125碘放射微粒植入治疗晚期上颌窦癌一例

患者男性,48岁,右侧鼻塞1年,加重并伴右侧头面部痛,流鼻涕、流眼泪半年.患者入院时全身情况好,生命体征正常,心肺腹部检查无异常.双耳及咽喉部检查无异常.外鼻端正,双侧鼻前庭无糜烂,鼻粘膜无充血及红肿.鼻中隔向右侧鼻腔偏曲.右侧鼻腔中鼻道有新生物突出,色粉红,质硬,弹性及收缩性差,表面粗糙,触之易出血,鼻腔有少量粘液脓性分泌物.     

放射线联合p53基因及内皮抑素治疗小鼠前列腺癌皮下移植瘤

Objective To test the hypothesis that p53 gene therapy combined with endostatin can enhance tumor response to radiation therapy of RM-1 mouse xenograft prostate cancer and to investigate its mechanism. Methods A mouse prostate cancer model was established. Then mice with xenograft tumor were randomly divided into group A (control), B (radiation), C (radiation and rAdp53), D (radiation and rh-endostatin) and E (radiation and rAdp53 and rh-endostatin). On day 1, rAdp53 was injected intra-tumorously with 1 × 1010 vp per animal to group C and E. From day 1 to 14, rh-endostatin was given 15 mg/kg intraperitoneally daily to group D and E. On day 4 single fraction of 15 Gy was given to tumors in groups B, C, D and E. Normal saline was injected intra-tumorously or intraperitoneaUy accordingly as control. No treatment was done to group A. Tumor volume was measured daily. Samples were collected on Days 5, 10 and 15. Ki67, CD31, p53 and VEGF were detected by means of immunohistochemistry. Results (1) Radiation alone, radiation combined with intra-tumorous injection of Adp53 and/or intraperitoneal injection of rh-endostatin resulted in tumor growth arrest of RM-1 cells in vivo (P = 0.000). Radiation combined with both rAdp53 and rh-endostatin was the most effective treatment (P < 0.05). (2) All the four treatment groups had a decreased expression of mutant type P53 (P = 0.000). The expression of Ki67 in groups B and C were equal (P 0.05) and increasing (P = 0.000), respectively. Group D had a up-down-up curve (P < 0.05), but group E had a up-down one. On day 5 the expresion of VEGF in group E was the lowest (P < 0.05). An increased expression of MVD compared with the control was shown, and MVD in groups C, D and E were always higher than that in the control (P < 0.05). Conclusions The limitation of radiotherapy could be overcome by combination with beth p53 gene therapy and endostatin on the growth of mouse prostate cancer cell. Radiation, rAdp53 and endostatin have their own role but they can be interacted with each other.     

自己动手组建“Mini”PACS网

2003年，作者所在科室购买了两台使用多丝正比室探测器（Multi—Wire Proportional Chamber MWPC）的线扫描式直接数字化X射线机（DR），实现了科室无胶片化管理，完成了由传统放射向数字化放射的过渡。     

中药对大鼠辐射损伤防护作用的实验研究

目的探讨中药当归、川芎、黄芪、丹参提取液对大鼠放射性骨髓损伤的防护作用.方法雄性SD大鼠60只,随机分为正常对照组、模型组、中药组,每组6只,在相同条件下饲养2周,模型组和中药组大鼠给予6.0 Gy 60Co γ射线一次性全身照射,继续饲养1周处死全部动物并取材.用骨髓细胞计数法计数骨髓有核细胞数,用Western blot法测定血管内皮生长因子（vascularendothelialgrowth factor,VEGF）、血小板衍生生长因子（ptatelet derived growth factor,PDGF）的蛋白含量.结果与正常对照组比较,模型组大鼠的骨髓有核细胞数、VEGF、PDGF蛋白含量明显减少（P＜0.01）,与模型组比较,中药组大鼠的骨髓有核细胞数、VEGF、PDGF蛋白含量明显增加（P＜0.01或P＜0.05）.结论中药当归、黄芪、川芎、丹参对大鼠放射性骨髓损伤有一定防护作用.     

颈椎病自疗枕的发明与创造

我是从1980年开始搞放射技术工作的，到1988年这八年的时间里，我发现就颈部以及肩背部不适、手臂发麻发胀、头晕目眩。等症状来我科进行颈椎摄影的病人，占的比例特别多，而且在X线照片上80％以上显示生理曲度有不同程度地变直，甚至生理曲度向相反的方向弯曲，使椎问隙前窄后宽，出现椎间盘脱的征象，而导致颈椎病的发生。     

热带寄生虫感染的胸部表现

寄生虫感染遍及全世界，可引起较高的发病率和死亡率。讨论一些常见和少见热带寄生虫感染病累及胸部的X线平片和CT表现，介绍与之相关流行病学、临床和病理生理学的特征。     

用99Tcm-HL91评价鼠心肌缺血模型

目的 探讨乏氧心肌显像剂99Tcm-4,9-二氮-3,3,10,10-四甲基十二烷-2,11-二酮肟(HL91)用于诊断实验性缺血心肌的价值.方法 建立大鼠心肌在体缺血再灌注模型,采用体外放射自显影法检测正常对照组(6只)、缺血再灌注组(8只)及无再灌注组(8只)鼠心肌对99Tcm-HL91的摄取.结果 对照组和无再灌注组心肌未见局灶性放射性浓聚,再灌注组心肌非坏死区有较高放射性浓聚,与正常心肌组织的摄取比值为1.634±0.354.结论 99Tcm-HL91表现出较强的亲乏氧组织特性,能较好区分存活和梗死心肌.     

乳腺癌前哨淋巴结活检放射安全性研究

目的 探讨乳腺癌前哨淋巴结活检术（sentinel lymph node biopsy,SLNB）的放射安全性.方法 采用热释光剂量计（thermoluminescent dosimeters,TLD）检测在SLNB过程中患者乳房注射部位、胸腺、盆腔性腺及医务人员优势手食指、胸腺、盆腔性腺、眼晶体接受的放射线剂量.2006年10月至2007年7月连续检测行乳腺单纯切除/保留乳房＋SLNB的乳腺癌患者40例.结果 患者乳房注射部位的吸收剂量最大（5.946&#177;5.023）mSv,显著高于胸腺及盆腔的吸收剂量（均P=0.000）.主刀医师、第一助手、器械护士各部位核素吸收剂量差异无统计学意义（均P＞0.05）,远远低于我国卫生部确定的放射卫生防护基本标准.依据该标准,术者每年完成约1000台SLNB手术在放射安全性方面是安全的.结论 核素法SLNB对患者和医务人员是安全的,不需要进行防护.     

中华放射学会2005年第八届全国腹部影像学学术大会纪要

第八届全国腹部影像学学术大会于2005年6月9日至12日历时3天时间，圆满地完成了全部会议日程。本次大会由中华放射学会腹部学组主办，由中国医科大学盛京医院(附属第二医院)承办，得到了中国医科大学及当地政府的大力支持和协助，同时也得到介入、磁共振等兄弟学组的支持。