Feasibility of a Novel Gamma Radiography Mammo System


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 “Feasibility of a Novel Gamma Radiography Mammo System” was well written by Dr. Abdalmajeid M. Alyassin.


This research aims to study gamma radiography feasibility in mammography through simulation. GATE simulation package was used to define the feasibility limits and to test several parameters including energy range, activity, source size and dose. An ACR-like mammography phantom was generated in simulation and the produced images were used for visual and analytical assessments. Some images were processed and enhanced by an application developed using the Visualization Toolkit. A special technique was developed to correct the gamma radiation field inhomogeneity and a morphological operator based technique was used to automatically extract regions of interest from the simulated images to estimate the contrast and signal-to-noise ratio. The results of the analytical and visual assessments demonstrated that gamma radiation of 35 keV energy or less produces acceptable mammography images. Higher energy photons produced mammography images but did not pass the rigorous clinical acceptable tests. The maximum feasible cylindrical source size was found to be 4 mm in diameter and 5 mm in thickness. An Am-241 source showed to produce acceptable mammography images in simulation using energy sensitive detectors with an average glandular dose of 1.2 mGy.

Here is the link to view complete article: https://medicalphysics.imedpub.com/feasibility-of-a-novel-gamma-radiographymammo-system.php?aid=8415

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