藏医真布病与中医痹症的对比探讨

中医学和藏医学同属于中国传统医学,拥有各自独特的文化背景及理论体系,二者对疾病的诊断、辨证、治疗手段都有各自的特点。藏医真布病（类似于现代医学中的类风湿性关节炎,属于中医痹症范畴）作为高原地区的常见病及多发病,具有较高的致残率。藏医学对真布病的认识不仅理论上有据可循,其疗效经过长期的临床验证,药物疗法与药浴等外治疗法结合更是具有毒副作用小、效果显著、安全经济等优点。本文以藏医和中医的理论背景为基础,通过藏医真布病、中医痹症在病因病机及治疗手段等方面的对比,讨论藏医药治疗真布病的优势与特点,提出对藏医未来发展思路的建议。     

Transcatheter arterial chemoembolization combined with CT-guided percutaneous thermal ablation versus hepatectomy in the treatment of hepatocellular carcinoma

Introduction:Transcatheter arterial chemoembolization (TACE) plus thermal ablation has been widely used recently in the treatment of hepatocellular carcinoma (HCC). In this study, we aimed to compare r...     

Emulating a trial of joint dynamic strategies: An application to monitoring and treatment of HIV-positive individuals

Decisions about when to start or switch a therapy often depend on the frequency with which individuals are monitored or tested. For example, the optimal time to switch antiretroviral therapy depends on the frequency with which HIV-positive individuals have HIV RNA measured. This paper describes an approach to use observational data for the comparison of joint monitoring and treatment strategies and applies the method to a clinically relevant question in HIV research: when can monitoring frequency be decreased and when should individuals switch from a first-line treatment regimen to a new regimen? We outline the target trial that would compare the dynamic strategies of interest and then describe how to emulate it using data from HIV-positive individuals included in the HIV-CAUSAL Collaboration and the Centers for AIDS Research Network of Integrated Clinical Systems. When, as in our example, few individuals follow the dynamic strategies of interest over long periods of follow-up, we describe how to leverage an additional assumption: no direct effect of monitoring on the outcome of interest. We compare our results with and without the “no direct effect” assumption. We found little differences on survival and AIDS-free survival between strategies where monitoring frequency was decreased at a CD4 threshold of 350 cells/μl compared with 500 cells/μl and where treatment was switched at an HIV-RNA threshold of 1000 copies/ml compared with 200 copies/ml. The “no direct effect” assumption resulted in efficiency improvements for the risk difference estimates ranging from an 7- to 53-fold increase in the effective sample size.     

83例眼化学腐蚀伤和热烧伤的自体血清治疗

目的探讨自体血清对眼化学腐蚀伤和热烧伤的治疗。方法对2007年3月—2014年8月该院收治的83例眼化学腐蚀伤和热烧伤的自体血清治疗效果的分析。结果该组83例经自体血清治疗后痊愈者78例(108眼)占94%,占伤眼的95.5%,基本治愈者4例(5眼)占4.8%,占伤眼的4.4%,好转1例。结论自体血清具有能促进创面迅速愈合,清除坏死组织,同时也能防止睑球粘连的形成。     

浅析废玻璃资源化处理新技术及其在我国的应用前景

介绍了国内外废旧玻璃的产生及回收利用现状,分析了废玻璃资源化处理方案,研究了利用废玻璃制备泡沫玻璃建筑保温板材的生产线工艺流程及成本,并分析了泡沫玻璃产品在民用建筑保温隔热等方面的应用前景。     

Wideband Self‐Grounded Bow‐Tie Antenna for Thermal MR

The objective of this study was the design, implementation, evaluation and application of a compact wideband self‐grounded bow‐tie (SGBT) radiofrequency (RF) antenna building block that supports anatomical proton (¹H) MRI, fluorine (¹⁹F) MRI, MR thermometry and broadband thermal intervention integrated in a whole‐body 7.0 T system. Design considerations and optimizations were conducted with numerical electromagnetic field (EMF) simulations to facilitate a broadband thermal intervention frequency of the RF antenna building block. RF transmission (B₁⁺) field efficiency and specific absorption rate (SAR) were obtained in a phantom, and the thigh of human voxel models (Ella, Duke) for ¹H and ¹⁹F MRI at 7.0 T. B₁⁺ efficiency simulations were validated with actual flip‐angle imaging measurements. The feasibility of thermal intervention was examined by temperature simulations (f = 300, 400 and 500 MHz) in a phantom. The RF heating intervention (P_in = 100 W, t = 120 seconds) was validated experimentally using the proton resonance shift method and fiberoptic probes for temperature monitoring. The applicability of the SGBT RF antenna building block for in vivo ¹H and ¹⁹F MRI was demonstrated for the thigh and forearm of a healthy volunteer. The SGBT RF antenna building block facilitated ¹⁹F and ¹H MRI at 7.0 T as well as broadband thermal intervention (234‐561 MHz). For the thigh of the human voxel models, a B₁⁺ efficiency ≥11.8 μT/√kW was achieved at a depth of 50 mm. Temperature simulations and heating experiments in a phantom demonstrated a temperature increase ΔT >7 K at a depth of 10 mm. The compact SGBT antenna building block provides technology for the design of integrated high‐density RF applicators and for the study of the role of temperature in (patho‐) physiological processes by adding a thermal intervention dimension to an MRI device (Thermal MR).     

Mechanical,Thermomechanical and Reprocessing Behavior of Green Composites from Biodegradable Polymer and Wood Flour

The rising concerns in terms of environmental protection and the search for more versatile polymer-based materials have led to an increasing interest in the use of polymer composites filled with natural organic fillers (biodegradable and/or coming from renewable resources) as a replacement for traditional mineral inorganic fillers. At the same time, the recycling of polymers is still of fundamental importance in order to optimize the utilization of available resources, reducing the environmental impact related to the life cycle of polymer-based items. Green composites from biopolymer matrix and wood flour were prepared and the investigation focused on several issues, such as the effect of reprocessing on the matrix properties, wood flour loading effects on virgin and reprocessed biopolymer, and wood flour effects on material reprocessability. Tensile, Dynamic-mechanical thermal (DMTA), differential scanning calorimetry (DSC) and creep tests were performed, pointing out that wood flour leads to an improvement of rigidity and creep resistance in comparison to the pristine polymer, without compromising other properties such as the tensile strength. The biopolymer also showed a good resistance to multiple reprocessing; the latter even allowed for improving some properties of the obtained green composites.     

浅谈应用红外热成像技术早期诊断糖尿病足的策略

糖尿病足早期症状不明显,待明确诊断时病程多已步入中后期阶段,严重威胁民众健康。红外热成像技术作为一种医用功能性检测技术,能在人体组织发生结构性病变之前,敏感地发现其功能性改变导致的体表温度异常。基于中医学视角,借用计算机辅助诊断系统及属性篇序结构图,可以为糖尿病足红外热图的多角度、多维度解读提供全新思路,突破传统西医解剖学视角难以全面解读热图异常规律的瓶颈,也为红外热成像技术的应用拓宽视野。