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表2 365例鼻咽癌放疗患者发生TLI影响因素的Logistic回归分析
Table 2 Logistic regression analysis of factors influencing radiation⁃induced temporal lobe injury in 365 patients with naso⁃
pharyngeal carcinoma undergoing radiotherapy
Univariate logistic regression analysis Multivariate logistic regression analysis
Characteristics
OR(95%CI) P OR(95%CI) P
Sex 1.289(0.592-2.805) 0.523 - -
Age 0.999(0.973-1.025) 0.936 - -
Chemotherapy modality 0.857(0.484-1.518) 0.598 - -
Hypertension 1.138(0.557-2.324) 0.723 - -
Diabetes mellitus 0.725(0.212-2.482) 0.608 - -
Hyperlipidemia 1.226(0.537-2.799) 0.628 - -
Stage Ⅲ⁃Ⅳ 5.467(0.731-40.897) 0.098 - -
T3⁃T4 stage 4.921(1.884-12.852) 0.010 0.288(0.104-0.799) 0.017
N2⁃N3 stage 1.013(0.522-1.963) 0.971 - -
M1 stage 1.565(0.331-7.399) 0.572 - -
Radiotherapy modality 0.860(0.452-1.637) 0.646 - -
Total radiation dose 1.001(1.000-1.001) 0.034 1.000(1.000-1.001) 0.272
D (Gy) 1.255(1.162-1.356) 0.001 1.453(1.036-1.987) 0.030
1 cm 3
Dmean (Gy) 1.138(1.057-1.226) 0.001 0.854(0.699-1.045) 0.125
Dmax (Gy) 1.260(1.154-1.376) 0.001 1.153(0.923-1.439) 0.210
Dmin (Gy) 1.078(0.564-2.062) 0.820 - -
V40 Gy (%) 1.130(1.064-1.201) 0.001 1.038(0.864-1.248) 0.687
V70 Gy (%) 1.668(1.409-1.974) 0.001 1.381(1.005-1.898) 0.047
D1% (Gy) 1.196(1.117-1.282) 0.001 0.743(0.528-1.047) 0.089
Radiotherapy plan and follow⁃up images of a patient with nasopharyngeal carcinoma staged as T4N1M0(stage IVA). The dose⁃volume histogram of
the left temporal lobe shows D 1 cm 3 =7 358.9 cGy and V70Gy=2.85%. Follow⁃up MRI performed 18 months after radiotherapy revealed radiationinduced injury
in the left temporal lobe.
图1 1例发生TLI的鼻咽癌患者的放疗计划和MRI影像
Figure 1 Radiotherapy plan and MRI images of a nasopharyngeal carcinoma patient with temporal lobe injury
相似辐射剂量的鼻咽癌患者而言,放射性 TLI 可能 TLI比判断该患者是否会发生TLI更具实际意义,有
仅发生在一侧,而非双侧,造成上述现象的原因尚 助于更精确地制定治疗方案。先进的放射治疗技
不清楚,值得进一步研究。本研究选取一侧颞叶的 术,如IMRT已经改善了剂量分布,但由于其靠近鼻
剂量参数进行研究分析,预测哪一侧颞叶会出现 咽,仍然对颞叶构成风险。对于接受不同放射治疗

