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dicom
Max Taggart
Max Taggart

Reputation: 823

DICOM: Is every instance in a series required to have the same set of tags?

I am still trying to wrap my head around DICOM, and this is a pretty basic question. I have spent plenty of hours in the standard but I can't find the answer to this question. Is every instance in a series required to have the same set of DICOM tags? And if so, is it also true that every instance in the whole study is required to have the same set of tags?

I realize that every instance is required to conform to an SOP Class, however not all the attributes in a given class are required, leaving open the possibility that some instances may include optional attributes that other instances in the same series do not include. Am I thinking about this the right way?

Upvotes: 3

Views: 820

Answers (1)

Markus Sabin
Markus Sabin

Reputation: 4013

There is no such requirement imposed by the DICOM standard. However, most systems export acquired data through kind of a pipeline which generates the DICOM format. Thus, it is most often the case that all instances in a series share the same set of DICOM tags.

Upvotes: 2

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