弹簧芯状活检针在CT导向经皮肝穿刺活检中的应用

目的 探讨CT引导下应用弹簧芯状活检针行经皮肝穿刺的临床应用价值。方法 肝脏占位性病变患者18例，所有病例均在CT引导下穿刺到达预定位置，使用弹簧芯状活检针穿刺取材。穿刺部位分别为：肝右叶12例。肝左叶5例，肝尾叶1例。病灶直径2．14cm。结果 一次穿刺成功率100％。17例肝脏占位性病变得到病理诊断，原发性肝癌11例，转移性腺癌5例，局灶结节性增生1例，活检确诊率94．4％；1例未找到病变组织。穿刺后出现肝被膜下少量积血和肝区疼痛伴一过性低血压各1例。结论 CT引导下应用弹簧芯状活检针行经皮肝穿刺是诊断肝脏占位性病变的一种安全、准确的方法。     

肿瘤Ki-67抗原HLA-A2限制性细胞毒性T淋巴细胞表位的鉴定

Objective To identify the HLA-A2-restricted CTL epitopes encoded by antigen segment of Ki-67 for preparation of tumor vaccines. Methods Two epitope prediction databases ( BIMAS and SYFPEITHI) were used to predict the epitopes of Ki-67, and 7 peptides were synthesized as the candi-dates. The prediction was evaluated by peptide-binding test. ELISPOT was used to inspect the IFN-γ secre-ted by CTLs in order to reflect the immunogenicity of the peptides. Results The purities of synthetic pep-tides and positive control peptide were all above 95%. Peptide-binding test displayed that LQGETQLLV (280-288) of Ki-67 could bind with HLA-A2 molecule more strongly. ELISPOT assay displayed that LQGETQLLV could induce activation of specific CTLs. Conclusion LQGETQLLV (280-288) might be the HLA-A2-restricted CTL epitope of Ki-67 antigen.     

肿瘤Ki-67抗原HLA-A2限制性细胞毒性T淋巴细胞表位的鉴定

Objective To identify the HLA-A2-restricted CTL epitopes encoded by antigen segment of Ki-67 for preparation of tumor vaccines. Methods Two epitope prediction databases ( BIMAS and SYFPEITHI) were used to predict the epitopes of Ki-67, and 7 peptides were synthesized as the candi-dates. The prediction was evaluated by peptide-binding test. ELISPOT was used to inspect the IFN-γ secre-ted by CTLs in order to reflect the immunogenicity of the peptides. Results The purities of synthetic pep-tides and positive control peptide were all above 95%. Peptide-binding test displayed that LQGETQLLV (280-288) of Ki-67 could bind with HLA-A2 molecule more strongly. ELISPOT assay displayed that LQGETQLLV could induce activation of specific CTLs. Conclusion LQGETQLLV (280-288) might be the HLA-A2-restricted CTL epitope of Ki-67 antigen.     

颈胸段气管外伤性断裂及成形术后狭窄二例

外伤性气管断裂多见于严重的胸部闭合性损伤,而发生于颈部外伤者少见,其治疗原则是急诊、早期气管修补和成形术.2006年7月-2009年8月我院介入放射科、胸心外科和耳鼻喉科共同参与诊治2例颈胸段气管断裂患者.现报告如下.     

Budd-Chiari综合征中文命名专家建议

Budd-Chiari综合征是指肝静脉和/或肝静脉开口上方之下腔静脉血液回流障碍导致肝脏淤血引起的门脉高压和/或下腔静脉高压而出现的一系列临床症状和体征。在我国大量病例以肝静脉开口处和肝静脉开口上方之下腔静脉隔膜形成为主要病理变化,与西方国家以肝静脉血栓形成为主病理变化存在较大差异,同时隔膜形成的病因和发病机制至今不清...     

肿瘤Ki-67抗原HLA-A2限制性细胞毒性T淋巴细胞表位的鉴定

Objective To identify the HLA-A2-restricted CTL epitopes encoded by antigen segment of Ki-67 for preparation of tumor vaccines. Methods Two epitope prediction databases ( BIMAS and SYFPEITHI) were used to predict the epitopes of Ki-67, and 7 peptides were synthesized as the candi-dates. The prediction was evaluated by peptide-binding test. ELISPOT was used to inspect the IFN-γ secre-ted by CTLs in order to reflect the immunogenicity of the peptides. Results The purities of synthetic pep-tides and positive control peptide were all above 95%. Peptide-binding test displayed that LQGETQLLV (280-288) of Ki-67 could bind with HLA-A2 molecule more strongly. ELISPOT assay displayed that LQGETQLLV could induce activation of specific CTLs. Conclusion LQGETQLLV (280-288) might be the HLA-A2-restricted CTL epitope of Ki-67 antigen.     

“双管法”一体式倒Y型支架置入术在气管复合狭窄治疗中的初步应用

目的探讨双管法一体式倒Y型支架置入术治疗气管复合狭窄的可行性和疗效。资料与方法在透视下对2例气道复合狭窄的患者先经鼻腔置入通气导管,再经口-咽-气管释放气道支架。结果 2例患者支架置入均一次成功,在气管支架置入过程中,未出现出血、窒息。术后患者呼吸困难明显改善,气促评级由Ⅳ级改善为0级或Ⅰ级,脉氧饱和度(SPO2)由高流量吸氧时的70%、75%分别提高至自然呼吸时的90%、95%。结论在一体式倒Y型气管支架置入过程中,预先留置通气导管以维持呼吸和供氧,缓解了患者由于插入支架输送器引起和加剧的呼吸困难,能够更好的配合,使得气管支架放置更加安全,其技术可行,操作简单,值得临床推广应用。