Netteland, Dag FernerAarhus, MadsSandset, Else CharlottePadayachy, LlewellynHelseth, EirikBrekken, Reidar2025-06-042025-06-042024-08Netteland, D.F., Aarhus, M., Sandset, E.C. et al. In Reply: Noninvasive Assessment of Intracranial Pressure: Deformability Index as an Adjunct to Optic Nerve Sheath Diameter to Increase Diagnostic Ability. Neurocritical Care 41, 307–309 (2024). https://doi.org/10.1007/s12028-024-02027-w.1541-6933 (print)1556-0961 (online)10.1007/s12028-024-02027-whttp://hdl.handle.net/2263/102643This letter is in response to a letter to the editor available at https://doi.org/10.1007/s12028-024-02025-yThis article has been related to the original article available at https://doi.org/10.1007/s12028-024-01955-x.No abstract available.en© 2024 Springer Science+Business Media, LLC, part of Springer Nature and Neurocritical Care Society.Deformability indexUltrasoundNoninvasiveIntracranial pressureTraumatic brain injury (TBI)Invasive intracranial pressure (ICP)Optic nerve sheath diameter (ONSD)LetterPostprint Article