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Medical management of gastric cancer:A 2014 update 被引量:10
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作者 Elena Elimova Hironori Shiozaki +8 位作者 Roopma Wadhwa Kazuki Sudo Qiongrong Chen Jeannelyn S Estrella Mariela A Blum Brian Badgwell Prajnan Das Shumei Song Jaffer A Ajani 《World Journal of Gastroenterology》 SCIE CAS 2014年第38期13637-13647,共11页
Gastric cancer represents a serious health problem on a global scale. It is the second leading cause of cancer-related death worldwide. Novel therapeutic targets are desperately needed because the meager improvement i... Gastric cancer represents a serious health problem on a global scale. It is the second leading cause of cancer-related death worldwide. Novel therapeutic targets are desperately needed because the meager improvement in the cure rate of about 10% realized by adjunctive treatments to surgery is unacceptable as &#x0003e; 50% patients with localized gastric cancer succumb to their disease. Either postoperative chemoradiotherapy (United States), pre-and post-operative chemotherapy (Europe), and adjuvant chemotherapy after a D2 resection (Asia) can all be regarded as standards of care in the localized gastric cancer management. In metastatic disease the addition of trastuzumab to chemotherapy is standard of care in Her2 positive disease. In the HER2 negative population, the treatments remain limited. In the first line setting, the standard of care is a combination of fluoropyrimidine and platinum containing chemotherapy, with or without epirubicin or docetaxel. The results of targeted therapy trials have by and large been disappointing, but none of these trials looked at an appropriately enriched population. Finally there is a meager overall survival benefit in treating patients with metastatic disease in the second line setting, with either irinotecan, docetaxel or ramucirumab however none of these drugs have been compared head to head in a well-powered randomized controlled trial. 展开更多
关键词 CHEMOTHERAPY Gastric cancer CHEMORADIATION METASTATIC LOCALIZED
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DWI和DKI预测局部进展期直肠腺癌新辅助放化疗反应 被引量:6
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作者 黄伟康 冯洁萍 +4 位作者 严兆贤 胡亚涛 戴剑濠 卢健烨 陈维翠 《放射学实践》 CSCD 北大核心 2022年第4期485-492,共8页
目的:探讨扩散峰度成像(DKI)与扩散加权成像(DWI)在预测局部进展期直肠腺癌(LARA)患者对新辅助放化疗(nCRT)治疗反应的价值。方法:将53例于术前接受nCRT且在nCRT前、后行高分辨率MRI、DWI(b=0、1000 s/mm^(2))及DKI(b=0、600、1000、200... 目的:探讨扩散峰度成像(DKI)与扩散加权成像(DWI)在预测局部进展期直肠腺癌(LARA)患者对新辅助放化疗(nCRT)治疗反应的价值。方法:将53例于术前接受nCRT且在nCRT前、后行高分辨率MRI、DWI(b=0、1000 s/mm^(2))及DKI(b=0、600、1000、2000 s/mm^(2))扫描的LARA患者纳入研究。测量病灶的平均扩散峰度(MK)、平均扩散系数(MD)、表观扩散系数(ADC)和肿瘤体积(V),计算治疗前后这4个指标的变化率(ADC_(ratio)、MK_(ratio)、MD_(ratio)和V_(ratio))。记录治疗前后患者血清CEA水平。根据美国国家综合癌症网络关于肿瘤退缩分级(pTRG)标准,将患者分为反应良好组(19例)和反应不佳组(34例),比较nCRT前、后两组患者各项指标值的差异。采用Spearman相关分析评估各项指标与TRG的相关性。采用受试者工作特征曲线(ROC)评估ADC_(pre)、MK_(pre)和MK_(ratio)对肿瘤nCRT后反应良好的诊断效能。结果:ADC_(pre)在反应良好组[(0.97±0.11)×10^(-3)mm^(2)/s]低于反应不佳组[(1.05±0.10)×10^(-3)mm^(2)/s],MK_(pre)、MK_(ratio)在反应良好组(1.26±0.51,0.19±0.06)高于反应不佳组(1.16±0.85,0.14±0.08),差异有统计学意义(P<0.05)。ADC_(pre)与pTRG呈正相关(r=0.40,P=0.003),MK_(pre)和MK_(ratio)与pTRG呈负相关(r=-0.54,P<0.001;r=-0.37,P=0.007)。ROC分析结果显示,ADC_(pre)、MK_(pre)和MK_(ratio)评估肿瘤nCRT后反应良好的曲线下面积(AUC)分别为0.71、0.85和0.73(P均<0.05),三项参数联合的AUC值(0.87)最大,诊断效能优于ADC_(pre)及MK_(ratio)(P均<0.05)。结论:MK_(pre)、MK_(ratio)和ADC_(pre)能较准确地预测LARA患者对nCRT的治疗反应,DKI联合DWI的诊断模型可提高诊断效能。 展开更多
关键词 扩散峰度成像 扩散加权成像 新辅助放化疗 直肠癌 治疗反应
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