The synchronization of respiration and swallow sounds with videofluoroscopy during swallowing

Simultaneous recording of adult subjects sipping small amounts of fluid from a cup have been obtained by videofluoroscopy together with feeding respiratory patterns and swallow sounds from the Exeter Dysphagia Assessment Technique (EDAT). These allowed visual representations of respiration and swallow sounds to be superimposed on a videofluoroscopy recording using a split-screen technique. Sequentially numbered, 1/50 sec, half-frame photographic prints were examined and schematic drawings of the relevant radiographs were made. These were superimposed on to the actual EDAT printed chart of the same swallow event, theri exact time relationship with respiration and cervical swallow sounds being preserved. The results allow events in the barium videofluoroscopy to be related to events in the feeding respiratory pattern and swallow sounds recorded by EDAT.     

曲肘式机构的优化设计

以功效系数为目标函数,相应地确定了设计变量和约束函数,对塑料注塑机合模机构的参数进行优化计算,提高了机构的综合性能。     

我国城市地下水水质污染状况研究进展

综述了我国城市地下水水质污染状况的研究进展     

术前静脉造影对静脉管壁及其吻合效应的实验研究

以动物实验模拟行静脉造影后,肉眼观察,并以透射电镜和扫描电镜动态观察经灌注固定的局部静脉管壁和内皮细胞的改变,发现造影剂回流的静脉管壁在较长的时间内处于扩张状态,同时穿刺注射造影剂的部位出现较严重的淤血和血栓形成。内皮细胞连接有较广泛裂开、剥离及内皮下组织暴露。在受损严重的区域还可见有微血栓形成。造影1天后内皮细胞受损最为严重,至第3天基本恢复。血管吻合实验表明,术前3天静脉造影不影响直径为2.5mm静脉的吻合通畅率。     

医疗纠纷的非诉讼解决方式-医疗纠纷ADR

由于在纠纷解决方面所表现出来的简便，经济，快捷，专业性及保密性强等优点，非诉讼纠纷解决方式（又可译为代替性纠纷解决方式）ADR（Alternative Dispute Resolution）逐渐成为许多国家和地区解决民事纠纷的一大趋势，我国现行医疗纠纷解决机制存在着较多的问题，有待于进一步的改善与完善，根据我国所面临的现实情况，将ADR引入医疗纠纷领域是一条快速，有效地解决医疗纠纷的途径，医疗纠纷的非诉讼纠纷解决方式主要包括仲裁，调解与和解，这3种纠纷解决方式各具特点，适用于不同情况下医疗纠纷的解决。     

Raman and UV–vis spectroscopic study of polyaniline membranes containing a bulky cationic additive

Electrically conducting soluble polyaniline (PANI), containing different amounts of a bulky lipophilic cationic additive, tridodecylmethylammonium chloride (TDMACl), was studied by Raman (λ_exc=780 nm) and UV–vis spectroscopy. PANI was made simultaneously electrically conducting and soluble with bis[4-(1,1,3,3-tetramethylbutyl)phenyl]phosphoric acid in dichloromethane. The PANI membranes were prepared by drop casting on glassy carbon or ITO substrates. Raman and UV–vis measurements were carried out in a 0.1 M CaCl₂ solution at potentials between 400 and ?600 mV (vs. SCE) at pH 6, or alternatively at the open circuit potential at pH 10. The results of Raman, UV–vis and cyclic voltammetric measurements confirm that the incorporation of TDMACl into the PANI membrane facilitates the oxidation and reduction of PANI.     

保留幽门间置空肠双腔代胃术临床研究

目的 探讨全胃切除术后保留幽门间置空肠代胃术的临床应用。方法 1987年至今，对60例胃癌患者临床应用保留幽门的间置空肠代胃术式，评估其疗效。结果 60例患者无手术死亡，术后幽门舒缩功能及代胃的食糜搅拌、贮存功能良好，无返流性食管炎、倾倒综合症、营养不良等并发症。结论 保留幽门的间置空肠双腔代胃术能明显地改善全胃切除术后患者的生活质量。     

腰椎间盘突出症CT诊断与三维瞬间牵引

目的 :探讨腰椎间盘突出症的 CT表观及三维瞬间牵引的治疗效果。材料与方法 :回顾分析经 CT及临床诊断为腰椎间盘突出症病例 16 7例的临床及 CT资料。结果 :16 7例腰椎间盘突出症表现为单个或多个椎间盘的突出 ,硬脊膜囊、硬膜外间隙及神经根受压等征象。经三维瞬间牵引后 6 5例 (38.9% )症状有不同程度缓解 ,其中 94例 (5 6 .3% )症状完全消失。结论 :CT是腰椎间盘突出症的有效诊断手段之一     

食管癌切除术并发胸导管损伤的早期诊断及治疗

我院1990年至1993年共施行食管癌切除术160例，术中胸导管损伤5例，发生率为2．1％，5例中3例于术中发现并及时处理，未发生乳糜胸，另2例于术后并发乳糜胸才诊断，经早期剖胸手术治愈,本文介绍了食管癌切除术并发胸导管损伤的早期诊治体会。     

CT对肝内,外阻塞性黄疸的鉴别诊断价值

笔者通过对３５例阻塞怀黄疸的ＣＴ所见，指出了胆道扩张征象可作为鉴别肝内、阻阻塞性黄疸的可靠指标，再结合临床及ＣＴ的初期征象，可更加提高其鉴别诊断准确率。本文对这些指标的可靠性进行重点讨论。提出了该特点是特别胆道管囊肿的重要指征，即后者的胆道扩张为局部性或节段性。本文对良、恶性病变所致的胆道扩张形态亦进行了对照分析，发现二阻之间无明显性差异。