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Reproducibility and accuracy of optic nerve sheath diameter assessment using ultrasound compared to magnetic resonance imaging.
BMC Neurol. 2013 Dec 01; 13:187.BN

Abstract

BACKGROUND

Quantification of the optic nerve sheath diameter (ONSD) by transbulbar sonography is a promising non-invasive technique for the detection of altered intracranial pressure. In order to establish this method as follow-up tool in diseases with intracranial hyper- or hypotension scan-rescan reproducibility and accuracy need to be systematically investigated.

METHODS

The right ONSD of 15 healthy volunteers (mean age 24.5 ± 0.8 years) were measured by both transbulbar sonography (9 - 3 MHz) and 3 Tesla MRI (half-Fourier acquisition single-shot turbo spin-echo sequences, HASTE) 3 and 5 mm behind papilla. All volunteers underwent repeated ultrasound and MRI examinations in order to assess scan-rescan reproducibility and accuracy. Moreover, inter- and intra-observer variabilities were calculated for both techniques.

RESULTS

Scan-rescan reproducibility was robust for ONSD quantification by sonography and MRI at both depths (r > 0.75, p ≤ 0.001, mean differences < 2%). Comparing ultrasound- and MRI-derived ONSD values, we found acceptable agreement between both methods for measurements at a depth of 3 mm (r = 0.72, p = 0.002, mean difference < 5%). Further analyses revealed good inter- and intra-observer reliability for sonographic measurements 3 mm behind the papilla and for MRI at 3 and 5 mm (r > 0.82, p < 0.001, mean differences < 5%).

CONCLUSIONS

Sonographic ONSD quantification 3 mm behind the papilla can be performed with good reproducibility, measurement accuracy and observer agreement. Thus, our findings emphasize the feasibility of this technique as a non-invasive bedside tool for longitudinal ONSD measurements.

Authors+Show Affiliations

Department of Neurology, University Medical Center Freiburg, Breisacher Str, 64, 79106 Freiburg, Germany. jochen.baeuerle@uniklinik-freiburg.de.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24289136

Citation

Bäuerle, Jochen, et al. "Reproducibility and Accuracy of Optic Nerve Sheath Diameter Assessment Using Ultrasound Compared to Magnetic Resonance Imaging." BMC Neurology, vol. 13, 2013, p. 187.
Bäuerle J, Schuchardt F, Schroeder L, et al. Reproducibility and accuracy of optic nerve sheath diameter assessment using ultrasound compared to magnetic resonance imaging. BMC Neurol. 2013;13:187.
Bäuerle, J., Schuchardt, F., Schroeder, L., Egger, K., Weigel, M., & Harloff, A. (2013). Reproducibility and accuracy of optic nerve sheath diameter assessment using ultrasound compared to magnetic resonance imaging. BMC Neurology, 13, 187. https://doi.org/10.1186/1471-2377-13-187
Bäuerle J, et al. Reproducibility and Accuracy of Optic Nerve Sheath Diameter Assessment Using Ultrasound Compared to Magnetic Resonance Imaging. BMC Neurol. 2013 Dec 1;13:187. PubMed PMID: 24289136.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reproducibility and accuracy of optic nerve sheath diameter assessment using ultrasound compared to magnetic resonance imaging. AU - Bäuerle,Jochen, AU - Schuchardt,Florian, AU - Schroeder,Laure, AU - Egger,Karl, AU - Weigel,Matthias, AU - Harloff,Andreas, Y1 - 2013/12/01/ PY - 2013/03/11/received PY - 2013/11/26/accepted PY - 2013/12/3/entrez PY - 2013/12/3/pubmed PY - 2014/4/5/medline SP - 187 EP - 187 JF - BMC neurology JO - BMC Neurol VL - 13 N2 - BACKGROUND: Quantification of the optic nerve sheath diameter (ONSD) by transbulbar sonography is a promising non-invasive technique for the detection of altered intracranial pressure. In order to establish this method as follow-up tool in diseases with intracranial hyper- or hypotension scan-rescan reproducibility and accuracy need to be systematically investigated. METHODS: The right ONSD of 15 healthy volunteers (mean age 24.5 ± 0.8 years) were measured by both transbulbar sonography (9 - 3 MHz) and 3 Tesla MRI (half-Fourier acquisition single-shot turbo spin-echo sequences, HASTE) 3 and 5 mm behind papilla. All volunteers underwent repeated ultrasound and MRI examinations in order to assess scan-rescan reproducibility and accuracy. Moreover, inter- and intra-observer variabilities were calculated for both techniques. RESULTS: Scan-rescan reproducibility was robust for ONSD quantification by sonography and MRI at both depths (r > 0.75, p ≤ 0.001, mean differences < 2%). Comparing ultrasound- and MRI-derived ONSD values, we found acceptable agreement between both methods for measurements at a depth of 3 mm (r = 0.72, p = 0.002, mean difference < 5%). Further analyses revealed good inter- and intra-observer reliability for sonographic measurements 3 mm behind the papilla and for MRI at 3 and 5 mm (r > 0.82, p < 0.001, mean differences < 5%). CONCLUSIONS: Sonographic ONSD quantification 3 mm behind the papilla can be performed with good reproducibility, measurement accuracy and observer agreement. Thus, our findings emphasize the feasibility of this technique as a non-invasive bedside tool for longitudinal ONSD measurements. SN - 1471-2377 UR - https://www.unboundmedicine.com/medline/citation/24289136/Reproducibility_and_accuracy_of_optic_nerve_sheath_diameter_assessment_using_ultrasound_compared_to_magnetic_resonance_imaging_ L2 - https://bmcneurol.biomedcentral.com/articles/10.1186/1471-2377-13-187 DB - PRIME DP - Unbound Medicine ER -