DICOM PS3.18 2019b - Web Services

12.4 Retrieve Transaction (Current)
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## 12.4 Retrieve Transaction

The Retrieve transaction retrieves the target NPI resource in a DICOM Media Type.

### 12.4.1 Request

The request shall have the following syntax:

    GET SP /{npi-name}/{uid} SP version CRLF

    Accept: 1#dicom-media-type CRLF

    *(header-field CRLF)

    CRLF

#### 12.4.1.1 Target Resources

The target URI shall reference one of the resources shown in Table 12.4.1-1.

An origin server shall specify all supported npi-names in its Conformance Statement and in its response to the Retrieve Capabilities transaction.

Table 12.4.1-1. Retrieve Transaction Resources

Resource | URI Template
--- | ---
Instance |
    /{npi-name}/{uid}

#### 12.4.1.2 Query Parameters

The user agent shall supply, and the origin server shall support, the Common Query Parameters in Section 12.1.2.

#### 12.4.1.3 Request Header Fields

Table 12.4.1-2. Request Header Fields

Name | Values | Usage | Description
--- | --- | --- | ---
User Agent | Origin Server
Accept | 1#-dicom-media-type | M | M | The Acceptable Media Types of the response payload

See also Section 8.4.

#### 12.4.1.4 Request Payload

The request shall have no payload.

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DICOM PS3.18 2019b - Web Services