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我们自1996．6～2003．6月应用鼻窦内窥镜经鼻腔进路治疗慢性泪囊炎36例共38侧，经临床观察取得满意效果，现报道如下： 相似文献
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1 临床资料应用美国 Stryker公司生产的鼻内窥镜手术治疗上颌窦疾病 6 6例 (92侧 ) ,其中男 3 5例 ,女 3 1例 ,年龄 1 6～ 6 8岁 ,平均 3 6岁。病情 :窦口鼻道复合体病变致上颌窦炎 47例 (73侧 ) ,牙源性上颌窦炎 9例 (9侧 ) ,上颌窦囊肿 1 0例 (1 0侧 )。2 治疗方法行筛漏斗切开、窦口鼻道复合体病变清除术 45侧 ,上颌窦口扩大术 2 2侧 ,下鼻道开窗术以清除上颌窦内的息肉或囊肿以及干酷样病变 1 3侧。内窥镜下柯——陆手术 (Endoscopic Cald well - Lucoperation) 1 2侧 ,用于清除上颌窦内广泛的粘膜病变 ,如多发性息肉、粘膜肥厚等。… 相似文献
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目的:评价鼻窦镜在喉部肿瘤手术中应用的临床价值.方法:对声带息肉42例,会厌囊肿5例患者,施行单独鼻窦镜下或鼻窦镜联合支撑喉镜下切除病变组织.术后随访3个月～1年.对47例患者的临床资料及结果进行回顾性分析.结果:47例患者术后46治愈,1例复发.治愈率97.8 %.临床效果显著,具有一定推广价值. 相似文献
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Chen L Tian H Chen J He ZG Tao SF Lokesh G Peng SY 《Journal of Zhejiang University. Science. B》2005,6(1):38-42
Objective: To observe the clinicopathological characteristics of gastric stump cancer (GSC) and evaluate the benefits of radical surgery of GSC. Methods: The clinicopathological characteristics and postoperative survival time of 37 GSC patients who underwent surgery were investigated retrospectively. The survival time was compared according to the type of surgical pTMN stage. Survival curves were traced by using Kaplan-Meier methods. Results: Most GSC (32/37) was detected in patients who had received Billroth Ⅱ reconstruction after partial gastrectomy for benign gastric disease. The lesser curvature side and the suture line of anastomosis were the most frequent sites where GSC occurred (27/37). Differentiated adenocarcinoma was the dominant histopathological type (24/37). The postoperative 5-year survival rate of early stage GSC patients (n=9) was significantly higher than advanced stage GSC (n=12) (55.6% vs 16.5%, xL2=1 1.48, P＜0.01). Five-year survival rate of 21 GSC patients with radical resection were 75% (3/4) for stage Ⅰ, 60% (3/5) for stage Ⅱ, 14.2% (1/7) for stage Ⅲ, and 0% (0/5) for stage Ⅳ respectively.The median survival time of 21 GSC patients who underwent radical resection was longer than those undergoing palliative operation (43.0m vs 13.0m, xL2=36.31, P＜0.01), the median survival time of stage Ⅳ patients with radical resection was 23.8months. Conclusions: Without remote metastasis, radical resection for GSC is possible, and is an effective way to improve the prognosis of GSC. Even in stage Ⅳ GSC, radical resection can still prolong the survival time. It is necessary for the patients with benign gastric diseases who received partial gastrectomy to carry out the endoscopy follow-up, especially in patients with Billroth Ⅱ reconstruction procedure at 15-20 years. 相似文献
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随着MSCT扫描技术的发展,薄层扫描图像被越来越多地应用于临床,由于薄层扫描图像具有更高的空间与时间分辨率,这为基于CT图像的虚拟内窥镜等后处理技术提供了更加广阔的应用前景.目前国内外对CT虚拟内窥镜的研究很多,尤其是在虚拟内窥镜的导航方法上存在一定的难度,目前的导航方法是(1)采用MPR图像的二维导航方法;(2)采用预先计算的规定路径导航.上述两种方法均存在不足.本文提出了一种直接三维导航的方法,该方法采用了一种改进的三维自适应容积重建算法,在此基础上,跟踪观察视点在体数据场三维笛卡尔坐标系中的运动方向与轨迹,同时可以在X,Y,Z三个自由度上反映和控制其轨迹与方向的改变.文中采用上述方法实现了三维导航的CT虚拟内窥镜功能,应用结果表明,该方法比常规的方法具有优越性. 相似文献
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Objective:To examine the values of endoscopic ultrasonography(EUS) on diagnosis and treatment of esophageal hamartoma.Methods:We compared and analyzed various kinds of imaging examinations such as barium esophagram,contrast-enhanced computed temography(CT)and conventional gastroscopy in retrospectively reviewing the clinical data of an esophageal hamartoma patient seen in our clinic in the First Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou,China.Having received various imaging examinations,this patient was finally diagnosed with esophageal hamartoma and underwent gastroscopic resection of hamartoma with the diagnostic information obtained from EUS.The patient had been regularly followed up for 13 months after treatment.Results:Barium esophagram,CT and conventional gastroscopy detected the lesion,but were unable to distinguish it from conlmon esophagopolypus and other submucosal lesions,and unable to determine etiopathogenisis.EUS detected the hamartoma and identified its intemal structure,echo,exact size,depth of invasion,origin and the relationship between adjacent tissues and organs,differentiating the lesion from other submucosal tumors and clearly defining the diagnosis.EUS-guided fine needle aspiration(FNA) also helped to identify the etiological diagnosis.Conclusion:EUS was superior to other imaging means in diagnosis and treatment of hamartoma. 相似文献
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本文以胶囊状体内医疗微型机器人为研究对象,着眼于无线胶囊内窥镜的外磁场主动驱动,在分析人体消化道能动性特点的基础上,设计了一种外磁场驱动方案,建立了胶囊状微机器人外磁场驱动的动力学模型,同时给出了驱动控制系统方案设计,为微型机器人在人体消化道内进行无损检查和微创手术提供了一种设计思路。 相似文献
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文章介绍依据驱动类型划分的具代表性的线缆式内窥镜诊疗机器人和无线药丸式内窥镜系统的研制情况,对体内内窥镜诊疗微型机器人的研究方向和前景进行了讨论。 相似文献