Unnecessary diagnostic imaging (DI) examinations raise concerns for patient safety and place stress on human and financial resources. To reduce unnecessary DI examinations, several Canadian pilot studies have investigated how decision support systems (DSS) could be utilized. Based on interview results from our previous research, in addition to a literature review, themes emerged that influenced the features and design of a DI DSS prototype. Features include having the referring professional indicate how the results of the examination will be utilized (i.e. for diagnosis or patient management), increasing communication between referring physicians/nurse practitioners and radiologists, and displaying previous DI examinations (or orders that are scheduled to take place) to avoid duplicate orders. Presenting a patient's cumulative radiation exposure, and having resources for information support to guide physicians through challenging clinical decisions are two other features included in the DSS prototype. By incorporating physician perspectives and current literature into the design, this DSS aims to promote the appropriate use of DI resources by supporting physicians and nurse practitioners in their DI ordering practices.

关键词：影像诊断；医学成像；决策支持工具；决策支持系统

查看摘要 索取原文[5页]

2013年中国战略性新兴产业总体呈现良好发展态势，保持了相对较快的产业增速。展望2014年，全球经济将延续缓慢复苏的步伐，而中国转经济、调结构也进入攻坚期和深水区，战略性新兴产业有望迎来快速发展的最佳契机，成为引领经济增长的重要引擎。

关键词：节能环保；新一代信息技术；生物；高端装备制造；新能源；新材料；新能源汽车

查看摘要 索取原文[38页]

本刊以七大战略性新兴产业——节能环保、新一代信息技术、生物、高端装备制造、新能源、新材料、新能源汽车为研究重点，关注国家高层和各部委的动态，剖析国家和地方的新兴产业政策。本刊设有政策导读、领导讲话、七大战略性新兴产业本周国内外行业动态和重点企业新闻、投资专题四大板块，能够实时监测新兴产业和重点企业动态，把握新兴产业发展方向，研究发展重点，寻求发展机遇。

关键词：节能环保；新一代信息技术；生物；高端装备制造；新能源；新材料；新能源汽车

查看摘要 索取原文[24页]

As the role of medical imaging in clinical diagnoses and treatment has been more and more important,CT scan has been applied more widely.How to extract abdominal artery from CT image automatically and accurately has a significant value for abdominal artery disease.Because the medical image is of complexity and diversity,traditional segmentation method cannot complete the segmentation task very well.Therefore,this paper presents a method for extracting abdominal artery from CT images using three-dimensional region growing algorithm combined with image morphology.The experimental results show that the proposed method is an effective way for improving the accuracy of abdominal artery segmentation.

关键词：疗用图像；三维图像；分割；区域生长；图像形态学

查看摘要 索取原文[5页]

In this paper, software architecture for medical image processing, analysis and archiving is presented. On the basis of the considered architecture a new task-oriented medical image processing system, which allows imitating of the human visual system, is developed. The basic functions include input/output of halftone images, pre- and post-processing, filtration, compression, enhancement, 2D linear transforms, pseudo-color transforms, analysis and interpolations. Using the system features, various image processing tasks are semantically described in the experimental part. The main advantages of the proposed architecture are the use of adaptive algorithms for processing of medical images, tailored to their specific features.

关键词：图像处理；医学影像；软件架构；知识库系统

查看摘要 索取原文[10页]

We here report on the process of developing a surgical robot that can conduct operation "going inside the body without spreading the operational region". The endoscopic robot that we are developing now has a flexible cylindrical body with functions of a set of human arms at the tip and also with vision and haptic sense functions. We evaluated necessary technology factor to complete this robot into categories such as, transmission of energy, adaptation to insides of the body.

关键词：手术机器人；触觉感觉；医学影像

查看摘要 索取原文[7页]

Science advances both by conceptual leaps and by improved observational and analytic tools. Mechanism and function in biological systems can best be understood in the context of the complex microen-vironments in which they occur, and for this purpose morphologic analysis can be critical. The technological advances in cell and tissue imaging described in this book are currently finding application in a wide variety of basic, translational, and clinical biomedical studies. We have chosen some specific approaches that illustrate the various categories of imaging methodologies available. Many other ways of applying modern morphology-based interrogation of cells and tissues have already been described and are continuously evolving. This chapter provides examples of some of these. On the clinical front, radiologists have embraced new imaging technique to a greater extent than have pathologists. This chapter discusses some of the factors responsible for this, and suggests that pathology and radiology are converging towards a more holistic approach to diagnostic imaging.

关键词：生物系统；生物医学；病理学；放射学

查看摘要 索取原文[13页]

 

关键词：癌症分期；放射科报告；语义规则库；生物医学

查看摘要 索取原文[13页]

This paper studies induced electric fields and current densities for peripheral nerve stimulation (PNS) induced by breast gradient coils.The numerical calculations are based on an efficient,quasi-static,finite-difference (QSFD) scheme.The application of the human body to the calculations of induced current densities and electric fields from applied low frequency magnetic and electric fields is described.The spatial distributions of the induced electric field and their gradients are calculated.This study provides some insight into the spatial characteristics of the induced field gradients for PNS in MRI,which may be used to further evaluate the sites where magnetic stimulation is likely to occur and to optimize gradient coil design.

关键词：乳房梯度线圈，感应电流；准静态有限差分（QSFD）；磁共振成像

查看摘要 索取原文[5页]

In the context of image-guided left atrial fibrillation therapy, relatively very little work has been done to consider the changes that occur in the tissue during ablation in order to monitor therapy delivery. Here we describe a technique to predict the lesion progression and monitor the radio-frequency energy delivery via a thermal ablation model that uses heat transfer principles to estimate the tissue temperature distribution and resulting lesion. A preliminary evaluation of the model was conducted in ex vivo skeletal beef muscle tissue while emulating a clinically relevant tissue ablation protocol. The predicted temperature distribution within the tissue was assessed against that measured directly using fiberoptic temperature probes and showed agreement within 5℃ between the model-predicted and experimentally measured tissue temperatures at prescribed locations. We believe this technique is capable of providing reasonably accurate representations of the tissue response to radio-frequency energy delivery.

关键词：房颤治疗；图像引导导管导航；温度分布与病变特征；生物医学

查看摘要 索取原文[7页]