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Radiat Oncol 2021 Feb 27;16(1):45. Epub 2021 Feb 27.

Radiation Oncology Department, Pitié-Salpêtrière Hospital, AP-HP Sorbonne University, 47-83 Boulevard de l'Hôpital, 75651, Paris Cedex 13, France.

Purpose: To compare linac-based mono-isocentric radiosurgery with Brainlab Elements Multiple Brain Mets (MBM) SRS and the Gamma Knife using a specific statistical method and to analyze the dosimetric impact of the target volume geometric characteristics. A dose fall-off analysis allowed to evaluate the Gradient Index relevancy for the dose spillage characterization.

Material And Methods: Treatments were planned on twenty patients with three to nine brain metastases with MBM 2. Read More

Artif Cells Nanomed Biotechnol 2021 Dec;49(1):185-193

Medical Physics Group, Department of Physics, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.

To enhance the efficacy of radiation therapy, functionalised core-shell nanoparticles (CS NPs) are used as a radiosensitizer. These NPs can act as a therapeutic agent and carrier for other therapeutic agents. In this study, the first poly-acrylic acid modified silver-coated titanium dioxide NPs were fabricated to evaluate the radiation dose enhancement within the human tissue equivalent polymer gel after investigating the biocompatibility. Read More

Int J Part Ther 2021 28;7(3):34-45. Epub 2021 Jan 28.

Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.

Introduction: The intracranial skull-base meningioma is in proximity to multiple critical organs and heterogeneous tissues. Steep dose gradients often result from avoiding critical organs in proton treatment plans. Dose uncertainties arising from setup errors under image-guided radiation therapy are worthy of evaluation. Read More

Phys Med 2021 Feb 13;82:64-71. Epub 2021 Feb 13.

Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08028 Barcelona, Spain.

Introduction: Interventional procedures are associated with potentially high radiation doses to the skin. The 2013/59/EURATOM Directive establishes that the equipment used for interventional radiology must have a device or a feature informing the practitioner of relevant parameters for assessing patient dose at the end of the procedure. Monte Carlo codes of radiation transport are considered to be one of the most reliable tools available to assess doses. Read More

Front Plant Sci 2020 28;11:611247. Epub 2021 Jan 28.

Department of Plant Biology, University of Pécs, Pécs, Hungary.

Ultraviolet-B (UV-B; 280-315 nm) radiation induces the biosynthesis of secondary plant metabolites such as flavonoids. Flavonoids could also be enhanced by blue (420-490 nm) or green (490-585 nm) light. Flavonoids act as antioxidants and shielding components in the plant's response to UV-B exposure. Read More