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HL7 Usage Questions
HL7 Usage Questions
Hi,
hi have two fairly general questions about how HL7 is actually used
rather than technical aspects of the protocol.
We have developed and sold some medical imaging desktop software, and
are in the process of implementing a HL7 interface, we want 2 basic
features to work with HL7. (We are implementing version 2.4)
1. New patients that are meant to be added can be added to the
software. Now we have already written a HL7 server module, that
listens to ADT 04 messages and adds a patient. However we have 2
questions. Not every patient admitted to a hospital will need to be
added to this system, only those with conditions relevant to the
softwares area. Better for us would be some Query system, where
instead of listening for new patients, we ask the server for a list of
patients matching a pattern, like part of a surname, or patient id,
and we then choose the right patient. Is there such a mechanism in
HL7? Another disadvantage to the listening server approach is what
happens when the software is not running? At some stage the software
will need to ask some other server if there were any new patients
meant for me since some time or date. Is this also a typical HL7
usage?
2. The second feature we need, is for an event to be transmitted when
some new images are taken, and this only contains the type of images,
and their count, (and possibly later some other info like a comment or
diagnosis).
We are currently sending this as a ORU^R01 message with PID, PV1, OBR
and OBX. Fields. The last two lines look something like this:
OBR|1|||Cosmetic Surgery Module
OBX|1|TX|Images Taken^^NM|1|1||||||N
We don't however respond to any requests, it is merely transmitted
when the images are taken. Does it look like I am using the right
message type for this, in the right way? Our domain-specialist also
told us to look into BAR messages but I am not sure if thats right
either.
Can anyone help out? Better than feeding me for a day, if someone
could teach me how to fish by pointing me to any forums or anything to
help me learn more about how HL7 is used (rather than technical
details) I would appreciate that.
Thanks
Oolis
Hi,
hi have two fairly general questions about how HL7 is actually used
rather than technical aspects of the protocol.
We have developed and sold some medical imaging desktop software, and
are in the process of implementing a HL7 interface, we want 2 basic
features to work with HL7. (We are implementing version 2.4)
1. New patients that are meant to be added can be added to the
software. Now we have already written a HL7 server module, that
listens to ADT 04 messages and adds a patient. However we have 2
questions. Not every patient admitted to a hospital will need to be
added to this system, only those with conditions relevant to the
softwares area. Better for us would be some Query system, where
instead of listening for new patients, we ask the server for a list of
patients matching a pattern, like part of a surname, or patient id,
and we then choose the right patient. Is there such a mechanism in
HL7? Another disadvantage to the listening server approach is what
happens when the software is not running? At some stage the software
will need to ask some other server if there were any new patients
meant for me since some time or date. Is this also a typical HL7
usage?
2. The second feature we need, is for an event to be transmitted when
some new images are taken, and this only contains the type of images,
and their count, (and possibly later some other info like a comment or
diagnosis).
We are currently sending this as a ORU^R01 message with PID, PV1, OBR
and OBX. Fields. The last two lines look something like this:
OBR|1|||Cosmetic Surgery Module
OBX|1|TX|Images Taken^^NM|1|1||||||N
We don't however respond to any requests, it is merely transmitted
when the images are taken. Does it look like I am using the right
message type for this, in the right way? Our domain-specialist also
told us to look into BAR messages but I am not sure if thats right
either.
Can anyone help out? Better than feeding me for a day, if someone
could teach me how to fish by pointing me to any forums or anything to
help me learn more about how HL7 is used (rather than technical
details) I would appreciate that.
Thanks
Oolis
