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Abstract #20357 Published in IGR 10-1
Improved high-resolution ultrasonic imaging of the eye
Silverman RH; Ketterling JA; Mamou J; Coleman DJArchives of Ophthalmology 2008; 126: 94-97
Currently, virtually all clinical diagnostic ultrasound systems used in ophthalmology are based on fixed-focus, single-element transducers. High-frequency (≥20-MHz) transducers introduced to ophthalmology during the last decade have led to improved resolution and diagnostic capabilities for assessment of the anterior segment and the retina. However, single-element transducers are restricted to a small depth of field, limiting their capacity to image the eye as a whole. We fabricated a 20-MHz annular array probe prototype consisting of 5 concentric transducer elements and scanned an ex vivo human eye. Synthetically focused images of the bank eye showed improved depth of field and sensitivity, allowing simultaneous display of the anterior and posterior segments and the full lens contour. This capability may be useful in assessment of vitreoretinal pathologies and investigation of the accommodative mechanism.
Dr. R.H. Silverman, Department of Ophthalmology, Weill Medical College of Cornell University, New York, NY 10021, USA. ros2012@med.cornell.edu
Classification:
6.12 Ultrasonography and ultrasound biomicroscopy (Part of: 6 Clinical examination methods)
