Off-Isocenter Winston-Lutz Test for Stereotactic Radiosurgery/Stereotactic Body Radiotherapy

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منابع مشابه

SU-F-T-547: Off-Isocenter Winston-Lutz Test for Stereotactic Radiosurgery/stereotactic Body Radiotherapy.

PURPOSE To perform a quantitative study to verify that the mechanical field center coincides with the radiation field center when both are off from the isocenter during the single-isocenter technique in linear accelerator-based SRS/SBRT procedure to treat multiple lesions. METHODS We developed an innovative method to measure this accuracy, called the off-isocenter Winston-Lutz test, and here ...

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On the selection of gantry and collimator angles for isocenter localization using Winston‐Lutz tests

In Winston-Lutz (WL) tests, the isocenter of a linear accelerator (linac) is determined as the intersection of radiation central axes (CAX) from multiple gantry, collimator, and couch angles. It is well known that the CAX can wobble due to mechanical imperfections of the linac. Previous studies suggested that the wobble varies with gantry and collimator angles. Therefore, the isocenter determin...

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Stereotactic Radiosurgery and Stereotactic Body Radiotherapy

The following Protocol contains medical necessity criteria that apply for this service. The criteria are also applicable to services provided in the local Medicare Advantage operating area for those members, unless separate Medicare Advantage criteria are indicated. If the criteria are not met, reimbursement will be denied and the patient cannot be billed. Please note that payment for covered s...

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Stereotactic Radiosurgery and Stereotactic Body Radiotherapy

©2017 Blue Cross and Blue Shield of Louisiana An independent licensee of the Blue Cross and Blue Shield Association No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without permission from Blue Cross and Blue Shield of Louisiana. Page 1 of 46 Applies to all products admin...

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Stereotactic Radiosurgery and Stereotactic Body Radiotherapy

When Policy Topic is covered Stereotactic radiosurgery using a gamma or LINAC unit may be considered medically necessary for the following indications:  arteriovenous malformations;  acoustic neuromas;  pituitary adenomas;  non-resectable, residual, or recurrent meningiomas;  craniopharyngiomas;  glomus jugulare tumors;  solitary or multiple brain metastases in patients having good perfo...

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ژورنال

عنوان ژورنال: International Journal of Medical Physics, Clinical Engineering and Radiation Oncology

سال: 2016

ISSN: 2168-5436,2168-5444

DOI: 10.4236/ijmpcero.2016.52017