HL7 传送报告 -- 有请 sfinder

JB

我去年发了一个 Word 文件，是整合 HIS、RIS、PACS 的规范。TCP/IP 端口、HL7 消息与字段，用法等等都说明得很清楚。按那个文件，下载一些 Mesa 的开源码， HL7 可以很快上手。

这个帖子是去年 7 月份左右发的，如果这里找不到可以到中国 PACS 论坛 HL7 版去找。

dongxi

看了一下，估计就是这篇了。

请注意，该文由JB撰写，来源是——中国PACS论坛。版权归他。

另外，由我翻出来的，“翻”权归我。哈哈

dongxi

抱歉

sfinder

看了jb的spec,觉得大部分hl7界面实际应用的要点都概括到了。补充一点在hl7 spec表中第3栏O/R的意思是
o--可选。R--必需。

JB提到的QUERY FOR RESULT 界面，在不同机构间的信息整合会用到（原因请大家思考一下）。还有就是ER部门（原因也请大家思考一下）。这种界面是近几年才开始使用，使用时一定要小心，检索条件一定要精确。（原因请大家思考一下）

JB

sfinder 说得对，push 还是主要的作业方式，query 用得比较少，变数也可以比较多。

JB

如果你的 HL7 只是接自己的东西，想怎么做都可以。如果考虑的是跟其他设备兼容，要照顾到多方面。XML 虽然 sexy 但是如果对方没有的话是没法用的。再说 XML 有什么 added value? 只有 added incompatibility 和 frustrations。


HL7 2.3、2.4 在北美非常普及，用得很多。

jdli

HL7 2.x 是目前在北美应用最广泛的标准,但正是通过大量实践的检验,发现它有着先天性的不足,才催发了Version 3 的制定. 它的局限性至少有以下(sorry, my skill of typing Chinese is very poor…):

Implicit information model, which cause ambiguity during communication between sites.
Need for controlled vocabulary.
Limited to single encoding syntax
No explicit support for object technologies
No explicit support for security functions
Optionality is ubiquitous and troublesome.

From my experience, even both site using HL7 2.3 or 2.4, there still are lots of re-mapping effort needed, just because of the above limitations. I think HL7 version 3 could finally effectively resolve above limitations without sacrificing the advantages that current V2.x have.

But, changing from V2.x to V3 is painful and I’m not sure how long it’ll take…

sfinder

Hi, I totally agree with your options but who is using V3 in North America. Which big HIS player is supporting V3? By the way, has V3 been offically released?  5 years ago,  I thought we might need to wait 5 year to start to use it. Now , I guess we still need to wait another 5 years to see it happend.

jdli

Agree with you about the V3's future in North America. Even if V3 has been officialy released, I am not positive that all major HIS players will adopt it in several years.

What I try to say is in China, it worth a try by refering V3 XML idea. As I understand, it doesn't matter right now in China to use V2.x or V3 (draft), just because there are no dominated standard yet, and hospitals in China are not in the position of exchanging data among multiple institutions.

I also noticed that in this forum, people talks HL7 a lot, but without using controlled vocabulary/terminology(i.e LOINC, ICD, CPT,SNOMED...), I don't see there is much value of only focusing HL7.

discoverer

wa sai,xian zai dou kai shi guo ji jiao liu la!gen bu shang xing shi le.
各位大哥，那个什么chameleon在哪里有下载的？谢谢了，再不学习就要落伍了 _:-(

jhs1

哇噻，现在都开始国际交流啦！跟不上形势了。

theone

现在都开始更加交流啦(xian zai dou kai shi guo ji jiao liu la!)
应为：
现在都开始“国际”交流啦

jhs1

咳，真臭，犯了如此简单的错误！

discoverer

国际交流当然很好，毕竟本行业是从国外传入的。“师夷长技以制夷”有失偏颇，用我们的手从国外同行那里“拿来”一些先进的东西还是很好的，真的很想把那个“变色龙”拿过来，到底在哪里“拿”呢？
斑竹上传一个吧 :--

discoverer

OK，找到了。好好研究一番。