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实时超声造影定量分析鉴别原发性肝细胞癌与肝硬化结节 总被引:1,自引:0,他引:1
目的评价实时超声造影时间-强度曲线定量分析在鉴别原发性肝细胞癌和肝硬化结节中的应用价值。方法选取52例患者,其中原发性肝细胞癌26例,肝硬化结节26例。以声诺维2.4ml行低机械指数(MI〈0.09)实时超声造影后,用超声仪自带软件对病变内部灰阶强度变化绘制时间.强度曲线(time-intensitycurve,TIC),计算并比较两者峰值强度(peak intensity,PI)、峰值时间(peak time,PT)、曲线下降斜率(descending slop,DS)、曲线下面积(area under curve,AUC)和持续增强时间(enhancement duration,ED)。结果所有病变造影后均呈动态增强变化。原发性肝细胞癌组PT与ED分别为(21.06±10.09)S和(45.74±11.62)S明显小于肝硬化结节组的(33.58±10.60)S和(94.20±19.92s)(P〈0.01),而PI、DS及AUC在原发性肝细胞癌及肝硬化结节组之间差异无统计学意义(P〉0.05)。结论低机械指数实时超声造影TIC定量分析能鉴别原发性肝细胞癌和肝硬化结节,PT及ED可作为其有效指标。 相似文献
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原发性肝细胞肝癌是我国常见的恶性肿瘤之一,年病死率居恶性肿瘤第二位。预后较差,且术后复发率高[1]。研究资料表明,多种细胞因子及受体在肝癌发生、发展中发挥重要作用,其中自细胞介素-1β(interleukin-1β,IL-lβ)在肿瘤细胞的生长、行为恶化等一系列病理过程中扮演了重要角色,对癌周组织和非癌组织也具有不同程度的影响[2]。现就IL-1β与原发性肝癌的关系综述如下。 相似文献
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目的 探讨实时超声造影在肝癌微创介入治疗中的应用价值.方法 63例肝癌患者在分别接受经肝动脉化疗栓塞术(TACE)、射频消融(RFA)和微波消融(MCT)治疗中及治疗后,采用实时超声造影对其中76个病灶检查,并与常规超声、CT、数字剪影血管造影(DSA)比较.结果 TACE组21个病灶治疗后1个月, 超声造影显示13个病灶有部分残留,与DSA结果 一致.RFA组和联合治疗组(TACE和RFA,TACE和MCT)共55个病灶在首次接受RFA及MCT治疗后即刻行彩色多普勒超声(CDFI)检查,检出6个病灶部分残留,而超声造影检出24个病灶部分残留.介入治疗后最后一次随访中,超声造影显示有20个病灶部分残留、55个病灶治疗完全、1个病灶判断不明确,与最终诊断比较,在诊断准确性上,超声造影明显优于CDFI(P=0.039),超声造影与增强CT比较,差异无统计学意义(P=0.930).结论 实时超声造影可以增加检测肝癌的血流信号强度,有助于确定介入治疗范围,尤其对于在介入治疗短期内需多次确定疗效者以及消融治疗中即刻评价疗效者,更具优势. 相似文献
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我们采用免疫组织化学的方法检测诱生型一氧化氮合酶 (iNOS)在原发性肝细胞癌 (HCC)及癌旁组织 (PCHT)中的表达 ,探讨其与HCC临床病理资料的相关性 ,观察一氧化氮 (NO)在HCC发生、发展中的作用 ,现将结果报道如下。一、对象与方法1.标本 :随机取我院 1996~ 1999年手术切除的肝脏标本共 5 0例 ,HBsAg均为阳性患者 ,术后病理证实均为HCC ,其中 3 0例有PCHT。取肝破裂伤患者肝组织 8例为正常对照。将HCC标本按Ed mondson’s标准分级。iNOS免疫组织化学染色按ABC法操作。同时设置空白对照… 相似文献
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目的 观察对比剂超声造影(contrast-enhanced ultrasound,CEUS)成像技术对原发性肝癌的诊断价值,以及对肝癌射频消融术治疗效果的评价.方法 适合行射频消融治疗的46例原发性肝癌患者,观察射频消融术前普通超声、CT与CEUS的差别;同时以CT作为标准,对比射频消融术后行CEUS的价值.结果 CEUS与CT检查对原发性肝癌术前诊断价值基本相同,两者的阳性似然比分别为1.26和1.31,敏感度、特异度分别为97%、91%和23%、31%,而灰阶超声检查诊断原发性肝癌的阳性似然比为0.99,敏感度、特异度分别为76%和23%与前两者相比较稍差.射频消融术后CEUS对残存病灶诊断的敏感度和特异度分别为60%和90%,阳性似然比6.18,阴性似然比为0.44,与CT相比差异有统计学意义(P=0.012).所有患者随访1~9个月,平均5个月,目前均存活;术后1个月射频消融灶周围肿瘤残留3例(6.5%);术后3、6、9个月复发率分别为8.7%(4/46)、11%(5/46)、11%(5/46).结论 CEUS与CT结合对诊断原发性肝癌和射频消融术后的复查具有实际应用价值. 相似文献
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HDGF(hepatom a- derived growth factor)是一种最先从培养的肝癌细胞株 Hu H- 7中分离得到酸性肝素结合蛋白 ,它能够刺激肝内多种细胞的生长 ,如肝癌细胞、成纤维细胞、血管平滑肌细胞和内皮细胞等。为了阐明 HDGF表达与肝癌的关系 ,作者使用重组的 HDGF蛋白及刺激兔得到人源化兔HDGF抗体 ,采用 RT- PCR、蛋白质印记技术、免疫荧光和免疫组织化学技术等多种实验方法 ,对肝癌细胞株 (高分化型 :Hep G2、Hep3B;差分化型 :Mahlavu、SK- Hep1 )和 1 0 5例人肝细胞肝癌 (HCC)手术标本中 HDGF的表达和分布进行了研究。结果发现 ,… 相似文献
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超声造影对小肝癌合并肝炎后肝硬化的诊断价值 总被引:2,自引:0,他引:2
目的 探讨超声造影对小肝癌合并肝炎后肝硬化的诊断价值。方法 2004年3月至2005年10月,使用造影剂Sonovue对小肝癌结节行超声造影检查,评价肝癌瘤体内的增强变化,并与动态增强CT和(或)动态增强MRI对比。结果 小肝癌超声造影的表现以动脉期呈高增强,门静脉期呈等或低增强,延迟期呈低增强为标准,正确诊断率为88.2%(60/68),而结合延迟期肝癌呈低增强的标准,正确诊断率为97.1%(66/68),假阳性率2.9%(2/68)。结论 超声造影能提高肝硬化背景下小肝癌的诊断率。 相似文献
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肝癌是目前世界上常见的恶性肿瘤之一,据我国卫生部1995年统计资料显示,肝癌年死亡率为0.02%,居第二位,且有上升趋势.手术治疗一直是肝癌综合治疗的主要手段.近10余年来,随着超声学治疗学的飞速发展,新兴起的高强度聚焦超声(HIFU)作为一种无创性非手术疗法,利用瞬态高温、空化和机械效应杀死肿瘤细胞的新手段越来越引起重视,并在实验研究和临床应用方面取得了一定进展.有文献显示,HIFU治疗肝癌可改善机体的免疫紊乱状态,促进局部组织中的细胞免疫反应.本文将对聚焦超声在肝细胞肝癌的免疫治疗中的机制及免疫学进展进行阐述. 相似文献
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超声造影与增强CT诊断肾细胞癌的比较研究 总被引:1,自引:0,他引:1
目的:比较研究SonoVue超声造影(CEUS)和增强CT(CECT)在肾细胞癌诊断中的应用价值.方法:对56例肾占位性病变行SonoVue超声造影检查(CEUS组),同时对其中53例行增强CT检查(CECT组).连续、实时、动态观测肾肿瘤及周边肾实质血流灌注情况,记录注射造影剂后皮质期、实质期及延迟期肿瘤增强形态、强化方式,并与CECT增强全过程相比较.结果:CEUS组癌灶增强主要表现为皮质期等增强,实质期、延迟期低或等增强,仅有少部分表现为三期轻微增强.确诊.肾恶性肿瘤42例,误诊4例;确诊良性肿瘤7例,误诊3例.CECT组确诊肾恶性肿瘤38例,误诊5例;确诊良性肿瘤6例,误诊4例.CEUS和CECT诊断肾恶性肿瘤的灵敏度、阳性预测价值、诊断准确率分别为91.3%/88.4%、93.3%/88.4%、87.5%/81.1%.结论:CEUS和CECT都能敏感显示肾细胞癌血供强化特征,在肾细胞癌的定性诊断中起到相互补充的作用. 相似文献
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目的研究超声造影成像技术对肾癌的临床诊断价值。方法对21例经手术病理证实的肾脏恶性肿瘤(肾细胞癌18例,肾盂癌3例)患者进行超声造影观察,分析其造影增强图像特点,并与增强CT对照分析。结果所有患者均获得清晰的肿瘤动态造影灌注图像。18个(100%)肾细胞癌病灶在超声造影(CEUS)和增强CT(CECT)皮质期均显示全瘤增强,CEUS及CECT表现为高增强分别为14个(77.8%1和16个(88.9%,P〉0.05),等增强分别为4个(22.2%)和2个(11.1%,P〉0.05)。造影剂早于肾皮质消褪者在CEUS和CECT分别为13个(72.2%)和15个(83.3%),与肾皮质同步消褪分别为5个(27.8%)和3个(16.7%),两者无显著性差异。3例肾盂癌在超声造影及增强CT均呈全瘤强化,造影强度与肾皮质相同,较肾皮质提前消褪。结论超声造影成像技术能清晰显示肾癌的血流灌注特点,为临床提供了一种简便易行的肾癌诊断手段。 相似文献
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Torzilli G Palmisano A Del Fabbro D Marconi M Donadon M Spinelli A Bianchi PP Montorsi M 《Annals of surgical oncology》2007,14(4):1347-1355
BACKGROUND: Preliminary results showed that contrast-enhanced intraoperative ultrasonography (CEIOUS) could provide information not obtainable with conventional IOUS during surgery for hepatocellular carcinoma (HCC). The aim of the study was to prospectively validate the role of CEIOUS on the basis of a larger experience and to establish a new classification that takes into account its findings. METHODS: Eighty-seven consecutive patients underwent hepatecomies for HCC. Those patients with new lesions at IOUS underwent CEIOUS: for that patients received intravenously 4.8 mL sulphurhexafluoride microbubbles. Pattern of enhancement was classified in 4 categories: A1 (full enhancement in the arterial phase and wash-out in the delayed phases), A2 (intralesional signs of neovascularization during all phases), A3 (no nodular enhancement but detectability during the liver enhancement), and B (undetectability during the liver enhancement). Resection was recommended for A1-3 nodules and no treatment for B nodules. RESULTS: Twenty-nine patients (33%) had 59 new lesions at IOUS and underwent CEIOUS. Twenty-seven nodules showed a B pattern at CEIOUS and were not removed; 32 nodules were classified as A1 in 5 patients, A2 in 11 patients, and A3 in 16 patients. The nodules were removed, and by histology, five A1, nine A2, and six A3 nodules were confirmed to be HCC. CEIOUS modified the operative decision making in 79% of these patients. CONCLUSIONS: CEIOUS is useful during surgery for HCC; it complements the accuracy of IOUS and affects the radicalness of the surgical. Specificity of CEIOUS has to be further improved, although intrinsic drawbacks exist in the diagnostic criterion of tumor vascularity. 相似文献
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Ching-Lung Hsieh Cheng-Ming Peng Chun-Wen Chen Chang-Hsien Liu Chih-Tao Teng Yi-Jui Liu 《World journal of gastrointestinal surgery》2024,16(11):3400-3407
The management of early stage hepatocellular carcinoma (HCC) presents significant challenges. While radiofrequency ablation (RFA) has shown safety and effectiveness in treating HCC, with lower mortality rates and shorter hospital stays, its high recurrence rate remains a significant impediment. Consequently, achieving improved survival solely through RFA is challenging, particularly in retrospective studies with inherent biases. Ultrasound is commonly used for guiding percutaneous RFA, but its low contrast can lead to missed tumors and the risk of HCC recurrence. To enhance the efficiency of ultrasound-guided percutaneous RFA, various techniques such as artificial ascites and contrast-enhanced ultrasound have been developed to facilitate complete tumor ablation. Minimally invasive surgery (MIS) offers advantages over open surgery and has gained traction in various surgical fields. Recent studies suggest that laparoscopic intraoperative RFA (IORFA) may be more effective than percutaneous RFA in terms of survival for HCC patients unsuitable for surgery, highlighting its significance. Therefore, combining MIS-IORFA with these enhanced percutaneous RFA techniques may hold greater significance for HCC treatment using the MIS-IORFA approach. This article reviews liver resection and RFA in HCC treatment, comparing their merits and proposing a trajectory involving their combination in future therapy. 相似文献
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目的:研究不同大小病灶乳腺癌常规超声及超声造影检查的特征。方法:回顾性分析107例病理诊断为乳腺癌的病人。根据肿块最大直径分为两组:≤2.0 cm组(50.5%,54/107)和>2.0 cm组(49.5%,53/107)。比较两组的常规超声检查结果与超声造影检查图像特征。结果:与>2.0 cm组比较,常规超声检查乳腺癌≤2.0 cm组易出现肿块方位不平行[19例(35.2%)比6例(11.3%),P=0.004],血流Alder分级多为0~Ⅰ级[41例(75.9%)比25例(47.2%),P=0.002]。两组差异有统计学意义。两组乳腺癌超声造影检查有4方面的特点。①≤2.0 cm组低增强或等增强多于>2.0 cm组,[23例(42.6%)比5例(9.4%),P<0.001]。②肿块周围多无穿支血管[34例(63.0%)比20例(37.7%),P=0.009]。③肿块内多无充盈缺损[49例(90.7%)比30例(56.6%),P<0.001]。④造影剂廓清时间多为快出与等出[48例(88.9%)比37例(69.8%),P=0.038]。两组这些差异均有统计学意义。结论:不同大小病灶乳腺癌常规超声及超声造影检查特征不同。乳腺肿块的超声造影结果分析也要考虑病灶大小。 相似文献
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超声造影技术对子宫内膜癌肌层浸润深度诊断价值的探讨 总被引:1,自引:0,他引:1
目的探讨超声造影技术对子宫内膜癌肌层浸润深度的诊断价值。方法对我院自2005年6月至2007年12月期间经诊刮确诊为子宫内膜癌患者,行超声造影检查,选择手术病理分期为I期的30例患者为研究对象,进行回顾性分析。将术前超声造影检查及术中肉眼观察的内膜癌肌层浸润情况,与术后的病理诊断相比较。结果30例患者中,病理检查诊断为Ⅰa期5例,Ⅰb期19例,Ⅰc期6例。术前超声造影检查的总符合率为66.7%(20/30)。经一致性检验,Kappa=0.435,提示超声造影检查与病理结果之间存在中等程度的一致性。术中肉眼观察的总符合率为56.7%(17/30),经一致性检验,Kappa=0.287,提示两者一致性属一般。术前超声造影检查判断肌层浸润的敏感性、特异性、准确率、阳性预测值和阴性预测值分别为84.0%、2/5、76.7%、87.5%和2/6;术中肉眼观察分别为76.0%、3/5、73.3%、90.5%、3/9。术前超声造影判断深肌层浸润的敏感性、特异性、准确率、阳性预测值和阴性预测值分别为5/6、87.5%、86.7%、5/8和95.5%;术中肉眼观察分别为4/6、87.7%、83.3%、4/7、91.3%。结论术前应用超声造影辅助诊断内膜癌的肌层浸润深度有一定意义,优于术中肉眼观察,但对于合并子宫肌腺症及病灶较大的患者易误诊,需扩大样本量及积累操作经验进一步评价其意义。 相似文献
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《Diagnostic and interventional imaging》2020,101(11):733-738
PurposeThe purpose of this study was to retrospectively compare the imaging features of hepatic epithelioid angiomyolipoma (HEAML) to those of hepatocellular carcinoma negative for hepatitis B surface antigen and hepatitis C antibody (NBNC-HCC) on contrast-enhanced ultrasound (CEUS) with sulphur hexafluoride microbubbles.Material and methodsTwenty-two patients (4 men, 18 women) with a mean age of 42.6 ± 10.2 (SD) years (range: 22–63 years) with histopathologically confirmed HEMAL were included in the study. Forty-four patients (30 men, 14 women) with a mean age of 57.3 ± 15.9 years (range: 19-85 years) with histopathologically confirmed NBNC-HCC were randomly selected from our institution's database as a control group. The CEUS characteristics of the two groups were compared.ResultsOn conventional ultrasound, significant differences in tumor diameter were found between HEAML (4.0 ± 2.0 [SD] cm; range: 1.3–8.9 cm) and NBNC-HCC (8.4 ± 4.4 [SD] cm; range: 1.6-18 cm) (P < 0.001) as well as in degrees of enhancement during the portal (P = 0.001) and late phases (P = 0.003), contrast distribution (P < 0.001) and absence of pseudocaspule (P < 0.001). On CEUS, hyperenhancement during the arterial phase was observed in 21/22 (95.5%) HEAMLs and in 43/44 (97.7%) NBNC-HCCs (P > 0.999). Homogeneous enhancement was more frequent in HEAMLs (20/22; 90.9%) than in NBNC-HCCs (13/44; 29.6%) (P < 0.001). Pseudocapsule was observed in 0/22 HEAMLs (0.0%) and in 36/44 NBNC-HCCs (81.8%) (P = 0.017). A prolonged enhancement was observed in 5/22 HEAMLs (22.7%) and in 0/44 NBNC-HCCs (0.0%) (P < 0.001) during the late phase.ConclusionCEUS with sulphur hexafluoride microbubbles is helpful in discriminating between HEAML and NBNC-HCC. Homogeneous enhancement and lack of pseudocapsule are suggestive features for the diagnosis of HEAML. 相似文献
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目的 研究人肝细胞癌中肿瘤转移抑制基因nm23H1 的mRNA表达状况,并探讨其表达水平与肿瘤各项临床病理指标间的相关性。方法 应用半定量RTPCR 方法检测分析人肝细胞癌组织、相应癌旁肝组织中nm23H1 的mRNA表达。结果 15 例肝癌及癌旁肝组织RTPCR结果均为阳性,未见nm23H1 基因表达缺失或较大变异;肝癌组织中nm23H1 mRNA表达水平明显高于相应癌旁组织( P= 0-035);AFP阳性组nm23H1 mRNA表达水平明显高于AFP阴性组( P=0-005) 。结论 人肝细胞癌中nm23H1 基因mRNA的异常表达可能与肿瘤的恶性生物学特征密切相关。 相似文献
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Kamiyama H Toyama N Mori Y Miyazaki K Nagano M Yamada S Suminaga Y Konishi F 《Journal of Hepato-Biliary-Pancreatic Surgery》2002,9(6):759-763
We report a successfully managed case of far-advanced hepatocellular carcinoma (HCC) by intraarterial infusion therapy. A
55-year-old man was admitted to our hospital with abdominal pain and subileus. Abdominal ultrasonography, computed tomography,
and angiography revealed HCC with obstruction of the main portal vein due to tumor thrombus. Serum levels of α-fetoprotein
(AFP) and protein induced by vitamin K absence or antagonist-II (PIVKA-II) were elevated. Neoadjuvant chemotherapy was tried
with a course of low-dose cisplatin (CDDP) +5-fluorouracil (5-FU) intrahepatic arterial infusion through the indwelling catheter
via the subcutaneous reservoir port. After 7 weeks of administration (total dose CDDP 370 mg/5-FU 18.5 mg), the main tumor
size was effectively reduced. Serum levels of AFP and PIVKA-II decreased markedly. Adverse effects were tolerated. Following
the chemoinfusion therapy, posterior segmentectomy and thrombectomy were performed. Reconstruction of the portal vein was
not necessary because we removed the tumor thrombus without resecting the portal vein. The postoperative course was uneventful,
and the patient has been doing well more than 2 years after surgery, with no evidence of recurrence or metastasis. Preoperative
low–dose CDDP +5-FU intrahepatic arterial infusion therapy in combination with hepatic resection may be an effective treatment
for advanced HCC with portal vein tumor thrombus.
Received: December 31, 2001 / Accepted: June 17, 2002
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