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1.
背景与目的肺癌居于全球男性及女性癌症相关死亡原因的首位,大多数患者在确诊时已属晚期,5年生存率仅为18%。肺癌可分为非小细胞肺癌(non-small cell lung carcinoma, NSCLC)和小细胞癌(small cell lung carcinoma, SCLC),其中NSCLC占肺癌的80%-85%,NSCLC根据组织学可主要分为腺癌(约占40%),鳞状细胞癌(20%-30%)和大细胞癌(10%),针对驱动基因的靶向治疗在肺腺癌中取得一定成绩,但在肺鳞癌的治疗中收效甚微,肺鳞癌的诊治更需得到关注,18F-脱氧葡萄糖(lfuorodeoxyglucose, FDG)正电子发射断层扫描/计算机体层摄影(positron emission tomography/computed tomography, PET/CT)越来越多地应用于肺癌的诊断与分期中,本研究旨在探讨18F-FDG PET/CT原发灶最大标准摄取值(maximum standardized uptake value, SUVmax)在肺鳞癌患者术后预后中的意义及与临床病理特征的关系。方法回顾分析2005年5月-2014年10月收治的182例初治、接受PET/CT检查、行根治术的原发肺鳞癌患者的临床影像病理及随访资料。采用Kaplan-Meier法及Cox模型分析患者生存情况,并分析原发灶SUVmax与各临床病理因素的关系。结果182例肺鳞癌患者原发灶SUVmax以13.0为界分为两组,SUVmax>13.0组与≤13.0组患者的中位总生存期分别为56个月和87个月,差异具有统计学意义(P=0.022)。原发灶SUVmax与性别、肿瘤最大径、肿瘤-淋巴结-转移(tumor-node-metastasis, TNM)分期、中性粒细胞、中性粒细胞/淋巴细胞比例(neutrophil-lymphocyte ratio, NLR)存在正相关性,与血红蛋白呈负相关(P<0.05)。Cox多因素分析显示SUVmax (HR=1.714,95%CI:1.021-2.876, P=0.042)、TNM分期(HR=1.677,95%CI:1.231-2.284, P=0.001)均为患者生存的独立预后影响因子,提示SUVmax有独立于病理TNM分期之外的预后价值。而且,SUVmax在I期肺鳞癌患者的预后中有意义(P=0.045)。结论 PET/CT SUVmax对肺鳞癌患者术后生存的预测有重要的价值,是独立于TNM分期之外的一个重要预后因素,并且原发灶SUVmax与多个临床病理因素间存在相关性。  相似文献   

2.
目的:评价立体定向消融放疗(SABR)在肺部寡转移瘤患者中的有效性和安全性。方法:回顾性分析2011—2018年行SABR的159例肺部转移瘤的患者资料,采用 Kaplan- Meier方法计算局控率(LCR)和总生存(OS),并采用 log- rank法单因素分析和 ...  相似文献   

3.
目的 探讨Ⅲ期非小细胞肺癌(NSCLC)氟标记脱氧葡萄(FDG)PET-CT原发灶代谢肿瘤体积(MTV)与预后相关性,通过MTV和最大标准摄取值(SUVmax)对预后影响的对比分析寻找预测预后的最佳指标.方法 搜集本院2004-2007年行FDG PET-CT全身扫描的56例Ⅲ期NSCLC患者,治疗前行PET-CT检查,治疗均采取同步放化疗,随访至治疗结束后2年.计算MTV与SUVmax值,进一步分析总生存与MTV和SUVmax的关系.结果 56例患者平均总生存时间为14.5个月,KaplanMeier法分析显示MTV对总生存影响有统计学意义(x2=5.42,P=0.014);SUVmax与总生存无关(x2=0.74,P=0.391).Cox回归模型分析显示MTV、SUVmax与总生存相关(x2=5.54,P=0.019;x2=4.47,P=0.031).结论 Ⅲ期NSCLC患者的FDG PET-CT MTV与总生存密切相关,有可能作为预测因子用于评价和预测预后.  相似文献   

4.
目的 评估VMAT用于局部晚期非小细胞肺癌(NSCLC)放疗近期疗效和不良反应。 方法 2016年间无法手术的局部晚期NSCLC患者共 58例接受同步放化疗或序贯放化疗,其中男 47例。放疗剂量为 38~66 Gy,53例(92%)患者放疗剂量≥56 Gy。放疗中位次数30次,单次剂量 1.8~3.0 Gy。28例(48%)患者接受同步化疗。 结果 中位随访时间9个月,1年总生存率84%,1年无进展生存48%。11例(19%)患者发生症状性放射性肺炎,其中1例患者因为放射性肺炎死亡。31例(53%)患者在放疗后半年内CT发现无症状性肺局部纤维化。17例(29%)患者出现2级食管炎,10例(17%)患者发生≥3级不良反应,其中9例为白细胞减少。 结论 采用VMAT行局部晚期NSCLC胸部放疗近期疗效理想,不良反应可接受,肺炎风险未见增加。  相似文献   

5.
ObjectivesOur goal was to evaluate stereotactic ablative radiotherapy (SABR) as a salvage option for isolated recurrence of NSCLC in the lung parenchyma after definitive treatment of stage I to III disease.MethodsPatients who had histologically confirmed, positron emission tomography–staged, isolated NSCLC recurring locally or metastasis in the lung parenchyma (≤3 cm, suitable for SABR) after previous definitive treatment were prospectively enrolled in this trial and treated with volumetric, image-guided SABR to 50 Gy in four fractions. Patients were then followed with computed tomography or positron emission tomography/computed tomography. Primary end points included the pattern of failure after salvage SABR, overall survival (OS), and progression-free survival (PFS).ResultsFifty-nine patients with recurrent disease were treated with salvage SABR. The median age was 70 years (range 45–86 years), and the median follow-up time after salvage SABR was 58.3 months. Re-recurrence after salvage SABR developed in 19 patients (32%). Measuring from the date of salvage SABR, the estimated 5-year rates of local, regional, and distant failure were 5.2%, 10.3%, and 22.4%, respectively; the estimated PFS was 46.2% at 3 years and 41.1% at 5 years; and the OS rates were 63.5% at 3 years and 56.5% at 5 years. A high post-SABR neutrophil-to-lymphocyte ratio was found to predict poor survival. Grade 3 treatment-related adverse events developed in three patients (5%). No patient had a grade 4 or 5 event.ConclusionOur study showed that salvage SABR provides excellent 5-year OS, local control, and PFS rates with minimal toxicity for patients with isolated NSCLC recurrence in the lung parenchyma. These results are striking and comparable to historically reported outcomes of patients with primary early-stage NSCLC treated with definitive SABR. SABR appears to be a very effective and safe salvage option for patients with isolated lung parenchyma recurrent disease after definitive treatment and should be considered along with surgery as a potential first-line option for patients with local lung parenchymal recurrent disease.  相似文献   

6.
 目的 观察三维适形放疗联合同期化疗治疗局部晚期非小细胞肺癌中放射性肺损伤情况,对其相关因 素进行分析,寻找合理的预测性 指标。 方法 47例符合入组条件的非小细胞肺癌患者接受三维适形放疗及同期化疗。处方剂量为60Gy常规 放疗,同期化疗方案为NP方案,对三维适形治疗计划及临床资料进行单因素、多因素分析,评 价肺损伤情况。 结果 (1)完全缓解3例, 部分缓解42例,总有效率为95.74%,1年生存率75.78%。全组发生急性放 射性肺炎0级2例,1级20 例,2级17例,3级8例,无4级放射性肺炎发生。(2)与严重放射性肺炎发生呈正相关的剂量 学因素为MLD、肺NTCP,肺V5、 V15、V20。临床资料中仅发现肿瘤GTV与严重放射性肺炎发生相关;多因素分析显示全肺平均 剂量为放射性肺炎的独立影 响因素。 结论 剂量学因素(MLD、肺NTCP,肺V5、V15、V20)可以较好地预测严重放射性肺炎的发生,全肺 平均剂量是放射性肺炎发生的独立影响因素。  相似文献   

7.
目的:回顾分析伴恶性胸腔积液(MPE)的非小细胞肺癌(NSCLC)原发灶放疗相关因素对生存影响。方法:2007—2019年间经病理学证实、初治的伴MPE的NSCLC共256例,其中117例纳入分析。按放疗剂量<63 Gy与≥63 Gy分为2个组,采用倾向性评分匹配法均衡组间混杂因素(卡钳值=0.1)。 Ka...  相似文献   

8.
Aims: The relationship between the maximum standardized uptake values (SUVmax) on positron emission tomography (PET) and serum carcinoembryonic antigen (CEA) level in non‐small cell lung cancer (NSCLC) patients was investigated. Methods: Consecutively, 197 surgically resected NSCLC patients with preoperative staging including serum CEA and PET were reviewed retrospectively. Results: When patients were subdivided into two groups based on the median value of the SUVmax (6.6), the 5‐year survival of patients with a high SUVmax was 63.20%, which was significantly worse than patients with a low SUVmax (87.29%, P = 0.0004). The 5‐year survival of patients with normal and high serum CEA level was 82.70 and 51.08%, respectively (P < 0.0001). Univariate and multivariate analyses indicated the independent prognostic impact of the SUVmax and serum CEA level. Patients with both low SUVmax and normal serum CEA level had favorable prognosis, whereas those with both high SUVmax and high serum CEA level had poor prognosis. Conclusion: Preoperative SUVmax and serum CEA level are independent prognostic factors for survival in NSCLC. The combined use of preoperative SUVmax and serum CEA level might be a better prognostic indicator.  相似文献   

9.
  目的  本研究前期探索了程序性死亡配体1(programmed death-ligand 1,PD-L1)在非小细胞肺癌(non-small cell lung carcinoma,NSCLC)组织表达及其与临床因素的关系,发现它与肿瘤分期存在正相关性,进一步分组研究其预后意义及与原发灶最大标准摄取值(maximum standardized uptake value,SUVmax)相关性。  方法  收集2008年4月至2014年8月122例就诊于天津医科大学肿瘤医院初治原发NSCLC患者的临床影像病理及随访资料,免疫组织化学法检测PD-L1表达情况,采用Kaplan-Meier法及Cox模型进行PD-L1表达的预后分析,Spearman检验分析PD-L1表达与SUVmax的相关性。  结果  早期NSCLC患者中,PD-L1(HR=4.518,95%CI:1.176-17.352,P=0.028)和肿瘤最大径(HR=1.404,95%CI:1.020-1.933,P=0.037)影响总生存时间(overall survival,OS),是OS的独立预后因子,性别、年龄、病理类型、CEA水平和SUVmax分组对OS差异无统计学意义(P>0.05);Ⅲ~Ⅳ期NSCLC患者中,性别、病理类型、肿瘤最大径和SUVmax分组是OS的影响因素,年龄、CEA水平、PD-L1表达水平不是OS的影响因素。本研究中,PD-L1表达与SUVmax水平无相关性。  结论  PD-L1表达是早期NSCLC患者独立预后因子,尚不能成为分期较晚患者的预后因素。PD-L1表达与原发灶SUVmax无相关性。   相似文献   

10.
Positron emission tomography (PET) is more accurate than computed tomography (CT) in the staging of non-small cell lung cancer (NSCLC). We analyzed the prognostic value of PET for survival in NSCLC patients. METHODS: Consecutive patients with proven NSCLC with PET for staging were selected. Staging by laboratory tests, bronchoscopy, chest X-ray, and CT was performed in all patients, leading to a clinical stage (c-TNM) prior to PET. A separate classification (pet-TNM) was obtained from PET images by observers blinded to clinical data. We performed univariate survival analysis with ECOG performance score, sex, weight loss, comorbidity, histology, c-TNM, and pet-TNM as variables. Cox regression analysis was performed with significant variables from the univariate analyses. RESULTS: Two hundred and sixty-six patients were included, 205 men and 61 women. c-TNM and pet-TNM were identical in 150 (56%) patients, 69 were upstaged, and 47 were downstaged by PET. At time of analysis, 198 (74%) patients had died. Univariate analysis showed significant survival differences for ECOG performance score (0 versus 1/2), weight loss (<10% versus >or=10%), pulmonary comorbidity, c-TNM, and pet-TNM (stage IA versus IB, IIA, IIB, IIIA, IIIB, IV). Cox regression analysis identified pet-TNM as the most significant (p < 0.001) prognostic factor, followed by ECOG performance score (p = 0.018). CONCLUSION: Tumor stage as determined by PET is the most significant prognostic factor for survival in patients with NSCLC.  相似文献   

11.
ABSTRACT: BACKGROUND: We studied whether maximum standardized uptake values (SUV) from [18F] PET/CT predict clinical outcome after concurrent proton/chemotherapy for stage III non-small cell lung cancer (NSCLC). METHODS: Eighty-four patients were treated prospectively with 74 Gy(RBE) proton therapy and concurrent chemotherapy. PET/CT scans were available before (SUV1) and within 6 months after (SUV2) treatment. The predictive value of clinical and PET/CT factors were analyzed with univariate and multivariate Cox regression models. RESULTS: Median survival time was 29.9 months. At 3 years, the local recurrence-free survival (LRFS) rate was 34.8%; distant metastasis-free survival (DMFS), 35.4%; progression-free survival (PFS), 31.2%; and overall survival (OS), 37.2%. Patients with SUV2 [greater than or equal to] 3.6 (the median) had high rates of LR (p = 0.021). Of 12 clinicopathologic features evaluated in univariate analysis, only KPS, SUV1, and SUV2 predicted LRFS, DMFS, PFS, and OS (p <0.05). Multivariate analysis showed that KPS (p = 0.025) and SUV2 (p = 0.017) were independently prognostic for LRFS and that SUV1, SUV2, and KPS were independently prognostic for DMFS, PFS, and OS (p <0.05). CONCLUSIONS: SUV2 predicted LRFS, and SUV1 and SUV2 predicted DMFS, PFS, and OS, in patients with stage III NSCLC treated with concurrent chemotherapy and high-dose proton therapy.  相似文献   

12.
目的 探讨疗前FDG PET-CT获得的NSCLC原发灶代谢参数及其临床因素对NSCLC放疗患者预后影响。方法 回顾分析2007—2013年间在本院首程放疗前行PET-CT的170例NSCLC患者资料,分析其临床因素、原发灶SUVmax、SUVmean、MTV及TLG等参数与患者预后关系。应用Kaplan-Meier法计算生存率并Logrank检验和单因素分析,应用Cox模型进行多因素分析。  相似文献   

13.
Intensity modulated radiation therapy (IMRT) guided by PET/CT imaging with respiratory gating was employed to dose escalate in patients with non-small cell lung cancer (NSCLC), using accelerated fractionation with induction chemotherapies. One patient developed a grade 5 pneumonitis and the study was halted at 84 Gy in 35 fractions.  相似文献   

14.
PURPOSE: Radiation pneumonitis is a serious complication that develops after thoracic irradiation. The purpose of this study was to identify prognostic factors for severe radiation pneumonitis in patients with non-small-cell lung cancer. METHODS AND MATERIALS: The medical records of patients with non-small-cell lung cancer and severe radiation pneumonitis were reviewed. Variables were analyzed by univariate and stepwise multivariate analysis using the Cox regression model. RESULTS: Among the 31 patients, the mortality rate approached 50% in the first 2 months after the onset of radiation pneumonitis. The variables significantly associated with survival in the univariate analysis were tumor histologic feature, grade and extent (out-of-field or in-field) of radiation pneumonitis, oxygenation index, and serum albumin (<35 g/L or >or=35 g/L), and uric acid levels at the onset of radiation pneumonitis. Only the extent of radiation pneumonitis and serum albumin level were independently associated with survival in the multivariate analysis. CONCLUSION: The mortality rate of non-small-cell lung cancer patients with severe radiation pneumonitis is extremely high, and survival is much shorter in patients with out-of-field radiation pneumonitis or a low serum albumin level at the onset. Additional studies to investigate the factors precipitating out-of-field radiation pneumonitis should improve the management of irradiation complications.  相似文献   

15.

Background and purpose

We report our outcomes for patients with NSCLC treated with SABR to 70 Gy in 10 fractions and propose indications for this regimen as well as new dose–volume constraints.

Materials and methods

Volumetric image-guided SABR was used to treat 82 patients with clinical challenging NSCLC, not suitable for 50 Gy in 4 fractions, to a final dose of 70 Gy in 10 fractions. Endpoints included overall survival (OS), toxicity, and disease control.

Results

At a median follow-up time of 21.1 months, 2-year OS and local control rates were 66.9% and 96.2%, respectively. The most common side effects were radiation pneumonitis (14.6% grade 2, 2.4% grade 3), followed by chest wall pain (4.9% grade 2, 1.2% grade 3). Multivariate analysis revealed chest wall V50 > 60 cm3 to be associated with chest wall pain. No patient developed brachial plexopathy. One patient with bronchial tree tumor invasion died of hemoptysis.

Conclusions

SABR with 70 Gy in 10 fractions appears to achieve excellent local control and acceptable toxicity for clinically challenging cases with improved tolerance of the chest wall and brachial plexus as compared with 50 Gy in 4 fractions. This regimen may not be suitable in patients with tumor invading critical central structures. More studies are needed to validate our conclusions.  相似文献   

16.
目的 评价Ⅲ期NSCLC的3DCRT疗效以及预后相关因素。方法 2000—2010年接受3DCRT的NSCLC患者474例,其中男382例、女92例,中位年龄63岁;ⅢA期211例、ⅢB期263例。单纯放疗165例、放疗+化疗者309例;采用常规放疗+3DCRT、3DCRT、IMRT者分别为55、340、79例,中位等效剂量60(44~77) Gy。Kapian-Meier法计算生存率,Logrank法单因素分析,Cox模型多因素分析。结果 随访率96.6%;全组1、3、5年OS率分别为63.0%、24.9%、17.8%,中位生存期18个月。单因素分析显示性别、年龄、近期疗效、放疗方式、分割方式、化疗与否、RP为预后因素(P=0.004、0.001、0.000、0.007、0.004、0.009、0.049);多因素分析显示性别、年龄、近期疗效、放疗方式、RP为预后因素(P=0.006、0.000、0.000、0.003、0.048),其中放疗剂量60~66 Gy者预后最好。结论 Ⅲ期NSCLC的3DCRT疗效表明女性、低年龄组、近期疗效好、全程3DCRT、0-1级RP者预后好,反之预后差;3DCRT联合化疗有生存获益,放疗剂量以60~66 Gy为宜。  相似文献   

17.
目的 观察肺癌患者三维适形放疗后放射性肺炎的发生情况,探讨放疗前肺功能参数在预测非小细胞肺癌放射性肺炎方面的价值.方法 对81例接受三维适形放射治疗并符合入组条件的非小细胞肺癌患者进行放疗前基础肺功能测定,并记录剂量体积参数,观察放疗后放射性肺炎的发生情况,对患者临床资料、肺功能参数、剂量体积参数等指标进行单因素及多因素分析,评价肺功能参数预测放射性肺炎的价值.结果 全组患者中17例出现≥2级放射性肺炎,占21.0%(17/81),其中2级15例,3级2例,无4、5级放射性肺炎发生.单因素分析结果显示,放疗前肺功能指标FEV1.0、FEV1.0/FVC、DLCO及放疗计划指标PTV体积、双肺MLD、V5、V20、V30,均影响患者≥2级放射性肺炎的发生(P<0.05).≥2级放射性肺炎组患者肺功能参数FEV1.0、FEV1.0/FVC、DLCO指标值均低于0、1级放射性肺炎组,且有统计学意义(P<0.05).多因素分析结果显示:FEV1.0、FEV1.0/FVC、DLCO等相关肺功能指标值并非≥2级放射性肺炎的独立影响因素,仅双侧肺脏MLD、V5、V20及V30为患者≥2级放射性肺炎发生的独立影响因素(P<0.05).结论 基础肺功能参数FEV1.0、FEV1.0/FVC、DLCO在≥2级急性放射性肺炎预测方面具有一定价值,肺功能受损是放射性肺炎的高危因素,但并非影响放射性肺炎的独立因素.  相似文献   

18.
PURPOSE: (18)F-fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET) combined with computer tomography (PET-CT) is superior to CT alone in mediastinal lymph node (LN) staging in non-small cell lung cancer (NSCLC). We studied the potential impact of this non-invasive LN staging procedure on the radiation treatment plan of patients with NSCLC. PATIENTS AND METHODS: The imaging and surgical pathology data from 105 patients included in two previously published prospective LN staging protocols form the basis for the present analysis. For 73 of these patients, with positive LN's on CT and/or on PET, a theoretical study was performed in which for each patient the gross tumour volume (GTV) was defined based on CT and on PET-CT data. For each GTV, the completeness of tumour coverage was assessed, using the available surgical pathology data as gold standard. A more detailed analysis was done for the first ten consecutive patients in whom the PET-CT-GTV was smaller than the CT-GTV. Theoretical radiation treatment plans were constructed based on both CT-GTV and PET-CT-GTV. Dose-volume histograms for the planning target volume (PTV), for the total lung volume and the lung volume receiving more than 20 Gy (V(lung(20))), were calculated. RESULTS: Data from 988 assessed LN stations were available. In the subgroup of 73 patients with CT or PET positive LN's, tumour coverage improved from 75% when the CT-GTV was used to 89% with the PET-CT-GTV (P=0.005). In 45 patients (62%) the information obtained from PET would have led to a change of the treatment volumes. For the ten patients in the dosimetry study, the use of PET-CT to define the GTV, resulted in an average reduction of the PTV by 29+/-18% (+/-1 SD) (P=0.002) and of the V(lung(20)) of 27+/-18% (+/-1 SD) (P=0.001). CONCLUSION: In patients with NSCLC considered for curative radiation treatment, assessment of locoregional LN tumour extension by PET will improve tumour coverage, and in selected patients, will reduce the volume of normal tissues irradiated, and thus toxicity. This subgroup of patients could then become candidates for treatment intensification.  相似文献   

19.
[目的]分析肺癌患者放射治疗后急性放射性肺损伤发生的影响因素。[方法]选取171例肺癌放射治疗的患者,采用Logistic回归分析研究性别、年龄、是否化疗、放疗剂量、V5、V20、平均肺剂量(MLD)等因素与患者3级及以上急性放射性肺损伤发生率的相关性。[结果]171例肺癌放射治疗的患者中,发生3级及以上急性放射性肺损伤50例(29.3%)。单因素分析发现,吸烟、放疗前化疗周期数多、同期放化疗、V5>40%、V20>25%、V20>28%、MLD>10Gy、MLD>13Gy均可导致肺癌患者3级及以上放射性肺损伤发生率的升高。多因素分析显示,吸烟、放疗前化疗周期数多、V20>28%、MLD>13Gy与3级及以上放射性肺损伤发生率有关。[结论]在肺癌放疗计划设计中,应针对中国肺癌患者的特点,设定适合的物理参数;此外,还需考虑患者的吸烟史、化疗史等个体化因素,尽可能降低急性放射性肺损伤的发生率。  相似文献   

20.
目的观察Ⅲ期非小细胞肺癌患者应用顺铂联合长春瑞滨同步放疗的治疗效果和相关影响因素。方法三维适形放疗联合化疗治疗50例不能手术的ⅢA (N2)~ⅢB期NSCLC患者。顺铂30 mg/m2,第1~3、22~24天;长春瑞滨20 mg/m2,第1、8、22、29天。三维适形放疗在第1天开始,放疗中位剂量64Gy。CTC 3.0版用于评价治疗不良反应。结果50例患者客观缓解率为70%。局部肿瘤无进展中位生存时间和中位生存时间分别为7.5月和16.1月。1、2、3年生存率分别为60%、32.7%和21%。多因素分析结果显示高剂量照射(>64Gy)组病人的局部区域控制率和生存率好于低剂量照射组(≤64Gy),总疗程时间是病人生存率的影响因素,疗程时间短的病人生存率好。9名病人出现了3级血液不良反应。20人出现1~2级急性放射性食管炎;26人出现1~2级急性放射性肺炎。结论长春瑞滨联合顺铂和同步放疗治疗局部晚期非小细胞肺癌是可行的。提高放疗剂量或缩短疗程时间可以提高局部晚期非小细胞肺癌病人的生存率。  相似文献   

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