A data model applied to the knowledge-based ICAS

Image-guided computer aided surgery system (ICAS) contributes to safeness and success of surgery operations by means of displaying anatomical structures and showing correlative information to surgeons in the process of operation. Based on analysis of requirements for ICAS, a new concept of clinical knowledge-based ICAS was proposed. Designing a reasonable data structure model is essential for realizing this new concept. The traditional data structure is limited in expressing and reusing the clinical knowledge such as locating an anatomical object, topological relations of anatomical objects and correlative clinical attributes. A data structure model called mixed adjacency lists by octree-path-chain (MALOC) was outlined, which can combine patient's images with clinical knowledge, as well as efficiently locate the instrument and search the objects' information. The efficiency of data structures was analyzed and experimental results were given in comparison to other traditional data structures. The result of the nasal surgery experiment proves that MALOC is a proper model for clinical knowledge-based ICAS that has advantages in not only locating the operative instrument precisely but also proving surgeons with real-time operation-correlative information. It is shown that the clinical knowledge-based ICAS with MALOC model has advantages in terms of safety and success of surgical operations, and help in accurately locating the operative instrument and providing operation-correlative knowledge and information to surgeons in the process of operations.     

测定游离甲状腺素指数观察甲功状态与乳腺癌的关系

我们测定了327例30岁以上健康妇女的FT_4I值,测定了124例(30岁以上女性)乳腺良性肿瘤患者和乳腺癌患者的FT_4I值。从我们测定的结果来看,FT_4I值的变化同年令有关,年令愈高,FT_4I愈低。将乳腺良性肿瘤患者的FT_4I值同乳腺癌患者的FT_4I值相比较,我们认为乳腺癌患者FT_4I值(40岁以上年令组)显示偏低倾向。     

桥本甲状腺炎合并不孕症中医治疗概述

桥本甲状腺炎(HT)是自身免疫性甲状腺疾病,多发于30~50岁女性,早期没有症状。随着认识的深入,发现HT与不孕症有密切联系。有研究认为桥本甲状腺炎引起的女性排卵功能障碍、月经失调及不孕不育等约占下丘脑-垂体性卵巢功能紊乱的5%~15%。1病因病机桥本甲状腺炎合并不孕症的机理尚未完全清楚,有学者认为下丘脑-垂体-甲状腺轴与下丘脑-垂体-性腺轴相互影响,桥本甲状腺炎导致的甲状腺功能异常会引起性激素结合球蛋白和性激素水平的变化,使下丘脑-垂体-卵巢轴功能异常,导致内分泌系统的调节功能障     

过氧化物酶抗体诊断自身免疫甲状腺疾病临床价值的探讨

目的 通过比较自身免疫甲状腺疾病(ATD)患者血清中过氧化物酶抗体(TPO-Ab)和甲状腺微粒体抗体(TMAb)水平，探讨测定TPO-Ab的临床价值。方法 采用放射免疫法同步测定200例ATD、50例非ATD、30例健康对照血清中甲状腺过氧化物酶抗体和甲状腺微粒体抗体的浓度。结果 ①ATD患者血清中TPO-Ab浓度显著升高(P＜0.01)。②桥本甲状腺炎患者甲功的变化与体内TPO-Ab浓度有关，可在一定程度上提示ATD的预后。③TPO-Ab浓度的变化与TMAb变化一致(r=0.83,P＜0.01)，但用TPO-Ab作为诊断桥本甲状腺炎的指标较TMAb更具敏感性和特异性(P＜0.01)。结论 测定TPOAb是诊断自身免疫甲状腺疾病敏感、特异的指标。     

天津港口医院救灾医疗队队员载誉归来

<正>按照卫生部对赴川救援医疗队人员和专业进行调整的统一部署,适当调回部分外科等专业人员的要求,天津港口医院随天津市第二批赴川抗震救灾医疗队12名队员圆满完成各项救援任务,     

龙胆泻肝汤治疗皮外科疾病验案举隅

龙胆泻肝汤《医宗金鉴》方由龙胆草、黄芩、栀子、柴胡、泽泻、车前子、木通、生地黄、当归、甘草组成,功效为泻肝胆经湿热,主治肝胆实火所引起的胁痛、口苦、目赤、耳聋、耳肿,肝经湿热下注而致的小便淋浊、阴肿、阴痒、囊痈、妇女带下等。笔者常用龙胆泻肝汤化裁治疗皮外科疾病收效良好,介绍如下。1带状疱疹吴某,男,58岁,2011年8月16日初诊。5天前左侧胸前腋下及后背部灼热疼痛,周身乏力,继之局部皮肤     

甲亢病人的饮食适宜

1前言 甲亢,其全称为甲状腺功能亢进.目前我国发病人数逐年增多,甲亢引起的一系列病症如神经过敏、手指微抖、易激动、发怒或惊恐,常失眠、怕热、多汗、心动过速及由于眼睑肌收缩痉挛造成的突眼等一系列眼症,给病人带来的痛苦是长期的、反复的、慢性的.治疗甲亢虽然药物以及放射性的治疗对甲亢有一定的疗效,但持之以恒的饮食调节,尤其是对碘的摄入控制是治疗甲亢的关键所在.     

腹腔外科感染的抗生素疗法

腹腔外科感染病人,抗生素疗法占有重要地位。252例腹腔脓液普通培养,24.2%无菌生长。培养出的菌丛中,绝大多数为革兰氏阴性细菌,大肠艾希氏菌占32.5%。选用抗生素应考虑:①菌丛及其联合存在的多样性;②药物进入胆汁的量与速度;③血与组织中的浓度;④药物的抗菌谱,毒性和价格。