Supported DICOM metadata types

Fijoy_Vadakkumpadan · February 9, 2018, 9:34pm

Hello,

Are DICOM metadata values of all types supported in ITK?

I’d retrieve metadata value of any type from a DICOM image, given an arbitrary DICOM tag. All examples I see in documentation are for string metadata, so wondering if other types (e.g., integers, arrays, etc.) are supported.

Thanks,
–Fijoy

dzenanz · February 9, 2018, 9:51pm

If I remember correctly, all tags can be accessed. But: binary tags are encoded using Base64 scheme, and private tags are not loaded by default - you have to explicitly request them.

Fijoy_Vadakkumpadan · February 9, 2018, 10:22pm

Thank you Dženan. So, the call GetMetaDataObjectValue() always returns a string, regardless of the DICOM tag type (please correct me if I’m wrong).

Does ITK provide routines to convert the base64 string back to the original binary data?

dzenanz · February 10, 2018, 4:37pm

GDCM (part of ITK) does. Also see this and this.