Research on intracranial spatial distribution of NSCLC brain metastatic based on TFCE

doi:10.3969/j.issn.1009-976X.2022.02.008

Abstract

Abstract: Objective By acquring spatial distribution of incidence rate of non-small cell lung cancer brain metastases based on MRI data, to determine the true signal area in brain metastatic areas. Methods According to the inclusion and exclusion criteria, patients with non-small cell lung cancer brain metastatic lesions were screened and included. We obtained their MRI data and segmented tumor area manually. After registration, we overlapped tumor regions together to calculate frequency of brain metastatic lesions. Using TFCE non-parametric analyses and permutation test to determine the true signal area. Results A total of 35 patients with non-small cell lung cancer brain metastases were included in this study. Frequency map showed highest frequency of non-small cell lung cancer was 22.86% and the highest metastatic number invoxel level was 8, which located in posterior midline of junction of parietal lobe and occipital lobe. The significant cluster of non-small cell lung cancer brain metastases was in grey-white matter border adjacent to ventricle and basal ganglia. Conclusion Non-small cell lung cancer brain metastases tend to locate in basal ganglia and posterior fossa and homogeneity exists between metastatic locations of different genders. Analyzing brain MRI data can provideassistance during the treatment process.

Key words: brain metastases, non-small cell lung cancer, TFCE, permutation test

摘要： 目的基于MRI图像获取非小细胞肺癌脑转移发生频率的空间分布情况,获取肿瘤重点转移区域。方法根据纳入-排除标准,筛选非小细胞肺癌脑转移患者,获取MRI原始数据,手动勾画肿瘤区域,获取基于体素水平的肿瘤转移频率;使用TFCE非参数分析计算统计值,进行排列测试提取肿瘤区域中的重点区域。结果共35例患者纳入本研究,频率分布图显示同一体素的非小细胞肺癌脑转移病例数最大值为8,最高频率为22.86%,位于顶叶枕叶交界处后正中线,而非参数分析显示显著的簇位于侧脑室旁基底节区的灰白质交界处。结论非小细胞肺癌倾向于转移至后颅窝与基底节区,对脑转移癌MRI检查的分析可以为临床治疗过程提供辅助。

关键词: 脑转移瘤, 非小细胞肺癌, TFCE, 排列测试

CLC Number:

R734.2

LI Wei, YANG Song-ran. Research on intracranial spatial distribution of NSCLC brain metastatic based on TFCE[J]. Lingnan Modern Clinics In Surgery, 2022, 22(02): 163-167.

李维, 杨淞然. 基于TFCE的非小细胞肺癌脑转移颅内空间分布频率的研究[J]. 岭南现代临床外科, 2022, 22(02): 163-167.

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