> ## Documentation Index
> Fetch the complete documentation index at: https://docs.encord.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Objects.metadata

## DICOMSeriesMetadata Objects

```python theme={"dark"}
class DICOMSeriesMetadata(BaseDTO)
```

Metadata for a DICOM series.

**Attributes**:

* `patient_id` *Optional\[str]* - The ID of the patient. This attribute is optional.
* `study_uid` *str* - The unique identifier for the study.
* `series_uid` *str* - The unique identifier for the series.

## DICOMSliceMetadata Objects

```python theme={"dark"}
class DICOMSliceMetadata(BaseDTO)
```

Metadata for a slice in a DICOM series.

**Attributes**:

* `dicom_instance_uid` *str* - The unique identifier for the DICOM instance.
* `multiframe_frame_number` *Optional\[int]* - The frame number if the DICOM instance is a multiframe image. This attribute is optional.
* `file_uri` *str* - The URI to the file containing the slice.
* `width` *int* - The width of the slice in pixels.
* `height` *int* - The height of the slice in pixels.