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Ophthalmology. 2004 Jun;111(6):1238-43.

A 3-dimensional ultrasound C-scan imaging technique for optic nerve measurements.

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1
The New York Eye & Ear Infirmary, New York, New York, USA.

Abstract

PURPOSE:

To evaluate the use of 3-dimensional ultrasound C-scan imaging for optic nerve diameter measurements.

DESIGN:

Prospective observational case series.

PARTICIPANTS:

Thirty-eight normal eyes of 32 healthy adults.

METHODS:

Coronal C-scans of 38 normal optic nerves were imaged 3 mm behind the globe.

MAIN OUTCOME MEASURES:

Optic nerve sheath diameter (ONSD) and optic nerve diameter (OND).

RESULTS:

Mean ONSD was 4.8 mm (range: 3.9-5.9; SD 0.6), whereas mean optic OND was 1.9 mm (range: 1.8-2.1; SD 0.1). Mean ONSDs were 4.9 mm (male), 4.5 mm (female), 5.0 mm (subjects younger than 50 years), and 4.6 mm (subjects 50 and older).

CONCLUSION:

Coronal C-scans generated from 3-dimensional ultrasound can be used to measure the optic nerve diameters in adult eyes.

PMID:
15177978
DOI:
10.1016/j.ophtha.2003.10.026
[Indexed for MEDLINE]
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