人卵巢癌原代培养体外药敏试验的评价

目的探讨ATP法体外药敏试验预测临床卵巢癌化疗的价值。方法采用ATP法,通过简易机械法制备细胞悬液,测定31例卵巢癌病人肿瘤组织体外原代细胞对6种常用化疗药物的敏感性,并与临床疗效进行相关分析。结果（1）ATP法检测卵巢癌患者药敏试验的可评价率为90．3％,敏感性为90．48％,特异性为85．71％,阳性预测值为95％．阴性预测值为75％,总的预测准确率为89．3％。（2）ATP法敏感可靠、简单快速、易于临床推广。结论ATP法可作为指导临床个体化疗的有效途径。     

ATP生物荧光技术在卵巢癌体外药敏检测中的应用

目的 评价ATP生物荧光肿瘤药敏检测与临床疗效的相关性,探讨其临床应用价值。方法 对34例卵巢癌新鲜瘤组织和腹水进行肿瘤细胞分离、原代培养,以ATP生物荧光体外药敏检测技术进行检测。结果ATP生物荧光法测定细胞数量具有相关性好(r=0.9981),量程宽(10-100000个细胞),敏感性高(最小检测10个活细胞)的优点,其检测结果与其他方法相比有较高的相关性。32例卵巢癌病人体外药敏结果表明,其整体预测值为90.6％;其中阳性预测值为94.7％,阴性预测值为84.6％,敏感性90％,特异性91.7％。各种药物体外药敏检测结果与临床资料基本相符。结论 ATP生物荧光肿瘤药敏检测结果与临床疗效具有较好的相关性。该药敏检测方法对于筛选及临床应用新药,研究和确定新的化疗方案和治疗原则,评估联合用药方案,实现肿瘤病人的个体化化疗具有指导作用。     

^18F-FDG PET-CT与肿瘤标志检测对肺癌诊断价值的分析

目的：分析^18F-FDG PET-CT和肿瘤标志对肺癌的诊断价值及SUVmax与临床病理参数的关系。方法：选取152例可疑肺癌的初治患者,治疗前分别行^18F-FDG PET-CT及神经元特异性烯醇化酶（NSE）、癌胚抗原（CEA）和细胞角蛋白片段（CYFRA21—1）检查,以细胞学或病理学结果为金标准分析^18F-FDG PET-CT和肿瘤标志的诊断价值。结果：152例患者中,肺癌患者134例。^18F-FDG PET-CT诊断肺癌的敏感性、特异性和准确性分别为96．27％、61．11％和92．11％;肿瘤标志的敏感性、特异性和准确性分别为87．31％、55．56％和81．41％,两者比较P值分别为0．008、1．000和0．024。在134例肺癌患者中,初步统计显示SUVmax与原发肿瘤大小有相关性（r=0．548,P=0．000）,SUVmax在不同病理类型之间差异无统计学意义,P=0．085,SUVmax与各肿瘤标志值无相关性。结论：SUVmax在一定程度上反映原发病灶大小,^18F-FDG PET-CT检查对肺癌诊断是一种灵敏可靠的方法,联合肿瘤标志综合分析能提高肺癌诊断的准确性,减少漏诊或误诊率。     

鼻咽癌中自发凋亡与临床放射敏感性的研究

目的探讨鼻咽癌组织中细胞自发凋亡在预测临床放射敏感性中的意义。方法对38例初治、无远处转移、放疗前鼻咽癌患者活检标本,采用TUNEL法检测细胞自发凋亡,临床观测患者放疗过程中鼻咽部肿瘤的消退情况。结果自发凋亡率与鼻咽癌瘤体的消退率呈显著正相关(放疗剂量为40Gy时,γ=0.836;放疗剂量为70Gy时,γ=0.909;P<0.01)。患者性别、年龄及分期与鼻咽癌瘤体的消退率均无相关性(P>0.05)。结论鼻咽癌中细胞自发凋亡率可以作为鼻咽癌临床放射敏感性可能的预测指标。     

肿瘤标记物蛋白芯片诊断系统在肠道肿瘤检测中的应用

目的研究多种肿瘤标记物蛋白芯片诊断系统用于肠道肿瘤的诊断价值。方法采用多种肿瘤标记物蛋白芯片诊断系统测定分析30例肠道恶性肿瘤患者,20例良性肠道肿瘤患者,30例对照人群和30例肠道肿瘤术后复发患者血清中的组织特异性抗原(TPS)、癌胚抗原(CEA)、神经元特异性烯醇化酶(NSE)、糖原125(CA125)、糖原153(CA153)、糖原242(CA242)、糖原199(CA199)、前列腺特异性抗原(PSA)、铁蛋白(FER)。结果30例肠道肿瘤患者血清有27例肿瘤标记物为阳性(阳性率为90.0%);20例良性肠道肿瘤患者血清有3例肿瘤标记物为阳性(阳性率为15.0%);30例对照人群血清3例肿瘤标记物为阳性(阳性率为10.0%);30例肠道肿瘤术后复发患者血清30例肿瘤标记物为阳性(阳性率为100.0%)。在肿瘤组和复发组中以TPS的阳性率最高(分别为83.3%、90.0%),其次为CEA、CA199和CA242。结论TPS在肿瘤的诊断中是1种敏感性较高的肿瘤标记物。多种肿瘤标记物蛋白芯片诊断系统的应用对肠道肿瘤患者的良恶性判断有一定的临床应用价值,对术后复发转移的判断也有一定的应用价值。     

MTT法药敏试验应用于晚期乳腺癌

[目的]探讨MTT法体外药敏试验在复发转移性乳腺癌化疗中的价值。[方法]取40例复发转移性乳腺癌患者肿瘤组织，以简易机械法制备细胞悬液，应用MTT法体外药敏试验测定其对10种常用化疗药物的敏感性，并指导临床用药，同时与临床疗效进行相关分析。[结果]MTT法检测复发转移乳腺癌患者药敏试验的成功率为92．5％，敏感性为87．5％，特异性为69．2％。阳性预测值为84.0%,阴法预测值为75％，总的预测准确率为81．1％。[结论]MTT简便快速，可作为临床上指导复发转移乳腺癌个体化化疗的有效方法．     

非小细胞肺癌患者血清蛋白指纹图谱的构建及其临床意义

目的探讨血清蛋白指纹图谱在非小细胞肺癌诊断中的价值。方法取肺癌患者与年龄、性别匹配的对照组的血清标本进行实验,应用SELDI-TOF-MS技术及WCX2磁珠,检测各血清标本构建血清蛋白指纹图谱,应用Biomarker Wizard和SPSS13．0软件分析数据并建立诊断模型,并评价各诊断模型对肺癌的诊断价值。结果由分子量为4797、2768、3268（m／z）的差异蛋白峰组成的非小细胞肺癌诊断模型Ⅰ,经验证诊断模型Ⅰ的判别准确率为91．3％（158／173）,敏感性为89．2％（66／74）,特异性为92．9％（92／99）,统计学分析结果提示其敏感性高于CYF21-1、SCC、CEA的联合检测。由分子量为2768、3403、9498（m／z）的差异蛋白峰组成的Ⅰ期非小细胞肺癌诊断模型Ⅱ,其判别准确率为88％（44／50）,敏感性为90．0％（18／20）,经扩大样本量验证,其特异性为83．8％（83／99）,统计学分析结果提示其敏感性高于SCC、CYF21—1及CEA的联合检测。分别对23例肺腺癌、51例肺鳞癌患者和30名正常对照组对比分析后,筛选出差异最大的4个标志蛋白,其分子量为3268、2768、3403,9498（m／z）,分别组合成的诊断模型Ⅲ、Ⅳ,对肺腺癌及肺鳞癌的诊断均具有较高的敏感性及特异性,统计学分析结果提示其敏感性高于相关肿瘤标志物的检测。结论非小细胞肺癌诊断模型Ⅰ、Ⅱ分别对NSCLC、Ⅰ期NSCLC患者的诊断具有较高的敏感性及特异性,其敏感性高于相关肺癌肿瘤标志物的联合检测;差异蛋白3268、2768、3403、9498（m／z）对于肺腺癌或肺鳞癌的诊断具有较高的敏感性及特异性,有望成为新的肿瘤标志物。     

卵巢透明细胞癌18例临床分析

目的：分析18例卵巢透明细胞癌的临床特点、预后及与子宫内膜异位症的关系。方法：对18例原发性卵巢透明细胞癌患者回顾性分析其治疗方法、对化疗的敏感性和生存率,以及合并子宫内膜异位症患者对化疗的敏感性和生存率。结果：卵巢透明细胞癌患者常发生月经紊乱或绝经后出血,I期患者比例较高,多发生于单侧卵巢,常伴发卵巢子宫内膜异位症,是否合并子宫内膜异位症对化疗的敏感性和生存率无统计学差异。结论：卵巢透明细胞癌临床特点不同于其他的卵巢上皮性恶性肿瘤,其临床分期早,对化疗不敏感,易复发,预后差。伴有子宫内膜异位症与否与预后无相关性。本病预后与临床分期直接相关,与肿瘤体积、有/无腹水、肿瘤扩散程度、肿瘤侵犯单侧或双侧卵巢等因素密切相关。     

泛素特异性蛋白酶18在恶性肿瘤发生和发展中作用及其机制的研究进展

恶性肿瘤给社会和个人带来了沉重的负担，提高肿瘤的早期诊断率和治疗效果、寻找潜在的治疗靶点成为目前临床上亟待解决的问题。泛素特异性蛋白酶18 （USP18）是蛋白翻译后修饰酶的一种，具有去泛素化酶活性，能够特异性地将干扰素刺激基因15 （ISG15）从底物蛋白上移除，也可调控干扰素信号通路，阻碍ISG的表达，在感染、免疫等病理过程中发挥作用。近年的研究发现，USP18在多种类型肿瘤中高表达，在肿瘤的发生和发展中扮演了重要角色，能够影响肿瘤增殖和凋亡，调控肿瘤细胞代谢、侵袭和转移。此外，USP18还可影响肿瘤细胞的放射和化学治疗的敏感性，并调控部分免疫细胞的功能。因此，开发 USP18 的特异性抑制剂，可能成为抗肿瘤药物开发的一种新思路。     

非小细胞肺癌患者尿蛋白质组差异表达分析

背景与目的筛查非小细胞肺癌(non-small cell lung cancer,NSCLC)患者尿液中差异表达蛋白,确定可用于NSCLC早期诊断、监测预后和治疗评估的生物标记物。方法分别收集40例已病理证实初诊NSCLC患者、8例肺部良性疾病患者和22例健康志愿者的尿液样本。利用0.9%一维十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(sodium dode-cyl sulfate polyacrylamide gel electrophoresis,1D SDS-PAGE)技术和MS-Thermo-Orbitrap-Velos质谱分析仪对NSCLC组和非肿瘤组尿液中蛋白质进行分离、提取及识别,鉴定出NSCLC患者尿液中的差异表达蛋白。应用SPSS 20.0软件中受试者工作特征曲线(receiver operating characteristic curve,ROC)分别对其敏感性、特异性进行分析,并进行实验验证,从而确定出与NSCLC相关的生物标记物。结果 NSCLC患者组和非肿瘤组尿液差异性表达蛋白质集中表现在90 k Da、60 k Da和20 k Da-30 k Da凝胶条带中。在NSCLC患者尿液蛋白分析中发现了4种与NSCLC相关的差异表达蛋白,包括上调蛋白LRG1、CA1和下调蛋白VPS4B、YWHAZ。这4种差异表达蛋白作为独立的NSCLC生物标记物其敏感性较低:LRG1蛋白敏感性83.0%(25/30)、特异性90.0%(18/20);CA1蛋白敏感性60.0%(18/30)、特异性90.0%(18/20);VPS4B蛋白敏感性73.3%(22/30)、特异性90.0%(18/20);YWHAZ蛋白敏感性60.0%(18/30)、特异性95.0%(19/20)。而采用蛋白质组合模式对NSCLC进行筛查、诊断,则其敏感性和特异性分别可高达96.7%(29/30)和85%(17/20)。结论 LRG1、CA1蛋白在NSCLC患者尿液中高表达,而VPS4B、YWHAZ蛋白呈低表达,差异表达蛋白均提示有可能成为用于NSCLC早期筛查、监测预后和治疗评估的生物标记物。LRG1、CA1、VPS4B和YWHAZ尿液蛋白作为单一生物标记物应用于NSCLC筛查和诊断的敏感性较低,而采用蛋白质组合模式明显优于独立模式对NSCLC的筛查和诊断,故蛋白质组合模式在临床诊疗中将更具有良好应用价值和前景。     

非小细胞肺癌患者血清VEGF表达水平及其临床意义

目的：检测非小细胞肺癌（NSCLC）患者血清血管内皮生长因子（vascula rendothelial growth factor,VEGF）的表达水平,探讨其临床意义。方法：应用酶联免疫吸附法（ELISA）检测114例NSCLC和87例健康对照组血清中VEGF水平,计算VEGF的灵敏度和特异度,阳性预测值和阴性预测值,分析患者治疗前血清VEGF水平对其近期疗效的影响以及VEGF与CYFRA21-1和CEA联合检测的临床意义。结果：（1）NSCLC组血清VEGF平均水平为203.70ng/L,对照组为76.21ng/L,两组差别有统计学意义（P〈0.001）。有负荷组患者血清VEGF水平高于无负荷组（P〈0.001）。（2）VEGF以200.6ng/L为医学参考值上限,VEGF对NSCLC诊断的灵敏度为69.7%,特异度为96.4%;有负荷组患者灵敏度可达到81.9%,而无负荷组仅为33.7%,其差别有统计学意义（P〈0.01）。（3）NSCLC患者随着血清VEGF平均水平的升高,其疗效逐渐降低（P〈0.05）。3种肿瘤标记物联合分析显示,随着患者血清肿瘤标记物阳性数目的增多,无效患者的比例呈上升趋势,当患者血清肿瘤标记物阳性数目达到3种时,约87.5%的患者治疗无效。（4）血清VEGF水平与肿瘤大小、分化程度及临床分期密切相关（P〈0.01）,与患者的年龄无关（P〉0.05）。结论：VEGF在NSCLC的发生、生长和转移过程中起着极其重要的作用,有可能成为一种新的肿瘤标记物用于NSCLC的辅助诊断或检测指标。     

18F-FDG PET/CT显像SUVmax预测非霍奇金淋巴瘤化疗疗效的价值

目的 探讨非霍奇金淋巴瘤（non-Hodgkin's lymphoma，NHL）患者治疗前¹⁸F-FDG PET/CT显像中最大标准化摄取值（SUVmax）与疗效的关系。方法 回顾性分析2017年7月—2019年3月在我科行¹⁸F-FDG PET/CT显像并经淋巴结活检确诊为NHL的146例患者的资料。根据国际工作组织淋巴瘤疗效评估标准（IWC）将化疗6个疗程的NHL患者分为有效组和无效组。分析SUVmax与临床病理特征及疗效的关系。结果 在NHL患者中，临床分期、恶性程度、病灶大小、坏死情况、骨髓浸润、治疗前血清乳酸脱氢酶、Ki-67阳性率与SUVmax有关（P＜0.05）；无效组治疗前SUVmax高于有效组（16.68±6.16 vs 12.16±5.27，t=4.654，P=0.001）；治疗前SUVmax评估NHL患者疗效的最佳截断值为14.836，对应的 AUC为0.835（95%CI：0.751~0.920），特异度为80.0%，敏感度为77.4%；治疗前SUVmax>14.836是影响NHL患者疗效的独立危险因素（OR=1.688，95%CI：1.179~2.418，P=0.007）。 结论 ¹⁸F-FDG PET/CT显像中的SUVmax可评估NHL患者的化疗疗效。     

晚期非小细胞肺癌患者化疗前后血清HIF-1α和VEGF的变化及临床意义

目的:探讨晚期非小细胞肺癌(non-small cell lung cancer,NSCLC)患者化疗前后外周血清缺氧诱导因子-1α（hypoxia inducible factor-1,HIF-1α）、血管内皮生长因子（vascular endothelial growth factor,VEGF）与化疗疗效之间的关系。方法:选择本院收治的22例NSCLC患者,采用酶联免疫吸附试验法(enzyme linked immunossorbent assay,ELISA)检测患者化疗前后血清中HIF-1α和VEGF的含量。结果:本组患者化疗总有效率为27%。化疗后患者血清HIF-1α和VEGF与化疗前比均有升高趋势,化疗无效组血清VEGF由（562.03±279.10）pg/ml升高为（740.26±364.34）pg/ml,差异显著（P＜0.05）。化疗前血清HIF-1α和VEGF水平之间,及与血清癌胚抗原（CEA）、神经元特异性烯醇化酶（NSE）、细胞角蛋白（CYFRA）21-1之间无显著相关性。化疗前血清HIF-1α和VEGF含量在年龄、性别、病理类型、分期、有无胸水、疗效上无明显统计学意义。结论:检测晚期NSCLC患者外周血VEGF,可能有利于协助评估化疗疗效。     

Tumor M2 pyruvate kinase--determination in breast cancer patients receiving trastuzumab therapy

This study was designed to investigate the value of tumor M2 pyruvate kinase (tumor M2-PK) determination as an early marker for response to trastuzumab therapy in patients with metastasized breast cancer. Plasma samples of 20 trastuzumab patients were collected immediately after standard hematological investigations. The tumor M2-PK level was quantified using an enzyme linked immunosorbent assay (ScheBo Biotech) and CA 15-3 was measured automatically using the Bayer Immuno 1 immunoanalyzer and the corresponding assay. Each assay was performed in duplicate. The values were analyzed for correlation to the clinical course of each patient. Median observation time was 13 months with a range from 4 to 22 months. In 17/20 (85%) patients, tumor M2-PK determination was a marker for the clinical course of their disease. In this 'tumor M2-PK sensitive' group, 49 known clinical events (remission or progression according to UICC criteria) were recorded. The variation in tumor M2-PK level paralleled 63% of the clinical events (31/49). Our data suggest that tumor M2-PK determination in the plasma of patients with metastasized breast cancer could be a helpful tool for monitoring therapeutic success.     

Antitumor and antivascular effects of AVE8062 in ovarian carcinoma

The purpose of this study was to examine the therapeutic efficacy and underlying mechanisms of action of a vascular-disrupting agent, AVE8062, and to determine its effects on tumor metabolic activity. The in vitro and in vivo effects of AVE8062 alone and in combination with docetaxel were tested in chemotherapy-sensitive and chemotherapy-resistant ovarian cancer models. Tumors were analyzed for necrosis, microvessel density, endothelial cell apoptosis, and proliferation following treatment. The effect of AVE8062 on tumor regression and metabolic activity was examined by magnetic resonance (MR) or by [18F]fluorodeoxyglucose ([18F]FDG) uptake by positron emission tomography (PET) with MR imaging, respectively. AVE8062 monotherapy was effective in inhibiting tumor growth in all models (range 43-51% versus control; P < 0.05). Combination therapy was even more effective in inhibiting tumor growth (range 76-90% compared with controls, P < 0.01). AVE8062 in combination with chemotherapy significantly prolonged survival in HeyA8-injected mice (P < 0.001) compared with other groups. AVE8062-based therapy resulted in rapid development of central tumor necrosis, decreased microvessel density, decreased proliferation, and induction of apoptosis of tumor-associated endothelial cells. MR imaging showed regression of established HeyA8 ovarian tumors and [18F]FDG PET with MR showed rapid decrease in metabolic activity after AVE8062 therapy. Combination of AVE8062 plus docetaxel results in potent inhibition of ovarian cancer growth. These results suggest that AVE8062 may be useful as a clinical therapeutic approach for ovarian cancer patients and that functional [18F]FDG PET imaging may predict clinical response before an anatomic reduction in tumor size.     

Sialyltransferase and nucleoside diphosphatase as markers for tumor monitoring

In this study we report serum sialyltransferase and nucleoside diphosphatase activities of patients with malignant tumors of various primary sites and extent, prior to and during chemotherapy. Enzyme levels were compared to clinical and laboratory parameters. The sialyltransferase and uridine diphosphatase (UDPase) activities in samples of 43 patients with advanced ovarian cancer was four to ten fold above the normal mean value (sialyltransferase 85.1 +/- 58 pmol/hr/ml and UDPase 26.6 +/- 7.2 nmol/hr/ml). After effective chemotherapy with adriamycin and cisplatin, the enzyme activity decreased markedly. In cases of complete remission, enzyme activity decreased to the normal range. In three cases after initial response for several months a rise of both enzymes was observed before any other biochemical finding of the forthcoming relapse. Similar patterns were observed in testicular cancer (6 cases). Clinical correlation is also obvious in other tumors except malignant lymphomas. Our findings show that the activities of these enzymes correlated with the clinical course, and therefore they can be the basis for clinical application for tumor monitoring, especially during chemotherapy.     

Predictive Value of Serum Alkaline Dnase Activity Variations in Treatment of Head and Neck Cancer

The aim of this study was to evaluate the variation in serum alkaline DNase activity (SADA) as a means of therapeutic monitoring in patients with head and neck cancer. Blood samples from 40 patients were collected before, during, and some weeks up to months after therapy. A decrease in SADA during treatment was usually associated with a primary clinical response, while no decrease indicated non-response to therapy. In patients with complete tumor regression the initial decrease of SADA was usually followed by an increase exceeding the initial level. A similar increase was not observed in patients with tumor progression.     

Relationship of serum levels of VEGF and TGF-β1 with radiosensitivity of elderly patients with unresectable non-small cell lung cancer

This study aimed to evaluate the relationship of serum levels of vascular endothelial growth factor (VEGF) and transforming growth factor-β1 (TGF-β1) with radiosensitivity of elderly patients with unresectable non-small cell lung cancer (NSCLC) receiving three-dimensional conformal radiation therapy (3D-CRT). Fifty-eight elderly patients with unresectable NSCLC and 40 healthy controls were enrolled in this study. Serum levels of VEGF and TGF-β1 were detected by the enzyme-linked immunosorbent assay (ELISA) method before and after 3D-CRT. Clinical performances of serum VEGF and TGF-β1 levels in predicting radiosensitivity of NSCLC patients with 3D-CRT were evaluated. Serum VEGF and TGF-β1 levels of NSCLC patients were higher than those of health controls (all p?<?0.05). After 3D-CRT treatment, 41 patients achieved effective clinical response (complete response (CR)?+?partial response (PR)) and 17 patients were ineffective clinical response (stable disease (SD)?+?progressive disease (PD)). There was no significant difference in the VEGF and TGF-β1 levels between the effective and ineffective groups before 3D-CRT (all p?>?0.05). Serum levels of VEGF and TGF-β1 after 3D-CRT in the effective group were lower compared with the levels before 3D-CRT treatment (p?<?0.001 and 0.027, respectively). However, no significant differences in serum VEGF and TGF-β1 levels between before and after 3D-CRT in the ineffective group were observed (p?=?0.196 and 0.517, respectively). We observed significant differences in serum VEGF and TGF-β1 levels between the effective and ineffective groups after 3D-CRT (p?<?0.001 and 0.013, respectively). Sensitivity and specificity of VEGF combined with TGF-β1 in predicting radiosensitivity of NSCLC patients with 3D-CRT were 87.8 and 94.1 %, respectively. In conclusion, our results indicate that serum VEGF and TGF-β1 levels may accurately predict radiosensitivity of elderly patients with unresectable NSCLC receiving 3D-CRT.     

树突状细胞调节细胞因子诱导杀伤细胞疗法配合中药治疗化疗无效晚期恶性肿瘤的临床疗效

目的探讨树突状细胞调节细胞因子诱导杀伤细胞（DC—CIK）配合中药治疗化疗无效晚期恶性肿瘤的临床疗效。方法选取2012年2月至2013年2月间采用DC-CIK配合中药治疗化疗无效的晚期恶性肿瘤患者120例,观察评价其近期疗效,生活质量改善情况及不良作用。结果120例患者中,临床有效率为12．5％,疾病控制率为69．2％。治疗后,患者生活质量明显改善,治疗过程中未发生明显不良反应。结论DC—CIK细胞因子配合中药治疗化疗无效的晚期恶性肿瘤是一种有效的姑息治疗方法,有必要进行深入的临床研究。     

彩色多普勒超声对乳腺癌新辅助化疗疗效的评价

目的探讨彩色多普勒超声对评价乳腺癌新辅助化疗疗效的价值。方法48例患者51处病灶在新辅助化疗前后分别对原发灶及腋下淋巴结进行观察。以化疗前彩超体积测量比手术前肿瘤体积缩小>50%为化疗有效,分析化疗有效与化疗无效肿瘤在新辅助化疗前后原发灶内血流分级及Vmax、RI值的变化。结果36处乳腺癌化疗有效;其原发灶内血流信号分级降低或血流消失;Vmax、RI值降低(P<0.01);化疗前发现异常淋巴结共40例,化疗后有34例缩小或消失,30例血流丰富程度明显降低或消失。结论彩色多普勒超声是对乳腺癌新辅助化疗进行疗效评价的客观而有效的检测工具,其Vmax、RI值可作为潜在预测乳腺癌新辅助化疗疗效的敏感指标。