Validation of Dolphin dosimetry in three dimensional patient-specific quality assurance programme

ConclusionsThe commissioning and validation of dosimetry was performed with the help of various fields, MLC patterns and complex treatment plans. The present study also evaluated the efficiency of the 3D dosimetry system for the QA of complex treatment plans.
Source: Reports of Practical Oncology and Radiotherapy - Category: Cancer & Oncology Source Type: research

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Publication date: January 2020Source: Radiation Physics and Chemistry, Volume 166Author(s): Fang-Yu Liu, Zhi-Wei Dong, Hui-Bin Yang, Hong-Yun ShiAbstractEven with advanced inverse intensity modulated radiation therapy (IMRT) technique, the optimization of treatment plans remains a time-consuming task and the outcome is highly influenced by the experience of the planner and time pressure. Automated treatment planning is a current hot topic and new frontier in radiotherapy, which is expected to minimize the above problems. The quality and efficacy of the IMRT plans generated by the Auto-Planning module of the Pinnacle3 treat...
Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
ConclusionThis survey was an informative trial to understand the verification status of patient-specific IMRT QA measurements for prostate cancer. In most institutions, the point dose measurement and dose distribution differences met the desired criteria.
Source: Reports of Practical Oncology and Radiotherapy - Category: Cancer & Oncology Source Type: research
Conclusions: We describe here the first report of a potential abscopal effect in meningioma, summarize the limited literature on the topic of abscopal effects in cancer, and detail the existing hypothesis on how this phenomenon may occur and possibly relate to the development of future treatments for patients with metastatic disease.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
ConclusionUsing robust optimization for skin flash in breast IMRT planning is feasible. Further investigation is warranted to confirm the clinical effectiveness of this novel approach.
Source: Practical Radiation Oncology - Category: Cancer & Oncology Source Type: research
Conditions:   Oropharynx Cancer;   Oropharynx Squamous Cell Carcinoma;   Carcinoma, Squamous Cell;   Carcinoma;   Oropharyngeal Neoplasms;   Neoplasms, Squamous Cell;   Neoplasms, Glandular and Epithelial;   Neoplasms by Histologic Type;   Pharyngeal Neoplasms Malignant and Unspecif ied;   Otorhinolaryngologic Neoplasms;   Head and Neck Neoplasms;   Neoplasms by Site;   Otorhinolaryngologic Diseases;   Pharyngeal Diseases...
Source: - Category: Research Source Type: clinical trials
Older patients undergoing radiation therapy (RT) for pelvic malignancies are at increased risk for pelvic fracture, which is associated with significant morbidity and mortality. RT techniques such as brachytherapy or intensity modulated RT (IMRT) allow for more conformal dose distributions, but it is not known whether the risk for pelvic fracture varies by RT modality.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
Conclusion: IMRT-based CCRT resulted in higher survival rates in patients with advanced clinical stages of TESCC (i.e., IIIA–IIIC), namely, clinical T3, clinical T4, or lymph node involvement.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
This Viewpoint discusses details of the Radiation Oncology Model, a 90-day episode-based alternative payment model proposed by the Centers for Medicare&Medicaid Services (CMS) intended to reduce inappropriate overuse of proton beam therapy, intensity-modulated radiation therapy (IMRT), and other expensive radiation oncology services.
Source: JAMA - Journal of the American Medical Association - Category: General Medicine Source Type: research
era S Abstract Adjuvant radiotherapy is a key treatment in early-stage breast cancer. The meta-analysis by the Early Breast Cancer Trialist's Collaborative Group (EBCTCG) has demonstrated a decreased risk of locoregional relapse and death after whole-breast radiotherapy. Prophylactic lymph nodes irradiation in breast cancer has also proven to be beneficial in several therapeutic trials. At a time when three-dimensional conformal radiotherapy has become the standard procedure and with the development of intensity-modulated radiation therapy, defining nodal volumes is essential and practices should be harmonized to ...
Source: Cancer Radiotherapie - Category: Cancer & Oncology Authors: Tags: Cancer Radiother Source Type: research
Abstract The incidence of brain metastases is increasing and various treatment modalities exist for brain metastases. The aim of this study was to investigate the dosimetric quality and delivery efficiency of robotic radiosurgery (CyberKnife) for multiple brain metastases compared with C-arm linear accelerator (linac) based plans. C-arm linac based plans included intensity-modulated radiation therapy (IMRT), volumetric modulated arc therapy (VMAT) and non-coplanar VMAT with 1, 3 and 5 non-coplanar arcs, respectively (NC1, NC3 and NC5). For 20 patients, six plans with a prescription dose of 30 Gy in three frac...
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
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