Purchase this article with an account.
D Coleman, MJ Rondeau, RH Silverman, AV Arya, H Lincoff, FL Lizzi; Image Fusion Using OCT and High Frequency Ultrasound for Enhanced Definition of the Posterior Pole of the Eye . Invest. Ophthalmol. Vis. Sci. 2002;43(13):2549.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
Purpose: Enhance anatomic detailing of the coats of the posterior pole of the eye. Methods: Concurrent OCT Slit Lamp images were used for localization of subsequent ultrasound images. Grey scale OCT images and deconvolved, de-noised analytic magnitude high frequency ultrasound B-scans (15-25 MHz) were reformatted and interpolated to a common geometric space. Image co-registration was performed using the apical RPE and image segment boundaries as fiducial markers along with affine transformation using multi-variate minimization. Information fusion with multi-resolution and Bayesian optimization methods was then performed. Results: In a series of patients, good empirical matches can be made between OCT and US in co-localization of the ILM and apical RPE. Combined OCT and US images provide improved resolution of retinal layers and better definition of the choroid in a single image. Conclusion: Enhanced details with two-dimensional data acquisition imaging improves selection and evaluation of disease states, as well as of the effects of treatment modalities, such as laser or systemic medication.
This PDF is available to Subscribers Only