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Article History

Accepted: 29 June 2021

First Online: 12 July 2021

Declarations

:

: The authors declare that they have no conflict of interest.

: All imaging was performed during routine neuroradiological work-up of patients based on clinical indications; no prospective imaging of normal volunteers was performed in this study. As such, according to guidelines of the revised Declaration of Helsinki, this study reported the retrospective analysis of data (images) obtained from ‘routine sources’ where consent of individual patients and ethical approval for research analysis was, therefore, not considered necessary.

: This article does not contain any studies with human subjects or animals performed by the authors.