Background: Biliary stricture caused by malignant tumors is known as Malignant Biliary Stricture (MBS). MBS is challenging to differentiate clinically, and accurate diagnosis is crucial for patient prognosis and treatment. This study aims to identify the risk factors for malignancy in all patients diagnosed with biliary stricture by Endoscopic Retrograde Cholangiopancreatography (ERCP), and to develop an effective clinical predictive model to enhance diagnostic outcomes.
Methodology: Through a retrospective study, data from 398 patients diagnosed with biliary stricture using ERCP between January 2019 and January 2023 at two institutions: the First People's Hospital affiliated with Jiangsu University and the Second People's Hospital affiliated with Soochow University. The study began with a preliminary screening of risk factors using univariate regression. Lasso regression was then applied for feature selection. The dataset was divided into a training set and a validation set in an 8:2 ratio. We analyzed the selected features using seven machine learning algorithms. The best model was selected based on the Area Under the Receiver Operating Characteristic (ROC) Curve (AUROC) and other evaluation indicators. We further evaluated the model's accuracy using calibration curves and confusion matrices. Additionally, we used the SHAP method for interpretability and visualization of the model's predictions.
Results: RF model is the best model, achieved an AUROC of 0.988. Shap result indicate that age, stricture location, stricture length, carbohydrate antigen 199 (CA199), total bilirubin (TBil), alkaline phosphatase (ALP), (Direct Bilirubin) DBil/TBil, and CA199/C-Reactive Protein (CRP) were risk factors for MBS, and the CRP is a protective factor.
Conclusion: The model's effectiveness and stability were confirmed, accurately identifying high-risk patients to guide clinical decisions and improve patient prognosis.
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http://dx.doi.org/10.3389/fonc.2024.1406512 | DOI Listing |
Abdom Radiol (NY)
December 2024
University of Kentucky, Lexington, USA.
Post-surgical biliary complications increase morbidity, mortality, and healthcare utilization. Early detection and management of biliary complications is thus of great clinical importance. Even though the overall risk for biliary complications is low after laparoscopic cholecystectomy, post-cholecystectomy biliary complications are frequently encountered in clinical practice as laparoscopic cholecystectomy is the most common surgical procedure performed in the United States.
View Article and Find Full Text PDFCureus
November 2024
Radiology, Government Medical College & Hospital, Jammu, Jammu, IND.
Introduction: Obstructive jaundice resulting from a duodenal diverticulum is known as Lemmel syndrome. Lemmel syndrome should be included in the differential diagnosis in patients presenting with obstructive jaundice in the absence of choledocholithiasis, mass, or a stricture.
Aims And Objectives: To describe the computed tomography (CT) findings in patients with Lemmel syndrome.
Sci Rep
December 2024
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku Nagoya, Nagoya, Aichi, 467-8601, Japan.
Biliary and pancreatic tract stenosis are hallmark symptoms in pancreaticobiliary diseases, transcending malignancy. Endoscopic techniques are pivotal for biliary/pancreatic drainage; however, challenging scenarios arise when attempting to pass a guidewire (GW) through obstruction. Cholangioscopy-assisted GW placement has proven valuable, but challenges persist in its execution, particularly in maneuvering the GW through cholangioscopy.
View Article and Find Full Text PDFLiver Transpl
December 2024
Division of Image Guided Therapy, Diagnostic and Interventional Radiology Department, The Hospital for Sick Children, Toronto, Ontario, Canada.
Acta Med Okayama
December 2024
Department of Gastroenterological Surgery, Kochi Health Sciences Center.
Traumatic neuroma is an abnormal proliferation of injured nerves resulting from trauma or surgery. We present a case of traumatic neuroma arising in the cystic duct after cholecystectomy. A 66-year-old man was referred to our department due to a biliary tumor.
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