Cover

Current and Future Management of Brain Metastasis

Editor(s): Kim D.G. (Seoul) 
Lunsford L.D. (Pittsburgh, Pa.) 
Table of Contents
Vol. 25, 2012
Section title: Radiosurgery
Kim DG, Lunsford LD (eds): Current and Future Management of Brain Metastasis. Prog Neurol Surg. Basel, Karger, 2012, vol 25, pp 139–147
(DOI:10.1159/000331187)

Radiosurgical Dose Selection for Brain Metastasis

Yu J.B. · Schulder M. · Knisely J.
aYale University School of Medicine, Department of Therapeutic Radiology, Smilow Cancer Hospital, New Haven, Conn., and Departments of bNeurosurgery and cRadiation Medicine, North Shore University Hospital, Hofstra North Shore LIJ School of Medicine, Manhasset, N.Y., USA

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Article / Publication Details

First-Page Preview
Abstract of Radiosurgery

Published online: 1/6/2012
Cover Date: 2012

Number of Print Pages: 9
Number of Figures: 0
Number of Tables: 0

ISBN: 978-3-8055-9617-6 (Print)
eISBN: 978-3-8055-9618-3 (Online)

Abstract

Dose selection for brain metastasis radiosurgery is based largely upon clinical data obtained over a half century of radiosurgical treatments for various benign and malignant conditions. It is expected that within the entire radiosurgical process, the step of dose selection will occur within a framework of accurate calibration of dose delivery and accurate and detailed imaging for planning the radiosurgical treatment. Brain metastasis radiosurgery should seek lifelong, uncomplicated control. A low radiosurgery dose that will not control the tumor will not achieve this therapeutic goal, and neither will a radiosurgery dose that controls the tumor but causes symptomatic brain radiation necrosis. The volume of the metastasis being targeted and the volume of normal tissues receiving substantial radiosurgical doses are of paramount importance in dose selection. A high degree of conformality of the high-dose radiosurgical treatment volume to the metastasis has been shown to decrease complications, as does a steep dose gradient between the metastasis and adjacent normal brain tissue. A dose-escalation trial conducted by the Radiation Therapy Oncology Group that differentially dose-escalated radiosurgical doses for tumors of different sizes established that single-fraction doses between 15 and 24 Gy are relatively safe in patients who have received prior fractionated radiation therapy to the brain. Corresponding data do not exist for patients who are treated with primary radiosurgery and no whole brain radiation therapy. A dose-escalation trial for three-fraction radiosurgical treatment of brain metastases is being conducted at Stanford. Knowledge of prior whole brain radiation therapy treatment details, including the dose delivered and the time interval since that treatment was given may affect the choice of radiosurgical dose, as may recent administration of systemic, radiation-potentiating chemotherapy. Physician knowledge and careful judgment, together with careful treatment planning and delivery can minimize the risks associated with brain metastasis radiosurgery.


Article / Publication Details

First-Page Preview
Abstract of Radiosurgery

Published online: 1/6/2012
Cover Date: 2012

Number of Print Pages: 9
Number of Figures: 0
Number of Tables: 0

ISBN: 978-3-8055-9617-6 (Print)
eISBN: 978-3-8055-9618-3 (Online)


Copyright / Drug Dosage

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 or, in the case of photocopying, direct payment of a specified fee to the Copyright Clearance Center.
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 goverment 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.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.