Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension

Abstract Objective The incidence of idiopathic intracranial hypertension (IIH) has nearly doubled in the recent decade, possibly due to increasing obesity rates. Lumbar puncture pressure (LPP) assessment is still the diagnostic gold standard but due to invasiveness of the method, several non-invasiv...

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Main Authors: Nabil Al Shammas, Sophie Schumann, Dragana Köhler, Bernhard Rosengarten
Format: Article
Language:English
Published: SpringerOpen 2025-06-01
Series:The Ultrasound Journal
Subjects:
Online Access:https://doi.org/10.1186/s13089-025-00434-4
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author Nabil Al Shammas
Sophie Schumann
Dragana Köhler
Bernhard Rosengarten
author_facet Nabil Al Shammas
Sophie Schumann
Dragana Köhler
Bernhard Rosengarten
author_sort Nabil Al Shammas
collection DOAJ
description Abstract Objective The incidence of idiopathic intracranial hypertension (IIH) has nearly doubled in the recent decade, possibly due to increasing obesity rates. Lumbar puncture pressure (LPP) assessment is still the diagnostic gold standard but due to invasiveness of the method, several non-invasive alternatives exist. We evaluated a non-invasive intracranial pressure (nICP) method for its accuracy to predict LPP. Methods Prospectively, we included patients with suspected IIH and obtained nICP by means of a combined bilateral transcranial Doppler and photoplethysmographic arterial blood pressure method. In addition, we searched for an empty sella sign by magnetic resonance tomography and evaluated the optical nerve sheath diameter (ONSD) bilaterally by Duplex sonography. We analyzed data on an individual level for their capability to predict LPP. Included were 70 patients from which 60 with a complete data set were used for further evaluation. Patients with symptomatic intracranial pressure were excluded. Results The nICP and LPP correlated with R = 0.85 on the right, and R = 0.79 on the left side (p < 0.001, respectively). The mean difference of nICP-LPP was 0.45 ± 4.93 cmH2O. Its sensitivity to predict an increased ICP was 0.92, the specificity was 0.88 and negative predictive value 0.88. The empty sella sign and the ONSD showed no significant correlation to the LPP. Conclusion The nICP method allows pre-diagnosis of increased ICP and might help in decision making for the need of LPP. Due to the moderately increased ICP levels, ONSD remained insignificant.
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spelling doaj-art-482eb4251a074b8a977933c57c58a23d2025-08-20T03:27:11ZengSpringerOpenThe Ultrasound Journal2524-89872025-06-011711810.1186/s13089-025-00434-4Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertensionNabil Al Shammas0Sophie Schumann1Dragana Köhler2Bernhard Rosengarten3Department of Neurology, Chemnitz Medical CenterDepartment of Neurology, Chemnitz Medical CenterDepartment of Neurology, Chemnitz Medical CenterDepartment of Neurology, Chemnitz Medical CenterAbstract Objective The incidence of idiopathic intracranial hypertension (IIH) has nearly doubled in the recent decade, possibly due to increasing obesity rates. Lumbar puncture pressure (LPP) assessment is still the diagnostic gold standard but due to invasiveness of the method, several non-invasive alternatives exist. We evaluated a non-invasive intracranial pressure (nICP) method for its accuracy to predict LPP. Methods Prospectively, we included patients with suspected IIH and obtained nICP by means of a combined bilateral transcranial Doppler and photoplethysmographic arterial blood pressure method. In addition, we searched for an empty sella sign by magnetic resonance tomography and evaluated the optical nerve sheath diameter (ONSD) bilaterally by Duplex sonography. We analyzed data on an individual level for their capability to predict LPP. Included were 70 patients from which 60 with a complete data set were used for further evaluation. Patients with symptomatic intracranial pressure were excluded. Results The nICP and LPP correlated with R = 0.85 on the right, and R = 0.79 on the left side (p < 0.001, respectively). The mean difference of nICP-LPP was 0.45 ± 4.93 cmH2O. Its sensitivity to predict an increased ICP was 0.92, the specificity was 0.88 and negative predictive value 0.88. The empty sella sign and the ONSD showed no significant correlation to the LPP. Conclusion The nICP method allows pre-diagnosis of increased ICP and might help in decision making for the need of LPP. Due to the moderately increased ICP levels, ONSD remained insignificant.https://doi.org/10.1186/s13089-025-00434-4Non-invasive intracranial pressureOptic nerve sheath diameterEmpty sellaPseudotumor cerebriIdiopathic intracranial hypertensionLumbar puncture
spellingShingle Nabil Al Shammas
Sophie Schumann
Dragana Köhler
Bernhard Rosengarten
Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
The Ultrasound Journal
Non-invasive intracranial pressure
Optic nerve sheath diameter
Empty sella
Pseudotumor cerebri
Idiopathic intracranial hypertension
Lumbar puncture
title Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
title_full Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
title_fullStr Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
title_full_unstemmed Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
title_short Accuracy of intracranial pressure assessment with a non-invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
title_sort accuracy of intracranial pressure assessment with a non invasive transcranial doppler and arterial blood pressure method in patients with suspected idiopathic intracranial hypertension
topic Non-invasive intracranial pressure
Optic nerve sheath diameter
Empty sella
Pseudotumor cerebri
Idiopathic intracranial hypertension
Lumbar puncture
url https://doi.org/10.1186/s13089-025-00434-4
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