基于MRI影像组学的BI-RADS 3-5类乳腺病变三分类

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Classification of BI-RADS 3-5 Breast Lesions Based on MRI Radiomics

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图5 采用LASSO算法分别筛选最优平扫特征、增强特征和融合特征. (a)通过调整λ使模型均方误差（MSE）达到最小，以确定最佳λ；(b)最优特征系数收敛图

Fig. 5 The LASSO algorithm is used to screen the optimal T1W features, DCE features and fusion features, respectively. (a) The optimal λ is determined by adjusting λ to minimize the mean square error (MSE) of the model; (b) Convergence diagram of optimal characteristic coefficients