Spectral Domain OCT: A Practical Guide Shaun Dacosta, Babu Rajendran, P Janakiraman
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1Spectral Domain Optical Coherence Tomography A Practical Guide
2Spectral Domain Optical Coherence Tomography A Practical Guide
Shaun Dacosta Senior Consultant The Eye Research Foundation Vijaya Hospital, 180 Arcot Road Chennai, Tamil Nadu (India) Babu Rajendran Medical Director The Eye Research Foundation Vijaya Hospital, 180 Arcot Road Chennai, Tamil Nadu (India) P Janakiraman Assistant Medical Director The Eye Research Foundation Vijaya Hospital, 180 Arcot Road Chennai, Tamil Nadu (India)
3Published by
Jitendar P Vij
Jaypee Brothers Medical Publishers (P) Ltd
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Spectral Domain OCT A Practical Guide
© 2008, Jaypee Brothers Medical Publishers
All rights reserved. No part of this publication should be reproduced, stored in a retrieval system, or transmitted in any form or by any means: electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the authors and the publisher.
This book has been published in good faith that the material provided by authors is original. Every effort is made to ensure accuracy of material, but the publisher, printer and authors will not be held responsible for any inadvertent error(s). In case of any dispute, all legal matters are to be settled under Delhi jurisdiction only.
First Edition: 2008
9788184483116
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4To our
Parents, Teachers, Families and Patients, who made us what we are today
5ACKNOWLEDGMENTS
This book would not have been possible without the whole hearted cooperation of several people who knowingly or unknowingly contributed to it being a reality.
Learning a new technology and equipment meant that many of our patients had to sit through several sessions. We are tremendously grateful to each and every one of them.
The writing of this meant a great deal of rescheduling of the normal outpatient routine in the organization. We are very grateful to each and every one of our colleagues who put up with this inconvenience to make this possible.
We are extremely grateful to M/s TOPCON (Singapore) and M/s MEHRA EYETECH PVT LTD who have stood by us during the learning process and answered our innumerable doubts and cleared our many teething problems. Instead of reinventing the wheel, we have used portions of their operations manual and are grateful to them for the permission.
To our families who put up with our idiosyncrasies during the strains of putting this together we are ever grateful.
6PREFACE
“Technology feeds on itself. Technology makes more technology possible.”
- Alvin Toffler
Just as we were getting used to Optical Coherence Tomography, and began raving about its wonderful potential and its many uses, comes an enhanced and more precise technology called Spectral Domain OCT. It enhances the wide potential of 2D-OCT and is more precise with less interpolation in the interpretation of results.
Several companies manufacture different types of machines using the principle of Spectral Domain OCT. The TOPCON© 3D-OCT-1000 is inbuilt with a non mydriatic fundus camera and therefore has the unique ability of capturing the color picture and the OCT in one sitting and rather quickly making it comfortable for both patient and doctor.
While several books are available on OCT and its interpretation, this is possibly one of the early ones to be a practical guide to the beginner to this new and exciting technology.
We have attempted to outline a step by step approach to image capturing, analysis and interpretation with a large collection of selected cases.
We hope this book will generate the excitement in the reader enough to want to delve into this new 3D domain as much as it did in all of us when we were first exposed to it.
Before long this technology will be enhanced with the addition of Adaptive Optics to the OCT technology. This will enable cellular level resolution rather than the present day tissue level pictures. Till that time enjoy the present and the book.
Shaun Dacosta
Babu Rajendran
P Janakiraman
“Many a time, the reading of a book has made the future of a man.”
— Ralph Waldo Emerson