IMRT, IGRT, SBRT - Advances in the Treatment Planning and Delivery of Radiotherapy
Editor(s): Meyer, J.L. (San Francisco, CA)Kavanagh, B.D. (Aurora, CO)
Purdy, J.A. (Sacramento, CA)
Timmerman, R. (Dallas, TX)
I. IMRT and IGRT Techniques and Technology
Four-Dimensional Imaging and Treatment Planning of Moving TargetsChen G.T.Y. · Kung J.H. · Rietzel E.Department of Radiation Oncology, Massachusetts General Hospital, Boston, Mass. , USA
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Article / Publication Details
Published online: July 13, 2007
Cover Date: 2007
Number of Print Pages: 13
Number of Figures: 0
Number of Tables: 0
ISBN: 978-3-8055-8199-8 (Print)
eISBN: 978-3-318-01415-0 (Online)
Abstract
Four-dimensional CT acquisition is commercially available, and provides important information on the shape and trajectory of the tumor and normal tissues. The primary advantage of four-dimensional imaging over light breathing helical scans is the reduction of motion artifacts during scanning that can significantly alter tumor appearance. Segmentation, image registration, visualization are new challenges associated with four-dimensional data sets because of the overwhelming increase in the number of images. Four-dimensional dose calculations, while currently laborious, provide insights into dose perturbations due to organ motion. Imaging before treatment (image guidance) improves accuracy of radiation delivery, and recording transmission images can provide a means of verifying gated delivery.
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Article / Publication Details
Published online: July 13, 2007
Cover Date: 2007
Number of Print Pages: 13
Number of Figures: 0
Number of Tables: 0
ISBN: 978-3-8055-8199-8 (Print)
eISBN: 978-3-318-01415-0 (Online)
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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