A5044997230- Advanced Radiotherapy Techniques
- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Radiation Therapy and Dosimetry
- Prostate Cancer Diagnosis and Treatment
- COVID-19 and healthcare impacts
- Medical Imaging Techniques and Applications
- Nanoparticle-Based Drug Delivery
- Microbial Metabolites in Food Biotechnology
- Carcinogens and Genotoxicity Assessment
- Effects of Radiation Exposure
- Immune cells in cancer
- Lung Cancer Diagnosis and Treatment
- Radioactivity and Radon Measurements
- Personal Information Management and User Behavior
- Click Chemistry and Applications
- Dendrimers and Hyperbranched Polymers
- Nanoplatforms for cancer theranostics
- Nuclear Materials and Properties
- Synthesis and Biological Evaluation
- Immune Cell Function and Interaction
- Cardiac Imaging and Diagnostics
- RNA Interference and Gene Delivery
- Helicobacter pylori-related gastroenterology studies
- Gastrointestinal motility and disorders
Tabriz University of Medical Sciences
2023-2025
Tehran University of Medical Sciences
2015-2021
Ardabil University of Medical Sciences
2021
Urmia University of Medical Sciences
2020
Urmia University
2020
Purpose: This study aimed to evaluate the impact of Contrast-Enhanced Computed Tomography (CECT) on treatment planning for rectal cancer using Helical Tomotherapy (HT). Materials and Methods: A total patients with known tumors were included, both CECT non-CECT images obtained. Patients adhered a low-fat diet received oral intravenous iodine-based contrast agents. Target volumes, including Gross Tumor Volume (GTV), Clinical (CTV), Planning (PTV), delineated by radiation oncologist DICOM...
In radiotherapy, the accuracy of dose calculation systems plays a key role in treatment cancer patients. The current research aimed to evaluate Monaco Treatment Planning System (TPS) estimating Effective Wedge Angle (EWA) using two different mathematical methods: Elekta formula and ICRU-24 formula. this experimental study, EWAs for field sizes (5×5, 10×10, 15×15, 20×20, 25×25, 30×30 cm2) at standard angles (15°, 30°, 45°, 60°) were computed by TPS analytical methods. practical measured...
To evaluate the knowledge of CT technologists and radiographers concerning parameters, in order to keep users be aware all parameters their impact on image quality patient dose while keeping up date. This cross-sectional descriptive-analytic study was conducted Zanjan province, Iran, using a valid reliable online questionnaire with 53 questions distributed 153 radiology personnel. Each included about demographic characteristics including kVp, mAs, noise, slice thickness, pitch automatic tube...
Background: Breast cancer requires evaluating treatment plans using dosimetric and biological parameters. Considering radiation dose distribution tissue response, healthcare professionals can optimize for better outcomes.Objective: This study aimed to evaluate the effects of different Dose Calculation Algorithms (DCAs) Biologically Model-Related Parameters (BMRPs) on prediction cardiopulmonary complications due left breast radiotherapy.Material Methods: In this practical study, 21 female...
The impact of intravenous (IV) contrast media (CM) on radiation dose calculations must be taken into account in treatment planning.The aim this study is to evaluate the effect an three-dimensional conformal therapy (3D-CRT) for lower esophageal and rectal cancers.Seventeen patients with tumors 12 cancers were analyzed. At outset, all planned 3D-CRT based computed tomography (CT) scans IV media. Subsequently, plans copied replaced without CM. doses calculated from two sets CTs compared.The...
As regards, the selection of appropriate energy in radiotherapy tumors that are placed non-homogen areas is important, so aim present study evaluating effect 6 and 15MV photon beam energies on dose distribution 3D-CRT for lower esophageal rectal cancers. 12 patients with cancer respectively, prescription 7000 cGy 5040 were studied. For treatment esophagus three-field technique rectum four-field was used. In thoracic area, spinal cord pelvis, bladder head femurs considered as OARs. comparing...
Abstract This study evaluated the basic dosimetric characteristics of a Dynamic Multi Leaf Collimator (DMLC) using diode detector and film measurements for Intensity Modulated Radiation Therapy Quality Assurance (IMRT QA). The EGSnrc Monte Carlo (MC) simulation system was used determination MLC characteristics. transmission abutting leaf leakage relevant to LinaTech DMLC H were measured an EDGE EBT3 film. In this study, BEAMnrc code modeling. head Siemens PRIMUS linac (6 MV) with external...
Herniarin is a simple coumarin that found naturally in some plant species. In this study, we aimed to evaluate the protective effect of herniarin against ionizing radiation-induced genotoxicity and cytotoxicity human peripheral blood lymphocytes.Herniarin was added lymphocytes before irradiation with dose 2 Gy Xrays. The antagonistic potential radiation measured by MTT [3-(4,5- dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide] assay, micronucleus flow cytometry, reactive oxygen...
Background: Virtual wedge (VW) is used in radiotherapy to compensate for missing tissues and create a uniform dose distribution tissues. According TECDOC-1583 technical reports series no. 430, evaluating the calculation accuracy essential quality assurance of treatment planning systems (TPSs). In this study, collapsed cone superposition (CCS) algorithm postmastectomy chest wall breast cancer was evaluated by comparing calculated measured VW fields. Methods: Two tangential fields with typical...
In this study, the purpose was to investigate Personal Information Management (PIM) activity rate regardingfourPIM aspects o f acquisition, maintenance, organization, and retrieval faculty members in three universities, i.e., Tehran University Medical Science (TUMS), Iran Sciences (lUMS), Shahid Beheshti (SBUMS). The relationship between PIM use workplace, academic rank, gender factors were also studied. A Persian-language questionnaire used measure performance of participants. Data analysed...
Anti-tumor activity of some thioureas derivatives is well documented in literature and received considerable attention. The present study aims to synthesize characterize novel carbonylthioureas as anti-tumor agents for MCF-7 breast cancer cells vitro vivo.
In radiation cancer treatments, the most of side effects could be minimized using a proper dosimeter. Gel dosimeter is only three-dimensional and magnetic resonance imaging (MRI) gold standard method for gel readout. Because hard accessibility high cost sample reading by MRI systems, some other alternative methods were developed. The optical computed tomography (OCT) considered as promising that has been studied widely. current study, scanning prototype scanner validation this was performed....
Abstract This study aimed to estimate the individual patient’s lung and breast dose using SSDE method as well effective in patients who underwent chest CT scans during COVID-19 pandemic. The cancer risk incidence was estimated excess relative (ERR), absolute (EAR), lifetime attributable (LAR) models of biological effects ionizing radiation report VII (BEIR-VII). information about 570 for screening used this study. Using header images a python script, were calculated each patient. obtained by...
Functional dyspepsia (FD) is felt as a discomfort or pain on the center line upper abdomen. In this study, we aimed to compare effects of Govarcin herbal capsule and Metoclopramide for alleviating gastrointestinal symptoms in patients with FD.