocholithiasis.Logistic regression identified choledocholithiasis on noninvasive imaging(odds ratio(OR)¼3.045,P¼0.004)and common bile duct(CBD)diameter on noninvasive imaging(OR¼1.157,P¼0.011)as predictors of ERCP-confirmed choledocholithiasis.Among the various MLMs trained,the random forest-based MLM performed best;sensitivity was 61.4%and 77.3%and specificity was 100%and 75.0%,using US-only and using all available imaging,respectively.ASGE high-likelihood criteria demonstrated sensitivity of 90.9%and specificity of 25.0%;using cut-points achieving this specificity,MLMs achieved sensitivity up to 97.7%.Conclusions:MLMs using age,sex,race/ethnicity,presence of diabetes,fever,body mass index(BMI),total bilirubin,maximum CBD diameter,and choledocholithiasis on pre-ERCP noninvasive imaging predict ERCP-confirmed choledocholithiasis with good sensitivity and specificity and outperform the ASGE criteria for patients with suspected choledocholithiasis. | Camellia Dalai John M Azizian Harry Trieu Anand Rajan Formosa C Chen Tien Dong Simon W Beaven James H.Tabibian | 2021 | Liver Research2021，5，4： | 3 |
| 2 | On the parameter extraction of a five-parameter double-diode model of photovoltaic cells and modules显示文摘 | Hejri M Mokhtari H Azizian M R | 2014 | IEEE Journal of Photovoltaics2014，，4： | 1 |
| 3 | Adsorption of methyl violet onto granular activated carbon: equilibrium, kinetics and modeling 显示文摘 | AZIZIAN S HAERIFAR M BASHIRI H | | Chem Eng J0，146，1： | 1 |
| 4 | Environmental impact of highway construction and repair materials on surface and ground waters 显示文摘 | AZIZIAN M F NELSON P O THAYUMANAVAN P | 2003 | Waste Management2003，23，： | 1 |
| 5 | Monitoring abundance and expression of 'Dehalococcoides' species chloroethene-reductive dehalogenases in a tetrachloroethene-dechlorinating flow column显示文摘 | Behrens S Azizian M F McMurdie P J | 2008 | Appl Environ Microbiol2008，74，18： | 1 |
| 6 | Micro- wave assisted preparation of efficient activated carbon from grapevine rhytidome for the removal of methyl violet from a- queous solution显示文摘 | HEJAZIFAR M AZIZIAN S SARIKHANI H etal | 2011 | Journal of Analytical and Applied Pyroly- sis2011，92，1： | 1 |
| 7 | Adsorption of methyl violet onto granular activated carbon: Equilibrium, kinetics and modeling 显示文摘 | AZIZIAN S HAERYFAR M BASHIRI H | 2009 | ChemEngJ2009，146，1： | 1 |
| 8 | Beware misleading cues:Perceptual similarity modulates the N2/P3 complex显示文摘 | AZIZIAN A FREITAS A L PARVAZ M A | | 0，，： | 1 |
| 9 | On the parameter extraction of five-earameter double-diode modelof photovoltaic cells and modules 显示文摘 | HEJRI M MOKHTARI H AZIZIAN A R | 2014 | IEEE Journal of Photovoltaic Cells and Models2014，4，3： | 1 |
| 10 | Autonomous image-guided ro- bot-assisted active catheter insertion 显示文摘 | JAYENDER J AZIZIAN M | 2008 | IEEE Transac- tions on Robotics2008，24，4： | 1 |
| 11 | The taxonomic position of Petiniotia purpurascens (Brassicaceae) :A phenetic analysis显示文摘 | Sonboli A Azizian D Sheidai M | 2005 | Edinburgh Journal of Botany2005，62，3： | 1 |
| 12 | Visual servoing in medical robotics: a survey, Part I1: tomo- graphicimaging modalities-techniques and applications显示文摘 | Azizian M Najmaei N Khoshnam M Patel R | 2015 | The International Journal of Medical Robotics and Com- puter Assisted Surgery2015，11，1： | 1 |
| 13 | autonomous image-guided robot-assisted active catheter insertion显示文摘 | Jayender J Azizian M Patel RV | 2008 | IEEE transactions onrobotics2008，24，4： | 1 |
| 14 | Visual servoing in medical robotics: a survey, Part I: endoscopic and direct vision imaging-techniques and applications显示文摘 | Azizian M Khoshnam M Najmaei N Patel R | 2014 | lrhe International Journal of Medical Robotics and Com- puter Assisted Surgery2014，10，3： | 1 |
| 15 | Beware misleading cues: Perceptual similarity modulates the N2/P3 complex 显示文摘 | Azizian A Freitas L Parvaz M | 2006 | Psychophysiology2006，43，12： | 1 |
| 16 | Simulation of Shiraz solar power plant for optimal assessment显示文摘 | Yaghoubi M Azizian K Kenary A | 2003 | Renewable Energy2003，28，： | 1 |
| 17 | Copper,chromium,and arsenic adsorption and equilibrium modeling in an iron-oxide-coated sand,background electrolyte system显示文摘 | Khaodhiar S Azizian M F Osathaphan K Nelson P O | 2000 | Water Air and Soil Pollution2000，119，： | 1 |
| 18 | Extended geometric method: a simple approach to derive adsorption rate constants of Langmuir-Freundlich kinetics 显示文摘 | AZIZIAN S HAERIFAR M BASIRI-PARSA J | 2007 | Chcmosphere2007，68，11： | 1 |
| 19 | Autonomous image-guided robot- assisted active catheter insertion显示文摘 | Jayender J Azizian M Patel RV | 2008 | IEEE T Robot2008，24，4： | 1 |
| 20 | 查看详情显示文摘 | Azizian J Mohammadi M K Firuzi O | | 0，，： | 1 |
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