Coerce incoming MPPS N CREATE requests to archive
Content
Following fields of an archive attribute coercion rule determine whether a particular rule will get applied or not. To coerce incoming MPPS N-CREATE requests, fields should be configured as
| Coercion Rule field | Value / Notes |
|---|---|
| DIMSE | N_CREATE_RQ |
| Role | SCU |
| SOP Class UID | May be configured to one of MPPS SOP Class |
| Conditions | May be configured according to requirement, to limit the rule only to certain conditions. eg. SendingApplicationEntityTitle=MOD_US01 or Modality=CR|CT (specifying multiple values separated by |) or Modality!=CR|CT (specifying multiple values separated by | with not equals condition) |
| Rule Priority | If multiple coercion rules with exact values for above 4 fields are configured, higher rule priority coercion rule takes precedence |
Incoming MPPS requests received by archive can be coerced using one or more coercion features available in a coercion rule as shown below.
- eg. If all shown fields are configured, nullifying attributes is applied first, whereas coercing by XSL stylesheet is applied at last.
Note : Each coercion type gets applied only if corresponding fields are configured. Examples shown for some fields.
| Coercion Feature | Description |
|---|---|
| Nullify Tags | Used for nullifying values of one or more DICOM tags in received MPPS dataset |
| Merge Attributes | Used for merging values of one or more DICOM tags in received MPPS dataset using different Attribute Formats - eg. PatientID={PatientID,slice,3} or by specifying static dummy values in combination with received values. - eg. PerformedProcedureStepID=PPS-{PerformedProcedureStepID} |
| Supplement from device | Supplement one or more attributes in received MPPS dataset |
| Coerce from XSL | Coerce one or more attributes using XSL stylesheet for more customization |