New Data Reinforce Benefits of TomoTherapy(R) Platform for Mainstream Radiation Therapy Treatment Indications
Multiple Studies Presented at ESTRO 36 Demonstrate System Improves Tumor Control withReduced Toxicities SUNNYVALE, Calif., May 11, 2017 -- (Healthcare Sales &Marketing Network) -- Accuray Incorporated (NASDAQ: ARAY) announced today that studies contin... Devices, Oncology Accuray, TomoTherapy, radiotherapy, IMRT
We examined whether the dose –volume histogram obtained from the tongue surface model correlates with mucositis severity, and whether it is useful for predicting acute radiation tongue mucositis in patients with head and neck cancer treated with intensity-modulated radiation therapy. Thirty-six patients who received intensity -modulated radiation therapy for head and neck cancer were analysed for acute radiation tongue mucositis according to the Common Terminology Criteria for Adverse Events, version 4.0, as well as the Radiation Therapy Oncology Group scoring systems.
The aim of this study was to analyze the impact of different radiation techniques on the long-term incidence of osteoradionecrosis in head and neck cancer. Risk factors and the occurrence of osteoradionecrosis were analyzed in a retrospective, comparative, observational study. Medical files and radiological images of 109 patients treated with primary intensity-modulated radiation therapy (IMRT) and 129 patients treated with primary three-dimensional conformal radiotherapy (3D-CRT) were evaluated.
Conclusions: The clinical results suggest that IMRT concurrent with chemotherapy isan effective treatment with acceptable toxicity for advanced cervical cancer with positive lymph nodes.
The purpose of this study was to investigate the dosimetric impact of weight loss in head and neck (H&N) patients and examine the effectiveness of adaptive planning. Data was collected from 22 H&N cancer patients who experienced weight loss during their course of radiotherapy. The robustness of Intensity Modulated Radiation Therapy (IMRT) and Volumetric Modulated Arc Therapy (VMAT) treatment plans were compared including the potential need for replanning. The dosimetric impact of weight loss was evaluated by calculating a verification plan for each patient on an assessment CT scan taken during the course of treatment.
Conclusions: A LASSO-based multivariable NTCP model comprising three important predictors (platelet count, risk group and V65) was established to predict the incidence of grade 2+ late rectal bleeding after IMRT.
The aim of this study was to compare the plan quality of magnetic-resonance image-based intensity modulated radiation therapy (MRI-based-IMRT) with the MRIdian Linac system to that of volumetric modulated arc ...
AbstractPurposeThe present work aims at evaluating intensity-modulated radiation therapy with simultaneous integrated boost (IMRT-SIB) in squamous cell carcinomas (SCC) of the larynx and hypopharynx.Methods/patientsWe performed a single institutional retrospective analysis on 116 pharyngo (29%)-laryngeal (71%) SCC patients (93% male) treated with IMRT-SIB to 66 –69.96 Gy in 33 fractions between 2008 and 2016. Those who underwent surgery (54%) received adjuvant radiation of 66 Gy at 2 Gy/fraction to the surgical bed. 16 patients (14%) were treated for a local recurrence after prior surgery. High-risk ly...
The definition of clinical target volume (CTV) in intensity modulated radiation therapy (IMRT) for nasopharyngeal carcinoma (NPC) has not been addressed. We performed this study to assess the feasibility and e...
A 13-year-old female was diagnosed with a ponto- medullary brainstem glioma and following unsuccessful treatment with chemotherapy, underwent focal photon intensity modulated radiation therapy that resulted in a favorable response. Ten years later, the patient presented with acute onset left-sided hemiplegia and headaches. Magnetic resonance imaging (MRI) at presentation showed a large contrast- enhancing lesion with surrounding vasogenic edema and reduced diffusivity on diffusion- weighted imaging most concerning for a high grade secondary malignancy (Figure 1).
CONCLUSIONS: Postoperative IMRT significantly improved the overall survival outcomes in patients with HCC and PVTT after partial hepatectomy +/- thrombectomy. PMID: 31176205 [PubMed - as supplied by publisher]