肿瘤
词汇介绍
拓展阅读
解析
Linear 英 /ˈlɪniə(r)/ 美 /ˈlɪniər/
释 义 adj. 线的，线型的；直线的，线状的；长度的
同根词 linearly adv. 成直线地；在线上地
linearity n. 线性；线性度；直线性
linearize vt. 使线性化
linearise vt. 使直线化（等于linearize）
例 句 Even putting this data together in a linear way, you can come up with the most powerful source for any business in how and where it engages its customers. 即使以线性方式将这些数据汇总在一起，对于任何企业如何以及在何处接洽客户，你也能为其提供最强有力的信息来源。
Regression 英 /rɪˈɡreʃn/ 美 /rɪˈɡreʃn/
释 义 n. 回归；退化；逆行；复原
同根词 regressive adj. 回归的；后退的；退化的
regress n. 回归；退回
regress vi. 逆行，倒退；复归
regress vt. 使…倒退
例 句 If your regression tests are automated, then go ahead and run all of them all the time. 如果你的回归测试是自动执行的，那么你可以在同时运行所有测试。
概述
复制标题以18F-FDG PET/CT线性回归斜率评价异质性指数作为预测胰腺导管腺癌肿瘤复发的预后指标
发表时间：2017-06-20
影响因子：7.2
作者： Yong-il Kim
期刊：Eur. J. Nucl. Med. Mol. Imaging
A total of 93 pancreatic ductal adenocarcinoma patients (M:F = 60:33, mean age = 64.2 ± 9.1 years) who underwent preoperative 18F-FDG PET/CT following pancreatic surgery were retrospectively enrolled. The standardized uptake values (SUVs) and tumor-to-background ratios (TBR) were measured on each 18F-FDG PET/CT, as metabolic parameters. Metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were examined as volumetric parameters. The coefficient of variance (heterogeneity index-1; SUV mean divided by the standard deviation) and linear regression slopes (heterogeneity index-2) of the MTV, according to SUV thresholds of 2.0, 2.5 and 3.0, were evaluated as heterogeneity indices. Predictive values of clinicopathologic and 18F-FDG PET/CT parameters and heterogeneity indices were compared in terms of pancreatic cancer recurrence.
译文