Technique alternatives for breast radiation oncology: Conventional radiation therapy to tomotherapy
| Autor: | Fournier-Bidoz N, Kirova Y, Campana F, El Barouky J, Zefkili S, Dendale R, Bollet M, Mazal A, Fourquet A |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Journal of Medical Physics, Vol 34, Iss 3, Pp 149-152 (2009) |
| Druh dokumentu: | article |
| ISSN: | 0971-6203 1998-3913 |
| Popis: | Breast conserving radiotherapy uses tangential fields and compensating wedges. This conventional approach can be improved by a field-in-field technique using the linac multi-leaf collimator (MLC). A simplified field-in-field technique that planners can easily achieve and which improves dose uniformity in the breast volume is presented here. Field junction problems are more easily solved by the use of a virtual simulation. A unique isocenter can be set at the junction between the supra-clavicular field and the breast tangential fields. However, careful quality assurance of the treatment planning system must be performed. Tomotherapy has promising clinical advantages: the ability of a tomographic image to correct for random set-up errors, a continuous cranio-caudal delivery which suppresses junction problems, the conformality of the dose distribution throughout the complex volumes formed by the lymph nodes and the breasts. Tomotherapy is a valuable recourse for complex irradiations like bilateral breast or mammary plus axillary irradiation while a field-in-field associated with a unique isocenter technique can be used for majority of the patients. |
| Databáze: | Directory of Open Access Journals |
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