Anatomic Site Concept ID: BodyPartExamined (0018,0015) vs AnatomicRegionSequence (0008,2218)

[kyulee-jeon]

For future automation of ETL processes, we may need to select appropriate standard tags as sources. Attributes like 'BodyPartExamined' and 'AnatomicRegionSequence' contain information about the anatomic site of the imaging.

Key Points:

• (DICOM Standard) According to DICOM PS3.16, 'AnatomicRegionSequence' defines a more diverse and detailed Context Group compared to 'BodyPartExamined', which reflects historical or clinically well-recognized usage.
• Insights from our institution's sample data indicate 'BodyPartExamined' captured more information for Chest CT and Brain MR, but results may vary across institutions and modalities.

Modality	Captured Values for 'BodyPartExamined'	Captured Values for 'AnatomicRegionSequence'
Brain MR	'BRAIN', 'NECKCHESTABDOMEN', 'HEAD', nan	{Code Value: T-D1100, Code Meaning: HEAD}, nan
Chest CT	'CHEST', 'ABDOMEN', nan	nan

Discussion Point:

• I am curious about how this appears in other institutions and different imaging studies.

References:

• DICOM PS3.16 > Correspondence of Anatomic Region Codes and Body Part Examined Defined Terms