AAPM TG 158: Measurement and calculation of doses outside the treated volume from external-beam radiation therapy.
Stephen F Kry,Bryan Bednarz,Rebecca M. Howell,Lawrence T. Dauer,David S Followill,Eric E. Klein,Harald Paganetti,Brian Wang,C Wuu,X. George Xu +9 more
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TLDR
Task Group 158 was formed to provide guidance for physicists in terms of assessing and managing nontarget doses and makes recommendations for both clinical and research practice.Abstract:
The introduction of advanced techniques and technology in radiotherapy has greatly improved our ability to deliver highly conformal tumor doses while minimizing the dose to adjacent organs at risk. Despite these tremendous improvements, there remains a general concern about doses to normal tissues that are not the target of the radiation treatment; any “nontarget” radiation should be minimized as it offers no therapeutic benefit. As patients live longer after treatment, there is increased opportunity for late effects including second cancers and cardiac toxicity to manifest. Complicating the management of these issues, there are unique challenges with measuring, calculating, reducing, and reporting nontarget doses that many medical physicists may have limited experience with. Treatment planning systems become dramatically inaccurate outside the treatment field, necessitating a measurement or some other means of assessing the dose. However, measurements are challenging because outside the treatment field, the radiation energy spectrum, dose rate, and general shape of the dose distribution (particularly the percent depth dose) are very different and often require special consideration. Neutron dosimetry is also particularly challenging, and common errors in methodology can easily manifest as errors of several orders of magnitude. Task Group 158 was, therefore, formed to provide guidance for physicists in terms of assessing and managing nontarget doses. In particular, the report: (a) highlights major concerns with nontarget radiation; (b) provides a rough estimate of doses associated with different treatment approaches in clinical practice; (c) discusses the uses of dosimeters for measuring photon, electron, and neutron doses; (d) discusses the use of calculation techniques for dosimetric evaluations; (e) highlights techniques that may be considered for reducing nontarget doses; (f) discusses dose reporting; and (g) makes recommendations for both clinical and research practice.read more
Citations
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AAPM TG 191 Clinical Use of Luminescent Dosimeters: TLDs and OSLDs
Stephen F Kry,Paola Alvarez,Joanna E. Cygler,Larry A. DeWerd,Rebecca M. Howell,Sanford L. Meeks,Jennifer O'Daniel,Chester S. Reft,Gabriel O. Sawakuchi,Eduardo G. Yukihara,Dimitris Mihailidis +10 more
TL;DR: This report provides general guidelines for TLD and OSLD processes and provides specific details for T LD-100 and nanoDotTM dosimeters because of their prevalence in clinical practice.
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Management of radiotherapy patients with implanted cardiac pacemakers and defibrillators: A Report of the AAPM TG‐203†
Moyed Miften,Dimitris Mihailidis,Stephen F Kry,Chester S. Reft,Carlos Esquivel,Jonathan B. Farr,David S Followill,Coen W. Hurkmans,Arthur K. Liu,Olivier Gayou,Michael S. Gossman,Mahadevappa Mahesh,Richard A. Popple,Joann I. Prisciandaro,Jeffrey D. Wilkinson +14 more
TL;DR: This task group report provides the framework that analyzes the potential failure modes of these devices and lays out the methodology for patient management in a comprehensive and concise way, in every step of the entire radiotherapy process.
Journal ArticleDOI
Management of patients with cardiac implantable electronic devices (CIED) undergoing radiotherapy: A consensus document from Associazione Italiana Aritmologia e Cardiostimolazione (AIAC), Associazione Italiana Radioterapia Oncologica (AIRO), Associazione Italiana Fisica Medica (AIFM).
Massimo Zecchin,Mara Severgnini,Alba Fiorentino,Vincenzo Livio Malavasi,Loris Menegotti,Filippo Alongi,Domenico Catanzariti,Barbara Alicja Jereczek-Fossa,Michele Stasi,Elvio G. Russi,Giuseppe Boriani +10 more
TL;DR: A consensus document is presented as a result of a multidisciplinary working group involving cardiac electrophysiologists, radiation oncologists and physicists in order to stratify the risk of patients with CIED requiring RT and approaching RT sessions appropriately.
Journal ArticleDOI
Adaptations to a Generalized Radiation Dose Reconstruction Methodology for Use in Epidemiologic Studies: An Update from the MD Anderson Late Effect Group.
TL;DR: An update to the most widely used dose reconstruction methodology for epidemiologic studies, analytical model calculations combined with a 3D age-specific computational phantom is provided.
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Journal ArticleDOI
Effects of radiotherapy and of differences in the extent of surgery for early breast cancer on local recurrence and 15-year survival: an overview of the randomised trials.
Mike Clarke,Rory Collins,Sarah C. Darby,C Davies,P. Elphinstone,V Evans,J Godwin,Richard Gray,C. Hicks,Spencer L. James,E MacKinnon,Paul McGale,T McHugh,Richard Peto,Carolyn W. Taylor,Yaochen Wang +15 more
TL;DR: It is found that variations in local treatment that substantially affect the risk of locoregional recurrence could also affect long-term breast cancer mortality, and that avoidance of a local recurrence in the conserved breast is recommended.