EMPI在医院的建立与应用

病人主索引信息,是病人在院信息的入口点及核心,它直接影响医疗结果数据的准确性,并涉及到医疗信息的交换性.所有登记系统将在EMPI根据几个标识符获取病人资料.有时候,数据获取是在数据录入登记系统之前,但也有一些例子是在数据完成录入之后.     

基于USB接口的个人健康信息采集终端

为适应医疗模式的改变和医疗健康行业的发展,满足人们对于个人健康状况关注的需要,基于USB接口,我们设计了一套呼吸与血压的个人健康信息采集终端系统.该系统由信息采集模块、个人计算机以及系统软件构成,信息采集模块采用统一电路模式搭建,简化了系统设计,并能实时采集个人的呼吸、血压等生理参数.信息采集模块通过USB接口传输到计算机,实现了个人健康信息的采集、数据存储、远程辅助诊断和健康信息打印等功能.实验证明,该系统运行稳定,信息采集准确,具有应用灵活、方便的优点.     

Excel在医疗数据监控中的应用

“军字1号”医院信息管理系统最显著的特点是以病人信息为中心,信息的覆盖面非常大,信息量每天以倍数关系在增长。同时,系统具备在信息发生地实时采集数据这样一个强大的功能,比如病案首页信息内容是在住院登记处、病房、病案室逐步录入完成的,与信息的事后录入相比,减轻了工作量。但由于数据源具有类型多、内容多、分布点多和采集人员多的特殊性,使得录入的信息质量难以保证,如何顺应工作模式的转换,确保原始医疗数据、信息录入准确、及时等一系列问题引起了医院各级领导的高度重视,因此,医疗数据监控室应运而生。 专职监控人员利用系统中的“数据核查”软件分别对“住院卡片项目”、“临床医师录入项目”、“病案首页编目项目”、采取不定时的核查监控;同时相继对“床位信息”、“退院病人信息”、“划价收费信息”、“门、急诊工作量信息”、“手术室工作量信息”、以及“住院病人费用信息”逐一开展     

探讨Array 2905 Digitizer 在数字化教学中的作用

数字化是多媒体和网络技术为核心的信息技术的前提 ,信息技术是以数字化为支柱,对有价值的传统信息进行模数转换是必不可少的.作为模数转换的工具,Digitizer是医学图像数字化的最佳选择之一.我院在建立PACS系统中配备了Array 2905 Digitizer.Digitizer可对传统有价值的医学影像胶片和外院罕见的疑难病例的影像胶片进行扫描输入,并将模拟信息转化成数字化信息,使其成为PACS系统(Picture Archiving and Communication System,它包括各种医学影像信息采集、存储、报告、输出、管理、查询等.)数据库和医疗教学科研工作中的一个重要部分.     

EMPI在医院的建立与应用

病人主索引信息,是病人在院信息的入口点及核心,它直接影响医疗结果数据的准确性,并涉及到医疗信息的交换性。所有登记系统将在EMPI根据几个标识符获取病人资料。有时候,数据获取是在数据录入登记系统之前,但也有一些例子是在数据完成录入之后。     

建立复核站,确保录入数据准确

医院医疗信息网络系统“军卫一号”运行中，最棘手的问题是各工作站录入数据欠准，错输、漏输、重复输入现象屡禁不止，以致出现大量手工计价，直接影响计算机后台自动划价，虽然采用了一些行政方法查处，但收效甚微。为此，我院建立了微机录入数据复核站，分内科病区、外科病区、干部病房、妇幼保健中心四个站点，各站点安装了数据复核专用微机和院内电话，由卫生经济管理科选派得力复核员，对照本院下发的《规范医嘱手册》和临床科室的医嘱本，每天复核所有住院病人的医嘱和检查申请项目，及时发现问题并通知科室更改录入的错误数据，确保…     

基于医院信息系统的多学科诊治肿瘤数据库系统设计

目的针对肿瘤的多中心诊疗、病历数据繁杂等特点,设计了一种对肿瘤临床数据可进行有效管理、信息共享、查询统计及数据挖掘的数据库系统。方法通过导出医院信息系统（hospital information system,HIS）中所需的信息到中间数据库,运用ASP．NET技术对中间库进一步过滤,将数据整理为具有结构化、标准化字段的肿瘤数据库。结果本系统实现了病历分析、统计,并采用基于模糊数学的方法实现了临床辅助决策。结论该系统可规范医生诊治流程,有利于多科室共同治疗,体现了多学科一体化模式在诊治肿瘤中的医疗价值和社会价值。     

“数据核查与上报服务系统”的设计开发与应用效果

数据上报服务系统通过对数据自动提取和补充录入方式收集资料,以分段自动逻辑校验、计算校验和非空校验等方式核查数据,最终分类生成上报文本,实现异地网段统一标准数据上报。1　系统目标本系统的设计目标一是满足上级管理部门需求,对目前医院信息系统各网络段间统计信息数据,以计算机网络化为技术支持的“医院信息系统”远程网段的进行信息分储,实施超级汇总是各信息级管理部门的迫切需求。二是满足医院管理者需求,通过网络获取病历全程信息并对其实行分段数据实时核查、自动校验、环节控制是提高病历首页文书质量。2　系统设计2.1　技术方…     

基于MSP430及安卓系统的老年人生理信息监护系统

目的：随着老龄化的不断加剧,老年人的监护需求量也在不断的增加,为了解决相应的老年人监护问题,介绍了一种基于MSP430单片机和安卓系统结合的老年人生理信息采集监护系统的工作原理。方法：以MSP430为核心,配以血氧、体温等传感器模块对老年人生理信息进行采集,利用传感器技术与嵌入式技术相结合。设计了生理信息采集终端。设计中采用了跌倒检测,在老年人出现跌倒时,能够及时通知监护人员,防止出现救治不及时的情况,同时还利用蓝牙通信,将采集的信息上传到基于Android系统的智能手机终端。利用Android系统上传数据到服务器,为老年人建立生理监护系统。结果：对设计进行了实验测试．经试验表明系统能够正常的进行数据采集,体温测量数据误差在±0．3℃,血氧饱和度的测量在正常范围95％-98％之间,跌倒检测很准确的检测到了跌倒状况,满足测试的标准,达到了设计的预期效果。结论：该系统能够很好的实现老年人的生理信息监护．对老年人的血氧、体温进行了很好的监测．在老年人出现跌倒时能够及时的进行报警,得到救治,具有良好的扩展性和广泛的应用前景。     

Automated data collection and analysis system for MOSFET radiation detectors

Metal oxide semiconductor field effect transistors (MOSFET) have been used as radiation dosimeters. Because of their small detector size, minimal power requirements, and signal integration characteristics, they offer unique possibilities as real-time dose monitors in radiotherapy. An automated data collection and analysis system for use with MOSFET radiation dosimeters has been designed and built. The objective was to design a system which can acquire and process the MOSFET signals in real time, in any radiation field encountered in radiotherapy. In particular, major problems have been solved arising from the intrinsic drifts of the MOSFET signal during low dose rate measurements. These signal drifts are significant when the MOSFET detector is used in applications such as on-line monitoring of radiation dose delivery in brachytherapy or radioimmunotherapy. The data collection and analysis system includes a portable IBM-compatible personal computer fitted with digital-to-analog and analog-to-digital converter boards. A single-chip programmable current supply is used to power the MOSFET dosimeters. Intrinsic and extrinsic drifts in signal due to ion diffusion and electron tunneling are corrected by deconvolution of the collected data in real time or after data collection. The data acquisition system and signal-processing methodologies are described.     

Clinical laboratory and expert system]

Computer-based expert systems are designed to incorporate the knowledge of a human expert such that the computer program will solve problems in a manner similar to the human expert. The systems can be applied fruitfully to many phases of the laboratory testing, including order entry, specimen collection, analysis, result verification, and reporting. Interpretive reporting by means of expert systems is useful for influencing physician's use of laboratory and they offer potential help for clinical decision making. Although much of the early work in the clinical laboratory involved stand-alone expert systems, approaches that integrate more closely with laboratory information system or hospital information system are being used. A short review on the technology of expert system with an emphasis on the roles played by clinical laboratory is made. A trial system dealing with thyroid diseases, based on interpretation of hormonal levels (TSH, Total and Free T3, T4), is described.     

Tunnel diode FM transmitter for medical research and laboratory telemetering

The design of a miniaturized FM radio transmitter using a tunnel diode as the main active element to broadcast information regarding body activity such as muscle and heart potentials to a remote receiver and recorder is reported. This FM transmitter has extremely high sensitivity. A maximum value of 500 kc/mV is obtained. The equivalent input noise of the complete transmitter and receiver system is 0.5 μV, at a signal to noise ratio of 20 dB. The dynamic range is 2×10³ (1μV to 2mV). The weight is 0.1 oz. with battery, and 0.04 oz. without battery. Results from field tests of the transmitter are also reported. Tests show that it is capable of transmitting body signals of 10 μV amplitude or stronger over a distance of 10–50 ft, with high fidelity and low noise. The interference from the A.C. power lines as well as other environmental noise, is greatly reduced. A two-wire input system may be used instead of the three-wire differential system. A frequency drift of 2 Mc/s between room temperature and body temperature was observed. The source of the temperature drift was discussed and compensating methods suggested. The feasibility of powering this transmitter by radio waves, light, heat, and mechanical motion is also discussed briefly.     

知识产权保护与信息管理系统开发

本文通过分析信息管理系统建设中面临的知识产权保护问题,包括信息采集、利用与服务,数据库等的知识产权保护。以此为基础,提出了信息管理系统建设中知识产权保护的相对策略。     

基于人工脉冲神经网络的门诊静脉采血智能预约平台设计

基于人工脉冲神经网络建立新型门诊静脉采血智能预约平台。在数据源整合处理模块中,基于脉冲神经网络设计局部递归的人工脉冲神经网络,实现多类型预约数据源的整合处理。在序列特征挖掘模块中,利用多层双向LSTM网络建立PDCA模型,提取门诊静脉采血预约数据的形态特征和语义特征,通过多层双向LSTM网络融合序列特征实体信息。在预约模块中,门诊静脉采血智能预约主要通过自助设备与互联网来完成,通过JavaScrip编写自助设备与互联网页面的门诊静脉采血预约程序。平台数据库由多种数据表构成,具体包括医生信息表、预约时间点分配表等。平台性能测试结果显示,设计平台的数据库每秒查询率更高,最高可达到54239次,信息抽取准确率最高为98.60%。     

基于眼电的字符输入系统研究

为有肢体运动障碍的群体提供一种不须依靠肢体进行信息交流的人机交互系统,使用者可以通过控制眼球视线方向实现与外界进行信息交流。设计了一种注视目标在屏幕上从中心往不同方向跳动的人机交互界面,利用水平和垂直眼电信号检测眼睛注视这些跳动目标时的眼动。算法步骤是首先采用数学形态学法去除眼电中的肌电和眨眼干扰,然后采用主成分分析法提取出不同眼球视线方向的特征向量,对眼电信号进行空间滤波,依据最大幅度所在方向和极性值判断眼球跳视方向,从而确定受试注视目标。结果表明,受试能够通过注视跳动目标,根据自己的意愿进行字符输入的操作。8个受试的结果表明系统的平均信息传输率为25.7 b/min。结合数学形态学和主成分分析的方法能够较好地提取出眼球跳视方向,并且可以转化为控制外界设备的命令。     

Real-time distortionless high-factor compression scheme

Nowadays, digital subtraction angiography systems must be able to sustain real-time acquisition (30 frames per second) of 512 x 512 x 8 bit images and store several sequences of such images on low cost and general-purpose mass memories. Concretely, that means a 7.8 Mbytes per second rate and about 780 Mbytes disk space to hold a 100-s cardiac examination. To fulfill these requirements at competitive cost, a distortionless compressor/decompressor system can be designed: during acquisition, the real-time compressor transforms the input images into a lower quantity of coded information through a predictive coder and a variable-length Huffman code. The process is fully reversible because during review, the real-time decompressor exactly recovers the acquired images from the stored compressed data. Test results on many raw images demonstrate that real-time compression is feasible and takes place with absolutely no loss of information. The designed system indifferently works on 512 or 1024 formats, and 256 or 1024 gray levels.     

Preliminary study of a new type of energy transmission system for artificial hearts

 A transcutaneous energy transmission (TET) system is the most common way to power artificial hearts and ventricular assist devices. However, an external battery used with a TET system poses several problems, such as its heavy mass, small charge capacity, and long recharging time. The battery is indispensable when patients want to be ambulatory. This article proposes a new type of TET system that does not require an external battery because electrical energy is supplied remotely by using electromagnetic waves. For this system to operate, multiple transmitting antennas have to be mounted in a room or facility that has been shielded from electromagnetic waves, and a receiving antenna is attached to the patient. Electromagnetic waves transmit electrical power from the transmitting antennas to the receiving antenna. The received electrical power is sent to an implanted device through the TET system. The total power efficiency was plotted against the transmitter–receiver distance by measuring the power that was input to the transmitting antennas, and the final direct current (DC) power that was received by the receiving antenna. A 430-MHz frequency was applied in the experiments. The obtained efficiency was around 10% within a transmitter–receiver distance of 1 m when Yagi-Uda antennas were used for the transmitting antennas and two other types of antenna were used for the receiving antennas: a folded dipole with a reflector and a single loop with a reflector. The results suggested that the proposed system is worth considering. The proposed system would go a long way toward enhancing the patient's quality of life compared with the currently used conventional TET system. Received: December 25, 2001 / Accepted: October 16, 2002 Correspondence to:T. Ozeki