# Retrieving DICOM data from HealthImaging
<a name="dicomweb-retrieve"></a>

AWS HealthImaging offers representations of [https://www.dicomstandard.org/using/dicomweb/retrieve-wado-rs-and-wado-uri](https://www.dicomstandard.org/using/dicomweb/retrieve-wado-rs-and-wado-uri) APIs to retrieve data at the series and instance levels. With these APIs, it is possible to retrieve all metadata for a DICOM series from a HealthImaging [data store](getting-started-concepts.md#concept-data-store). It is also possible to retrieve a DICOM instance, DICOM instance metadata, and DICOM instance frames (pixel data). HealthImaging's `DICOMweb WADO-RS` APIs offer flexibility in how you retrieve data stored in HealthImaging and provide interoperability with legacy applications.

**Important**  
HealthImaging stores DICOM data as [image sets](getting-started-concepts.md#concept-image-set). Use HealthImaging [cloud native actions](https://docs.aws.amazon.com/healthimaging/latest/APIReference/API_Operations.html) to manage and retrieve image sets. HealthImaging's DICOMweb APIs can be used to return image set information with DICOMweb-conformant responses.  
The APIs listed in this section are built in conformance to the DICOMweb (WADO-RS) standard for web-based medical imaging. Because they are representations of DICOMweb APIs, they are not offered through AWS CLI and AWS SDKs.

The following table describes all HealthImaging representations of DICOMweb WADO-RS APIs available for retrieving data from HealthImaging.


**HealthImaging representations of DICOMweb WADO-RS APIs**  

| Name | Description | 
| --- | --- | 
| GetDICOMSeriesMetadata | Retrieve DICOM instance metadata (.json file) for a DICOM series in a HealthImaging data store by specifying the Study and Series UIDs associated with a resource. See [Retrieve series metadata](dicomweb-retrieve-series-metadata.md). | 
| GetDICOMInstance | Retrieve a DICOM instance (.dcm file) from a HealthImaging data store by specifying the Series, Study, and Instance UIDs associated with a resource. See [Retrieve an instance](dicomweb-retrieve-instance.md). | 
| GetDICOMInstanceMetadata | Retrieve DICOM instance metadata (.json file) from a DICOM instance in a HealthImaging data store by specifying the Series, Study, and Instance UIDs associated with a resource. See [Retrieve instance metadata](dicomweb-retrieve-instance-metadata.md). | 
| GetDICOMInstanceFrames | Retrieve single or batch image frames (multipart request) from a DICOM instance in a HealthImaging data store by specifying the Series UID, Study UID, Instance UIDs, and frame numbers associated with a resource. See [Retrieve frames](dicomweb-retrieve-instance-frames.md). | 

**Topics**
+ [Getting a DICOM instance from HealthImaging](dicomweb-retrieve-instance.md)
+ [Getting DICOM instance metadata from HealthImaging](dicomweb-retrieve-instance-metadata.md)
+ [Getting DICOM series metadata from HealthImaging](dicomweb-retrieve-series-metadata.md)
+ [Getting DICOM instance frames from HealthImaging](dicomweb-retrieve-instance-frames.md)
+ [Getting DICOM bulkdata from HealthImaging](dicom-retrieve-bulkdata.md)