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Multiphase computed tomography radiomics of pancreatic intraductal papillary mucinous neoplasms to predict malignancy

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World Journal of Gastroenterology 2020年第24期26卷 3458-3471页

作者： Stuart L Polk Jung W Choi Melissa J McGettigan Trevor Rose Abraham Ahmed jongphil kim Kun Jiang Yoganand Balagurunathan Jin Qi Paola T Farah Alisha Rathi Jennifer B Permuth Daniel Jeong University of South Florida College of Medicine TampaFL 33612United States Department of Diagnostic and Interventional Radiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Biostatistics and Bioinformatics H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Anatomic Pathology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Cancer Physiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Clinical Science H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Radiology University of FloridaGainesvilleFL 32610United States Department of Cancer Epidemiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States

BACKGROUND Intraductal papillary mucinous neoplasms(IPMNs)are non-invasive pancreatic precursor lesions that can potentially develop into invasive pancreatic ductal ***,the International Consensus Guidelines(ICG)for IPMNs provides the basis for evaluating suspected IPMNs on computed tomography(CT)*** using the ICG,it remains challenging to accurately predict whether IPMNs harbor high grade or invasive disease which would warrant surgical resection.A supplementary quantitative radiological tool,radiomics,may improve diagnostic accuracy of radiological evaluation of *** hypothesized that using CT whole lesion radiomics features in conjunction with the ICG could improve the diagnostic accuracy of predicting IPMN *** To evaluate whole lesion CT radiomic analysis of IPMNs for predicting malignant histology compared to International Consensus *** Fifty-one subjects who had pancreatic surgical resection at our institution with histology demonstrating IPMN and available preoperative CT imaging were included in this retrospective *** lesion semi-automated segmentation was performed on each preoperative CT using Healthmyne software(Healthmyne,Madison,WI).Thirty-nine relevant radiomic features were extracted from each lesion on each available contrast *** analysis of the 39 radiomics features was performed for each contrast phase and values were compared between malignant and benign IPMN groups using logistic *** quantitative and qualitative CT measurements were also compared between groups,viaχ2(categorical)and Mann Whitney U(continuous)*** Twenty-nine subjects(15 males,age 71±9 years)with high grade or invasive tumor histology comprised the"malignant"cohort,while 22 subjects(11 males,age 70±7 years)with low grade tumor histology were included in the"benign"*** analysis showed 18/39 precontrast,19/39 arterial phase,and 21/39 venous phase features

关键词： Radiomics Intraductal papillary mucinous neoplasm Multiphase computed tomography Pancreas Oncology Pancreatic cancer

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