Classification of human brain tumours from MRS data using Discrete Wavelet Transform and Bayesian Neural Networks

The diagnosis of brain tumours is an extremely sensitive and complex clinical task that must rely upon information gathered through non-invasive techniques. One such technique is Magnetic Resonance Spectroscopy. In this task, radiology experts are likely to benefit from the support of computer-based systems built around robust classification processes. In this paper, a Discrete Wavelet Transform procedure was applied to the pre-processing of spectra corresponding to several brain tumour pathologies. This procedure does not alleviate the high dimensionality of the data by itself. For this reason, dimensionality reduction was subsequently implemented using Moving Window with Variance Analysis for feature selection or Principal Component Analysis for feature extraction. The combined method yielded very encouraging results in terms of diagnostic discriminatory binary classification using Bayesian Neural Networks. In most cases, the classification accuracy improved on previously reported results.     

基于IEEE 11073标准的脉搏信息远程监测系统实现

随着医疗科技的迅猛进步,病人可以在家中进行重点监护.医疗器械种类繁多,各自有不同的连接方式.为了改善此状沉ISO、IEEE及CEN等标准组织分别对医疗器械提出标准.本研究遵循医疗仪器间的互相通讯的标准ISO/IEEE11073-20601,致力于实现遵循统一标准的远程医疗监测系统.     

基于RFID技术的烟草物流系统分析与设计

通过分析RFID技术的发展和应用现状,阐述了供应链管理中引入RFID的意义。以烟草物流为背景,基于RFID技术的应用,分析了物流系统的设计目标和原则,提出了系统架构设计及RFID在关键环节的应用,探索设计了具有物联网全面感知、全程控制特征的物流系统模式。     

Capacitive micromachined ultrasonic transducer (CMUT) arrays for medical imaging

Capacitive micromachined ultrasonic transducers (CMUTs) bring the fabrication technology of standard integrated circuits into the field of ultrasound medical imaging. This unique property, combined with the inherent advantages of CMUTs in terms of increased bandwidth and suitability for new imaging modalities and high frequency applications, have indicated these devices as new generation arrays for acoustic imaging. The advances in microfabrication have made possible to fabricate, in few years, silicon-based electrostatic transducers competing in performance with the piezoelectric transducers. This paper summarizes the fabrication, design, modeling, and characterization of 1D CMUT linear arrays for medical imaging, established in our laboratories during the past 3 years. Although the viability of our CMUT technology for applications in diagnostic echographic imaging is demonstrated, the whole process from silicon die to final probe is not fully mature yet for successful practical applications.     

膜法富氧在国内应用新进展

膜法富氧及其助燃技术的应用非常广泛。主要介绍了膜法富氧技术在国内玻璃窑、锅炉、注汽炉、热风炉、医疗保健和FCC富氧再生等方面应用的最新进展。     

重视心理因素在临床中的作用

~~重视心理因素在临床中的作用@李清华!400042重庆$重庆石油高等专科学校 @周宇玲$铁马集团职工医院~~~~     

甲壳素、壳聚糖及其衍生物在医药领域的应用

对近年来甲壳素、壳聚糖及其衍生物在医药领域的应用研究进行了综述．     

用混合弹性模型解决图象变形匹配问题

由于用传统的刚体匹配方法难以解决待匹配图象之间的结构差异 ,因此需要引入变形模型来进行图象的非刚体匹配 .为此提出了一种利用混合弹性模型 (HEM)来解决图象变形匹配问题的新方法 .该方法不需要预先提取图象的特征 ,而是直接利用匹配图象之间的灰度信息来实现图象之间的匹配 .匹配时 ,首先通过基于主轴的方法来实现两幅图象之间的全局仿射匹配 ;然后利用线性弹簧网模型来求取两幅图象之间的相关性 ,并进一步利用薄板样条模型来实现两幅图象的变形匹配 .该方法在匹配过程中还采取了多分辨率匹配策略 ,合成图象和医学脑图象的实验结果表明 ,该方法是有效的     

预测模型在军事控制系统中的应用

军事后勤系统是一类控制复杂的大系统，控制理论为复杂大系统提供了一个有效的控制方法。本文首先介绍了一个基本的军事后勤物流，然后从工程控制理论的角度分析了军事决策过程。并对军事系统预测模型控制器及其在后勤系统中的应用进行了探讨研究。     

Application of the active shape model in a commercial medical device for bone densitometry

Osteoporosis is a common disorder characterised mainly by low bone mineral density (BMD), and leading to an increased risk of fracture. We have developed a new device that estimates BMD from ordinary hand radiographs. A crucial element of this method is the reconstruction of the metacarpals. This paper describes how this was solved using the active shape model (ASM). Standard ASM is unable to locate the metacarpal shafts in the direction along the bones. Therefore ASM was extended with a translation operator, which solved the problem. A hierarchical filtering method was used to construct a sufficient list of initial guesses for the ASM. The performance of ASM and the experience with the integration of ASM in a commercial medical device is reported. The ASM achieves 99.5% reconstruction success and is able to validate its own reconstruction in 97% of the cases. The system (Pronosco X-posure system, version 2.0) has been approved by the FDA, and more than 100 units have been sold.The concept of the translation operator is generalised to the more active shape model (MASM), which also allows a natural integration with the active appearance model.