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Vault predicting after implantable collamer lens implantation using random forest network based on different features in ultrasound biomicroscopy images

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国际眼科杂志:英文版 2023年第10期16卷 1561-1567页

作者： Bin Fang Qiu-Jian Zhu Hui Yang Li-Cheng Fan School of Mechanical and Electrical Engineering Soochow UniversitySuzhou 215100Jiangsu ProvinceChina Lixiang Eye Hospital of Soochow University Suzhou 215021 Jiangsu ProvinceChina

AIM:To analyze ultrasound biomicroscopy(UBM)images using random forest network to find new features to make predictions about vault after implantable collamer lens(ICL)***:A total of 450 UBM images were collected from the Lixiang Eye Hospital to provide the patient’s preoperative parameters as well as the vault of the ICL after *** vault was set as the prediction target,and the input elements were mainly ciliary sulcus shape parameters,which included 6 angular parameters,2 area parameters,and 2 parameters,distance between ciliary sulci,and anterior chamber height.A random forest regression model was applied to predict the vault,with the number of base estimators(n_estimators)of 2000,the maximum tree depth(max_depth)of 17,the number of tree features(max_features)of Auto,and the random state(random_state)of ***:Among the parameters selected in this study,the distance between ciliary sulci had a greater importance proportion,reaching 52%before parameter optimization is performed,and other features had less influence,with an importance proportion of about 5%.The importance of the distance between the ciliary sulci increased to 53% after parameter optimization,and the importance of angle 3 and area 1 increased to 5% and 8%respectively,while the importance of the other parameters remained unchanged,and the distance between the ciliary sulci was considered the most important *** features,although they accounted for a relatively small proportion,also had an impact on the vault *** parameter optimization,the best prediction results were obtained,with a predicted mean value of 763.688μm and an actual mean value of 776.9304μ*** R²was 0.4456 and the root mean square error was ***:A study based on UBM images using random forest network can be performed for prediction of the vault after ICL implantation and can provide some reference for ICL size selection.

关键词： random forest network ultrasound biomicroscopy images vault prediction implantable collamer lens

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