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第46卷第9期 万丽娟,李金凯,苏国义,等. 基于临床及剂量学特征构建模型预测鼻咽癌放疗后颞叶损伤的研究[J].
                  2026年9月                     南京医科大学学报(自然科学版),2026,46(9):1348-1355                      ·1353 ·

























                   Radiotherapy plan and follow⁃up images of a patient with nasopharyngeal carcinoma staged as T2N3M1(stage IVB). The dosevolume histogram of
                the left temporal lobe shows D 1 cm 3 =5 642.3 cGy and V70Gy=0%. Followup MRI images obtained 22 months after radiotherapy showed no radiationinduced
                injury in the temporal lobe.
                                         图2 1例未发生TLI的鼻咽癌患者的放疗计划和MRI影像
                          Figure 2 Radiotherapy plan and MRI images of a nasopharyngeal carcinoma patient without TLI


                A                              B                              C
                                                                                   0.15
                   1.0                                                                               Clinical model
                                                   1.0
                                                                                                     Combined model
                   0.8                             0.8                             0.10              All
                                                                                                     None
                   Sensitivity  0.6                Observed probability  0.6     Net benefit  0.05
                   0.4
                                                   0.4
                                  Clinical model
                                  (AUC=0.635)                      Ideal             0
                   0.2                             0.2
                                  Combined model                   Apparent
                                  (AUC=0.853)        0             Bias⁃corrected  -0.05
                     0
                      .0  0.2  0.4  0.6  0.8  1.0     .0  0.2  0.4  0.6  0.8  1.0      .0  0.1  0.2  0.3  0.4  0.5
                              1-Specificity                Predicted probability             High risk threshold
                     D             0            20             40            60            80            100
                        Points
                                        2           4
                        T
                                   1          3
                        D1cc
                                  45                55                65               75                85
                        V70 Gy
                                   0     2      4      6     8     10
                        Total points
                                   0              40              80             120             160
                        Risk of TLI
                                                0.01        0.05        0.20                 0.80
                   A:ROC curves of the clinical model and combined model. B:Calibration curve of the combined model. C:Decision curve analysis results of the
                clinical model and combined model. D:Nomogram of the combined model.
                                  图3   365例鼻咽癌放疗患者的临床模型及联合模型对放射性TLI的预测结果
                Figure 3  Prediction results of the clinical model and combined model for radiation⁃induced TLI in 365 patients with naso⁃
                        pharyngeal carcinoma undergoing radiotherapy


                技术(包括IMRT和VMAT)的鼻咽癌患者,其颞叶的                        数进行单因素和多因素分析发现 T分期、 D
                                                                                                        1 cm 3 、V70 Gy
                最佳剂量⁃容积限制尚未完全确定               [23] 。使用临床剂         是放射性TLI的独立预测因素。在临床特征统计分
                量学模型和人工智能模型分析数据                [24] ,为放疗计划        析时发现高血压、糖尿病等基础疾病在 TLI 组与非
                提出适当的限制,实现安全的剂量递增。                                损伤组间无显著统计学差异,与既往部分研究结果
                    本研究对鼻咽癌患者的临床特征及剂量学参                           相符。然而在一项基于定量 MRI 生物标志物和临
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