Evaluating the distribution of research in radiation sciences as published in general medical physics journals

ConclusionAccording to the results, radiation oncology physics and medical imaging were the most popular issues among medical physicists. This study suggests that more attention should be given to non-ionizing radiation topics, radiobiology, and radiation protection.
Source: The Egyptian Journal of Radiology and Nuclear Medicine - Category: Nuclear Medicine Source Type: research

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ConclusionsThe review of the benchmark and rapid review QA submissions indicates that acceptable variations or unacceptable deviations for the ipsilateral lung and heart dose constraints were the most commonly observed cause of benchmark QA failure, and unacceptable deviations in target contouring, rather than normal structure contouring, were the most common cause of rapid review QA failure. These findings suggest that a rigorous QA process is necessary for high quality and homogeneity in radiation therapy in multi-institutional trials of breast cancer to ensure that the benefits of radiation therapy far outweigh the risks.
Source: Practical Radiation Oncology - Category: Cancer & Oncology Source Type: research
Abstract OBJECTIVES: To evaluate the feasibility and optimal restricted angle of the complete-directional-complete block (CDCB) technique in helical tomotherapy (HT) by including regional nodal irradiation (RNI) with the internal mammary node (IMN) in left-sided breast cancer. METHODS: Ten left-sided breast cancer patients treated with 50 Gy in 25 fractions were compared with 5-field intensity-modulated radiotherapy (5F-IMRT) and 6 types of HT plans. In the HT plans, complete block (CB), organ-based directional block (OBDB) and CDCB with different restricted angles were used. RESULTS: The conformi...
Source: The British Journal of Radiology - Category: Radiology Authors: Tags: Br J Radiol Source Type: research
Can we bill CBCT (77014) when we do IMRT? I know technical doesn't allow it but what about professional?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Radiation Oncology Source Type: forums
Condition:   Squamous Cell Carcinoma Interventions:   Procedure: transoral resection;   Radiation: IMRT Sponsor:   Gustave Roussy, Cancer Campus, Grand Paris Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
This study reports a  minute-by-minute association and calculates the impact of this displacement on duration-dependent margins using real-time intra-fractional position data monitored by four-dimensional transperineal ultrasound (4D TPUS).Materials and methodsA  total of 55 patients were recruited prospectively. Intra-fractional position of the prostate was monitored in real-time using a 4D TPUS Clarity® system. A total of 1745 monitoring sessions were analysed. Van Herk’s margin recipe (2.5∑ + 1.64((σ2 + σp2)1/2 − σp)) was used to e...
Source: Strahlentherapie und Onkologie - Category: Cancer & Oncology Source Type: research
We would offer this patient short-course radiation (25 Gy/5 daily fractions), followed by consolidation mFOLFOX (known as short-course total neoadjuvant therapy) for quicker, cheaper, less toxic, and more effective downstaging. Radiation would be delivered with standard pelvic volumes, except for lowering the superior border to S2/S3. Intensity modulated radiation therapy would only be used if small bowel exposure would exceed 25 Gy. After a 2-week break to allow resolution of radiation-induced proctitis, mFOLFOX is administered in standard fashion before tumor restaging.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
CONCLUSION: MRI-detected RRLN at three months after IMRT was an unfavorable prognostic factor for patients with NPC. We developed and validated an easy-to-use nomogram for the pretherapy prediction of RRLN. PMID: 31931288 [PubMed - as supplied by publisher]
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - Category: Radiology Authors: Tags: Radiother Oncol Source Type: research
ConclusionThis study demonstrates the feasibility of EPID for detecting the interplay effects. We recommend using thin computed tomography slices and adding sufficient tumor margin in order to limit the dosimetric organ motion in hypofractionated irradiation with preserved plan quality. In the presence of respiratory and gastrointestinal motion, tighter criteria and consequently using local gamma evaluation should be considered, especially for VMAT. This methodology offers a  substantial step forward in in vivo dosimetry and the potential to distinguish errors depending on the gamma tolerances. Thus, the approach/prot...
Source: Strahlentherapie und Onkologie - Category: Cancer & Oncology Source Type: research
Conclusions: IMPT plans improve both the target coverage and the OARs sparing, especially for the heart, cardiac substructures (LAD and LV), lungs and normal tissue, in synchronous bilateral breast radiotherapy. VMAT and HT could be selected as suboptimal techniques for SBBC patients.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Authors: Gorji KE, Sadat-Mirkazemi M, Banaei A, Abedi-Firouzjah R, Afkhami-Ardekani M, Ataei G Abstract BACKGROUND: Rectum and bladder are hallow structures and considered as critical organs in prostate cancer intensity modulated radiotherapy (IMRT). Therefore, dose received by these organ walls must be considered for prediction of radiobiological effects. Contouring the real organ walls is quite difficult and time consuming in CT/MRI images, so the easy contouring artificial walls with uniform thickness could be appropriated alternatives. OBJECTIVE: To compare reconstructed artificial walls with real walls of ...
Source: Journal of X-Ray Science and Technology - Category: Radiology Tags: J Xray Sci Technol Source Type: research
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