EP-1245: Gated Rapidarc using KV intrafraction verification for liver stereotactic treatment

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[New external radiotherapy technologies for breast cancer]

The purpose of new radiotherapy techniques is to better deliver dose conformation in the tumour volume while diminishing organs at risk exposition. Their development is soaring in the breast cancer field in the adjuvant setting with intensity-modulated radiation therapy but also in cerebral and extracerebral oligometastastic presentation. Their usage is still being debated for breast cancer care. The objective of this narrative review is to list and discuss clinical data at our disposal for these news technologies

Techniques d’irradiation du cancer du sein en 2016 : intérêt et indications de la radiothérapie conformationnelle avec modulation d’intensité

International audienceIrradiation techniques for breast cancer (arctherapy, tomotherapy) are evolving and intensity-modulated radiation therapy is being increasingly considered for the management of these tumours. Here, we propose a review of intensity-modulated radiation therapy planning issues, clinical toxicities and indications for breast cancer

Définition et applications cliniques des radiomics

International audienceThe ultimate goal in radiation oncology is to offer a personalized treatment to all patients indicated for radiotherapy. Radiomics is a tool that reinforces a deep analysis of tumors at the molecular aspect taking into account intrinsic susceptibility in a long-term follow-up. Radiomics allow qualitative and quantitative performance analyses with high throughput extraction of numeric radiologic data to obtain predictive or prognostic information from patients treated for cancer. A second approach is to define biological or constitutional that could change the practice. This technique included normal tissue individual susceptibility but also potential response of tumors under ionizing radiation treatment. These “omics” are biological and technical techniques leading to simultaneous novel identification and exploration a set of genes, lipids, proteins.L’objectif initial en radiothérapie oncologique est de proposer une personnalisation thérapeutique en ayant une analyse fine de la tumeur notamment à l’échelle moléculaire en prenant en compte la susceptibilité individuelle notamment de réactivité des tissus sains à plus ou moins long terme. Radiomics permet une analyse qualitative et quantitative ultraperformante, consistant en l’extraction à haut débit de données numériques d’imagerie médicale afin d’obtenir des informations prédictives et/ou pronostiques concernant les patients pris en charge pour une pathologie cancéreuse. Une approche différente permet de définir la radiomics comme une information biologique somatique ou constitutionnelle qui modifiera la prise en charge par radiothérapie. Elle inclut la susceptibilité individuelle des tissus sains mais également la réponse potentielle de la tumeur à une radiothérapie. Ces « omics » sont des techniques biologiques à haut débit, permettant d’identifier et d’explorer simultanément un ensemble de gènes, lipides, protéines ou autres sujets d’étude de façon compartimentée

Radiothérapie des sarcomes des tissus mous des membres : évolution technique et impact sur le bénéfice clinique

International audienceThe standard treatment for extremity soft tissue sarcomas is based on the association of surgery and radiotherapy. This strategy allows local control improvement with the risk of increased toxicity. There is therefore a growing interest to identify those patients who will benefit from radiotherapy and those who will have the same local control with surgery alone. Furthermore, the development of toxicity has been correlated with the extension of the irradiated volume and the volume receiving high doses. Technological development as intensity modulated radiotherapy and image-guided radiotherapy allows limited irradiated volume improving the protection of the organs at risk leading to clinical benefit improvement. Moreover, efforts are being done to improve local control for the patients at high risk of local relapse. In this paper, we discuss all these mentioned aspects