Hi HBN team,

I had a question regarding the “Clinical Impression” field in the MRI Tracking file. I noticed that this variable contains three possible values, and for my analyses I plan to include participants with a value of 1 (within normal limits). To describe this criterion accurately in my methods, I was hoping to better understand how this field was determined.

Could you clarify how the Clinical Impression was evaluated in HBN data (for example, whether it was assessed by a neuroradiologist, a study clinician, or through another review process)?

Thank you very much for your time and help!