期刊论文

Quantitative analysis of CT radiomics features of nasopharyngeal carcinoma

中文

中国医学物理学杂志

1005-202X

2019

36

5

551-555

10.3969/j.issn.1005-202X.2019.05.011

国家重点研发计划(2017YFC0113202).

本校为第一机构

目的:分析不同强化时相鼻咽癌CT影像组学特征的差异及其变化规律。方法:回顾性分析41例初诊鼻咽癌患者CT图像,每组CT图像包含平扫、动脉期、静脉期3个时相,将大体肿瘤靶区(GTV)和翼外肌设置为感兴趣区。比较不同时相GTV、翼外肌间影像组学特征参数的差异。结果:在平扫与动脉期、平扫与静脉期、动脉期与静脉期3组比较中,GTV和翼外肌各自差异有统计学意义的特征分别有18、21、9个和31、31、22个。在动脉期、静脉期与平扫的比较中,GTV灰度强度四分位差随分位数增大而增大。GTV与翼外肌在平扫、动脉期、静脉期的比较中,差异具有统计学意义的特征平扫时主要分布在灰度共生矩阵。3组比较中共有的差异有...

Objective To analyze the differences and change patterns of radiomics features in the multi-phase contrast-enhanced computed tomography (CT) images of nasopharyngeal carcinoma (NPC). Methods The CT images of 41 patients with newly diagnosed NPC were retrospectively analyzed. Each group of CT images consisted of 3 phases, namely plain scan, arterial phase and venous phase. The gross tumor volume (GTV) and pterygoid muscle at each phase were set as regions of interest. Finally, the differences in CT radiomic features of GTV and pterygoid muscle w...