alt-text references improved

Author: mcevoy-building7

articles/healthcare-apis/dicom/dicom-register-application.md

@@ -63,21 +63,21 @@ The following steps are required for the DICOM service. In addition, user access
 
 1. Select the **API permissions** blade.
 
-   [ ![Add API permissions](./media/dicom-add-apis-permissions.png) ](./media/dicom-add-apis-permissions.png#lightbox)
+   [ ![Screenshot of API permission page with Add a permission button highlighted.](./media/dicom-add-apis-permissions.png) ](./media/dicom-add-apis-permissions.png#lightbox)
 
 2. Select **Add a permission**.
 
    Add a permission to the DICOM service by searching for **Azure API for DICOM** under **APIs my organization** uses.
 
-   [ ![Search API permissions](./media/dicom-search-apis-permissions.png) ](./media/dicom-search-apis-permissions.png#lightbox)
+   [ ![Screenshot of Search API permissions page with the APIs my organization uses tab selected.](./media/dicom-search-apis-permissions.png) ](./media/dicom-search-apis-permissions.png#lightbox)
 
    The search result for Azure API for DICOM will only return if you've already deployed the DICOM service in the workspace.
 
    If you're referencing a different resource application, select your DICOM API Resource Application Registration that you created previously under **APIs my organization**.
 
 3. Select scopes (permissions) that the confidential client application will ask for on behalf of a user. Select **Dicom.ReadWrite**, and then select **Add permissions**.
 
-   [ ![Select permissions scopes](./media/dicom-select-scopes-new.png) ](./media/dicom-select-scopes-new.png#lightbox)
+   [ ![Screenshot of scopes (permissions) that the client application will ask for on behalf of a user.](./media/dicom-select-scopes-new.png) ](./media/dicom-select-scopes-new.png#lightbox)
 
 Your application registration is now complete.
 

articles/healthcare-apis/register-application.md

@@ -71,21 +71,21 @@ The following steps are required for the DICOM service, but optional for the FHI
 
 1. Select the **API permissions** blade.
 
-   [ ![Add API permissions](dicom/media/dicom-add-apis-permissions.png) ](dicom/media/dicom-add-apis-permissions.png#lightbox)
+   [ ![Screenshot of API permission page with Add a permission button highlighted.](dicom/media/dicom-add-apis-permissions.png) ](dicom/media/dicom-add-apis-permissions.png#lightbox)
 
 2. Select **Add a permission**.
 
    If you're using Azure Health Data Services, you'll add a permission to the DICOM service by searching for **Azure API for DICOM** under **APIs my organization** uses. 
 
-   [ ![Search API permissions](dicom/media/dicom-search-apis-permissions.png) ](dicom/media/dicom-search-apis-permissions.png#lightbox)
+   [ ![Screenshot of Search API permissions page with the APIs my organization uses tab selected.](dicom/media/dicom-search-apis-permissions.png) ](dicom/media/dicom-search-apis-permissions.png#lightbox)
 
    The search result for Azure API for DICOM will only return if you've already deployed the DICOM service in the workspace.
 
    If you're referencing a different resource application, select your DICOM API Resource Application Registration that you created previously under **APIs my organization**.
 
 3. Select scopes (permissions) that the confidential client application will ask for on behalf of a user. Select **user_impersonation**, and then select **Add permissions**.
 
-   [ ![Select permissions scopes.](dicom/media/dicom-select-scopes.png) ](dicom/media/dicom-select-scopes.png#lightbox)
+   [ ![Screenshot of scopes (permissions) that the client application will ask for on behalf of a user.](dicom/media/dicom-select-scopes.png) ](dicom/media/dicom-select-scopes.png#lightbox)
 
 >[!NOTE]
 >Use  grant_type of client_credentials when trying to obtain an access token for the FHIR service using tools such as Postman or REST Client. For more details, visit [Access using Postman](./fhir/use-postman.md) and [Accessing Azure Health Data Services using the REST Client Extension in Visual Studio Code](./fhir/using-rest-client.md).