介绍一下HL7的运行原理

kangzhihong

哪位高手能介绍一下HL7的运行原理？各个消息的区别是什么？如何区别？区别的字段是不是只是标记的作用？

ironstone

建议先看看精华区的帖子

kangzhihong

<img src='images/smiles/sweat.gif' smilietext=':sweat:' border='0' style='vertical-align:middle' alt=':sweat:' />   <img src='images/smiles/sweat.gif' smilietext=':sweat:' border='0' style='vertical-align:middle' alt=':sweat:' />   <img src='images/smiles/sweat.gif' smilietext=':sweat:' border='0' style='vertical-align:middle' alt=':sweat:' />  
<br>都已经看过了，但还有一点小疑问，我把我这几天来的所学说一下，请版主大哥指教：
<br>我感觉比如his和pacs交换信息，就是发送一个字符串，接受方对发送方发送的字符串进行分析，然后执行相应的操作。
<br>现在有一点我还有一点糊涂，消息头中的Message control ID(消息类型)是不是HL7随便规定的，大伙都根据他的规定作相应的操作，如果规定为别的字符，同样也可以？
<br>  <img src='images/smiles/muteness.gif' smilietext=':muteness:' border='0' style='vertical-align:middle' alt=':muteness:' />   <img src='images/smiles/muteness.gif' smilietext=':muteness:' border='0' style='vertical-align:middle' alt=':muteness:' />   <img src='images/smiles/muteness.gif' smilietext=':muteness:' border='0' style='vertical-align:middle' alt=':muteness:' />   <img src='images/smiles/muteness.gif' smilietext=':muteness:' border='0' style='vertical-align:middle' alt=':muteness:' />   <img src='images/smiles/muteness.gif' smilietext=':muteness:' border='0' style='vertical-align:middle' alt=':muteness:' />  
<br>换句话说，在HIS和PACS中实际交换的就是字符串，HL7规定的只是这个字符串的格式，其它的工作比如：PACS接受到字符串后立即响应相关的工作，或者返回一个确认接受或接受失败的信息由程序的事件来完成。
<br><img src='images/smiles/embarassed.gif' smilietext=':embarassed:' border='0' style='vertical-align:middle' alt=':embarassed:' />   <img src='images/smiles/embarassed.gif' smilietext=':embarassed:' border='0' style='vertical-align:middle' alt=':embarassed:' />   <img src='images/smiles/embarassed.gif' smilietext=':embarassed:' border='0' style='vertical-align:middle' alt=':embarassed:' />   <img src='images/smiles/embarassed.gif' smilietext=':embarassed:' border='0' style='vertical-align:middle' alt=':embarassed:' />   <img src='images/smiles/embarassed.gif' smilietext=':embarassed:' border='0' style='vertical-align:middle' alt=':embarassed:' />  
<br>请版主大哥指教小弟。
<br> <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />   <img src='images/smiles/agree.gif' smilietext=':agree:' border='0' style='vertical-align:middle' alt=':agree:' />

yuansheng

<br>up一下.