Summary
Thin ocular layers can be characterized by analyzing RF echo signals in the time domain and/or in the frequency domain. In the first case the time interval between pulses reflected from anterior and posterior surfaces gives immediately the thickness measurement if the sound velocity is known. In the second case, by considering that the power spectrum can be interpreted as a plot of tissue reflectivity vs frequency, the above mentioned time interval is obtained as the inverse of the difference between two successive frequencies of the power spectrum.
The first results in a group of eyes are reported.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bayer AL, Thijssen JM. 1981. In vivo characterization of intraocular membranes. In: JM Thijssen and AM Verbeek (eds) Ultrasonography in Ophthalmology. Doc Ophthal Proc Ser, Vol. 29, Junk, The Hague, pp. 411–418.
Cennamo G, Daponte P, Savastano M. 1985. Misura dello spessore della retina in vivo. Riunione Annuale Societa Ecoftalmologica, Ferrara.
Cennamo F, Luciano AL, Savastano M. 1985. Real Time Analysis of Echographie Signal. IMACS Congress, Oslo.
Coleman DJ, Lizzi FL. 1979. In Vivo Choroidal Thickness Measurement. Amer J Ophthal 88: 369–375.
Daponte P, Landi C. 1986. The Universal Waveform Analyzer as Intelligent Measurement Apparatus. IMEKO Congress, Jena.
Daponte P, Savastano M. 1986. Noise Problems in Ophthalmic Echography. IMEKO Congress, Como.
Tane S, Kohno J, Horikoshi J, Kondo K, Ohasi K, Komatsu A, Kakehashi T. 1984. The study on the Microscopic Biometry of the Thickness of the Human Retina, Choroid and Sclera by Ultrasound. Acta Soc Ophthalmol, Jpn 88:1412.
Trier HG, Decker D, Lepper RD, Irion KM, Reuter R, Kottow M, Muller R, Otto KJ. 1984. Ocular Tissue Characterization by RF-signal analysis: summary of the Bonn/Stuttgart in vivo-study. In: JS Hillmann and MM Lemay (eds) Ophthalmic Ultrasonography. Doc Ophthal Proc Ser, Vol. 38, Junk, The Hague, pp. 455–466.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1988 Kluwer Academic Publishers
About this chapter
Cite this chapter
Cennamo, G., Daponte, P., Savastano, M. (1988). Retinal biometry by RF signal analysis. In: Thijssen, J.M., Hilman, J.S., Gallenga, P.E., Cennamo, G. (eds) Ultrasonography in Ophthalmology 11. Documenta Ophthalmologica Proceedings Series, vol 51. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1311-0_14
Download citation
DOI: https://doi.org/10.1007/978-94-009-1311-0_14
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7083-6
Online ISBN: 978-94-009-1311-0
eBook Packages: Springer Book Archive