Journal of medical physics and applied sciences is an international peer reviwed journal aiming to publish the most relevant and recent research works across the world. Medical Physicists will contribute to maintaining and improving the quality, safety and cost-effectiveness of healthcare services through patient-oriented activities requiring expert action, involvement or advice regarding the specification, selection, acceptance testing, commissioning, quality assurance/control and optimised clinical use of medical devices and regarding patient risks and protection from associated physical agents (e.g. x-rays, electromagnetic fields, laser light, radionuclides) including the prevention of unintended or accidental exposures; all activities will be based on current best evidence or own scientific research when the available evidence is not sufficient. Medical physics is also called biomedical physics, medical biophysics or applied physics in medicine is, generally speaking, the application of physics concepts, theories and methods to medicine or healthcare.

We are sharing one of the most cited article from our journal. Article entitled “Dose Homogeneity in Surface Applicator Overlapping and Non-Overlapping Region Using Homemade Bolus with 3D Printer in INTRABEAM System for Skin Cancer” was well written by Dr. Rajan Prajapati.

Abstract

The Carl Zeiss INTRABEAM system is a mobile compact miniature x-rays device which delivers treatment by various techniques; including intraoperative, interstitial, intra-cavity, and surface treatments. The main purpose of the study was to observe dose homogeneity in surface applicator overlapping and non-overlapping region using 3D printed bolus in INTRABEAM System for skin cancer treatment. Dose uniformity plays a crucial role between overlapping and non-overlapping region of applicator during dose delivery in skin cancer. The different thickness, shape (concave, convex) and filament densities of ABS (Acrylonitrile Butadiene Styrene) were made to form main body parts of bolus for surface applicator of diameter 4 cm in Carl Zeiss INTRABEAM system with the help of German RepRap 3D printer. Concave and Convex part refer to the structures similar to the cross section of concave and convex lens respectively. GafChromic eBT films which were irradiated with 50 kV x-ray with surface applicator in presence of bolus. After that films were scanned with an EPSON® Expression 10000 XL/Pro flatbed scanner and dose profile were plotted with ImageJ Software, from which dose homogeneity was determined. The dose profiles were plotted for the different combination (filament density) of concave and convex parts of bolus (printed from 3D printer) with thickness 5 mm, 6 mm, 7 mm, 8 mm, 9 mm and 10 mm. From the plotted profiles, the maximum flat profile was seen in the bolus with thickness 10 mm and combination of concave filament density 45% and convex filament density 100%.The dose homogeneity is better achieved for the INTRABEAM system Surface applicator at overlapping and non-overlapping region by using homemade bolus with appropriate combination (filament density) of concave and convex parts of bolus comparative to the other methods. The aim of the research is to provide a better method for the treatment of the localized skin cancer of the size >4 cm.

Here is the link to view complete article: https://medicalphysics.imedpub.com/dose-homogeneity-in-surface-applicator-overlapping-and-nonoverlapping-region-using-homemade-bolus-with-3d-printer-in-intrabeam-sys.php?aid=26223

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Journal of Medical Physics and Applied Sciences