Publications by authors named "M E Ravari"
Background: Different dose calculation methods vary in accuracy and speed. While most methods sacrifice precision for efficiency Monte Carlo (MC) simulation offers high accuracy but slower calculation. ISOgray treatment planning system (TPS) uses Clarkson, collapsed cone convolution (CCC), and fast Fourier transform (FFT) algorithms for dose distribution.
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- Scientists are studying a disease called cystic echinococcosis (CE) to understand how it affects humans and why some people get it and others don't.
- They looked at specific genes (HLA class II) in patients to see if there was a connection between these genes and different stages of the disease.
- The study found that a certain gene (HLA-DRB1*03) was less common in sick people than in healthy ones, suggesting it might help protect against CE, but more research is needed to be sure.
Calculation of Organ Dose Distribution (in-field and Out-of-field) in Breast Cancer Radiotherapy on RANDO Phantom Using GEANT4 Application for Tomographic Emission (Gate) Monte Carlo Simulation.
J Med Signals Sens
July 2024
Introduction: Organ dose distribution calculation in radiotherapy and knowledge about its side effects in cancer etiology is the most concern for medical physicists. Calculation of organ dose distribution for breast cancer treatment plans with Monte Carlo (MC) simulation is the main goal of this study.
Materials And Methods: Elekta Precise linear accelerator (LINAC) photon mode was simulated and verified using the GEANT4 application for tomographic emission.
Hypoxia-Inducible Factor-1α (HIF-1α) has presented a new direction for ischemic preconditioning of surgical flaps to promote their survival. In a previous study, we demonstrated the effectiveness of HIF-1a DNA plasmids in this application. In this study, to avoid complications associated with plasmid use, we sought to express HIF-1α through mRNA transfection and determine its biological activity by measuring the upregulation of downstream angiogenic genes.
View Article and Find Full Text PDFBackground: Cystic echinococcosis (CE) or hydatid disease is a global public health concern which imposes considerable economic costs on the communities in endemic regions. CE surveillance data are not adequately reliable. The present study reports the development and outcomes of a CE registry in Iran.
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