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Correlation of measurement of optic nerve sheath diameter using ultrasound with magnetic resonance imaging.
Indian J Crit Care Med. 2015 Aug; 19(8):466-70.IJ

Abstract

BACKGROUND AND AIMS

Analysis to correlate the measurements of optic nerve sheath diameter (ONSD) obtained by using ultrasound to magnetic resonance imaging (MRI) techniques in order to establish the accuracy of ocular sonography as a noninvasive modality for detecting raised intracranial pressure (ICP).

MATERIALS AND METHODS

A prospective, observational study was performed in 100 cases of adult meningoencephalitis patients admitted to Intensive Care Unit in whom MRI was performed for neurodiagnosis. ONSD was measured in such patients, 3 mm behind the globe in each eye. A mean binocular ONSD >4.6 mm in female and 4.8 mm in male was taken as cut-off values for diagnosing raised ICP. This was compared with ONSD measured on T2-weighted MRI image measured 3 mm behind the globe. The reading obtained from both the methods were compared with Bland-Altman analysis for correlation and the findings were tabulated.

RESULTS

The mean ONSD values measured with ultrasonography (USG) and MRI for female were 5.48 ± 0.43 mm and 5.68 ± 0.44 mm and for male were 5.40 ± 0.37 mm and 5.56 ± 0.38 mm, respectively. The mean age of the female and male was 53.90 ± 17.84 and 56.06 ± 15.67 years, respectively. On comparing ultrasound with MRI-derived ONSD values, we found acceptable agreement between both methods for measurements at a depth of 3 mm (r = 0.02, P < 0.001).

CONCLUSION

In our study, we have found a good correlation between ocular USG and MRI of ONSD. The study has shown agreement with the fact that ocular sonography can be used as a noninvasive tool for detecting raised ICP with accuracy.

Authors+Show Affiliations

Department of Critical Care Medicine, Yashoda Super Speciality Hospital, Hyderabad, Telangana, India.Department of Critical Care Medicine, Yashoda Super Speciality Hospital, Hyderabad, Telangana, India.Department of Critical Care Medicine, Yashoda Super Speciality Hospital, Hyderabad, Telangana, India.Department of Radiology, Yashoda Super Speciality Hospital, Hyderabad, Telangana, India.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26321806

Citation

Shirodkar, Chetan G., et al. "Correlation of Measurement of Optic Nerve Sheath Diameter Using Ultrasound With Magnetic Resonance Imaging." Indian Journal of Critical Care Medicine : Peer-reviewed, Official Publication of Indian Society of Critical Care Medicine, vol. 19, no. 8, 2015, pp. 466-70.
Shirodkar CG, Munta K, Rao SM, et al. Correlation of measurement of optic nerve sheath diameter using ultrasound with magnetic resonance imaging. Indian J Crit Care Med. 2015;19(8):466-70.
Shirodkar, C. G., Munta, K., Rao, S. M., & Mahesh, M. U. (2015). Correlation of measurement of optic nerve sheath diameter using ultrasound with magnetic resonance imaging. Indian Journal of Critical Care Medicine : Peer-reviewed, Official Publication of Indian Society of Critical Care Medicine, 19(8), 466-70. https://doi.org/10.4103/0972-5229.162465
Shirodkar CG, et al. Correlation of Measurement of Optic Nerve Sheath Diameter Using Ultrasound With Magnetic Resonance Imaging. Indian J Crit Care Med. 2015;19(8):466-70. PubMed PMID: 26321806.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Correlation of measurement of optic nerve sheath diameter using ultrasound with magnetic resonance imaging. AU - Shirodkar,Chetan G, AU - Munta,Kartik, AU - Rao,S Manimala, AU - Mahesh,M Uma, PY - 2015/9/1/entrez PY - 2015/9/1/pubmed PY - 2015/9/1/medline KW - Intensive Care Unit KW - magnetic resonance imaging KW - ocular sonography KW - optic nerve sheath diameter KW - raised intracranial pressure SP - 466 EP - 70 JF - Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine JO - Indian J Crit Care Med VL - 19 IS - 8 N2 - BACKGROUND AND AIMS: Analysis to correlate the measurements of optic nerve sheath diameter (ONSD) obtained by using ultrasound to magnetic resonance imaging (MRI) techniques in order to establish the accuracy of ocular sonography as a noninvasive modality for detecting raised intracranial pressure (ICP). MATERIALS AND METHODS: A prospective, observational study was performed in 100 cases of adult meningoencephalitis patients admitted to Intensive Care Unit in whom MRI was performed for neurodiagnosis. ONSD was measured in such patients, 3 mm behind the globe in each eye. A mean binocular ONSD >4.6 mm in female and 4.8 mm in male was taken as cut-off values for diagnosing raised ICP. This was compared with ONSD measured on T2-weighted MRI image measured 3 mm behind the globe. The reading obtained from both the methods were compared with Bland-Altman analysis for correlation and the findings were tabulated. RESULTS: The mean ONSD values measured with ultrasonography (USG) and MRI for female were 5.48 ± 0.43 mm and 5.68 ± 0.44 mm and for male were 5.40 ± 0.37 mm and 5.56 ± 0.38 mm, respectively. The mean age of the female and male was 53.90 ± 17.84 and 56.06 ± 15.67 years, respectively. On comparing ultrasound with MRI-derived ONSD values, we found acceptable agreement between both methods for measurements at a depth of 3 mm (r = 0.02, P < 0.001). CONCLUSION: In our study, we have found a good correlation between ocular USG and MRI of ONSD. The study has shown agreement with the fact that ocular sonography can be used as a noninvasive tool for detecting raised ICP with accuracy. SN - 0972-5229 UR - https://www.unboundmedicine.com/medline/citation/26321806/Correlation_of_measurement_of_optic_nerve_sheath_diameter_using_ultrasound_with_magnetic_resonance_imaging_ L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26321806/ DB - PRIME DP - Unbound Medicine ER -
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