Characterization of the first RF coil dedicated to 1.5 T MR guided radiotherapy.

In conclusion, the investigated MR-coil can be utilized for treatments with the 1.5T-linac system. However, there is still significant room for improvement when considering both the dosimetric and imaging performance of the coil. PMID: 29260729 [PubMed - as supplied by publisher]
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol 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
This study investigated the variations of rectal motion and wall thickness in prostate intensity-modulated radiotherapy using a novel 2D probability density function. To evaluate the impact of the position, thickness, and deformation of the rectum on the dose distribution in prostate intensity-modulated radiotherapy plans, probability density functions (pdf) of the deformation of rectal cross-section (DW), rectal dose distribution (RM), and changes in rectal wall thickness (TW) were used in the planning optimization.
Source: Journal of Medical Imaging and Radiation Sciences - Category: Radiology Authors: Tags: Research Article Source Type: research
In order to inform IMRT delivery and future trials in ASCC, we performed a retrospective analysis of a UK population of 385 patients, treated with national guidance; and report patterns and predictors of failure. Our guidance results in negligible regional relapse rate in areas with no disease at outset with a high relapse at the primary site. Our study supports efforts to maximise local disease management in the post IMRT era.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: 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
Intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) are standard physical technologies of stereotactic body radiotherapy (SBRT) that are used for patients with non-small-cell lu...
Source: BioMedical Engineering OnLine - Category: Biomedical Engineering Authors: Tags: Research Source Type: research
The safety and efficacy of transcatheter arterial chemoembolization (TACE) plus intensity-modulated radiotherapy (IMRT) combined with sorafenib in hepatocellular carcinoma (HCC) showing macrovascular invasion (MVI) remain controversial. The records of 63 patients with HCC showing MVI, who underwent IMRT plus TACE combined with (28 participants; Group A) or without (35 participants; Group B) sorafenib from 2015 to 2018, were retrospectively reviewed to assess the progression-free survival (PFS), overall survival (OS), and treatment-associated toxicity. The median PFS was longer in Group A (13.6 months) than in Group B (9.2 ...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
CONCLUSIONS: It is possible to perform TM measurements at the SSD which produces the best fit between the area at dmax in which the dose map is calculated and the size of the monitored target. PMID: 31609090 [PubMed - as supplied by publisher]
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys 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
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