The location of an ingested foreign object is often difficult to determine by X-ray if gastric air bubbles are not clear in the image.Methods that provide negative contrast can facilitate precise object localization,w...The location of an ingested foreign object is often difficult to determine by X-ray if gastric air bubbles are not clear in the image.Methods that provide negative contrast can facilitate precise object localization,which is important for object retrieval and treatment of the patient.This case report describes a male child,2 years and 2 mo of age,who accidentally swallowed a lithium battery while playing at home.A plain X-ray showed that the battery was in the abdomen,but it was unclear whether the object was still inside the stomach.A second X-ray examination performed after oral administration of a bloating agent to produce expansion of the stomach and provide negative contrast confirmed that the ingested battery was still in the stomach.The battery was then carefully removed using magnetic and balloon catheters under fluoroscopic guidance.This case report describes the successful use of an orally administered bloating agent without pain to the child in orderto determine the precise location of a foreign object in the abdomen.展开更多
CAUPS(computer aided urban p lann ing system)系统是一个基于对象和Agent的计算机辅助城市规划系统,它改变了传统城市规划中需要使用多种不同软件协同设计的规划模式,实现了一种新的城市规划流程,即通过辅助规划人员定义对象、添加...CAUPS(computer aided urban p lann ing system)系统是一个基于对象和Agent的计算机辅助城市规划系统,它改变了传统城市规划中需要使用多种不同软件协同设计的规划模式,实现了一种新的城市规划流程,即通过辅助规划人员定义对象、添加对象、系统自动评估设计方案等步骤,大大提高了城市规划的效率。介绍了CAUPS的设计与实现方法,其主要特点一是将传统G IS中的关系数据形式转变成以对象为基本单位的面向对象形式;二是采用实体Agent作为其运行的基本单元。该系统已成功地应用于杭州西湖申报世界文化遗产等规划项目中。展开更多
文摘The location of an ingested foreign object is often difficult to determine by X-ray if gastric air bubbles are not clear in the image.Methods that provide negative contrast can facilitate precise object localization,which is important for object retrieval and treatment of the patient.This case report describes a male child,2 years and 2 mo of age,who accidentally swallowed a lithium battery while playing at home.A plain X-ray showed that the battery was in the abdomen,but it was unclear whether the object was still inside the stomach.A second X-ray examination performed after oral administration of a bloating agent to produce expansion of the stomach and provide negative contrast confirmed that the ingested battery was still in the stomach.The battery was then carefully removed using magnetic and balloon catheters under fluoroscopic guidance.This case report describes the successful use of an orally administered bloating agent without pain to the child in orderto determine the precise location of a foreign object in the abdomen.
文摘CAUPS(computer aided urban p lann ing system)系统是一个基于对象和Agent的计算机辅助城市规划系统,它改变了传统城市规划中需要使用多种不同软件协同设计的规划模式,实现了一种新的城市规划流程,即通过辅助规划人员定义对象、添加对象、系统自动评估设计方案等步骤,大大提高了城市规划的效率。介绍了CAUPS的设计与实现方法,其主要特点一是将传统G IS中的关系数据形式转变成以对象为基本单位的面向对象形式;二是采用实体Agent作为其运行的基本单元。该系统已成功地应用于杭州西湖申报世界文化遗产等规划项目中。
