A5065232360- Radiation Dose and Imaging
- Advanced Radiotherapy Techniques
- Effects of Radiation Exposure
- Radiation Therapy and Dosimetry
- Advanced X-ray and CT Imaging
- Radioactivity and Radon Measurements
- Radiomics and Machine Learning in Medical Imaging
- Digital Radiography and Breast Imaging
- Coenzyme Q10 studies and effects
- Carcinogens and Genotoxicity Assessment
- COVID-19 diagnosis using AI
- Nanoparticle-Based Drug Delivery
- Biochemical Acid Research Studies
- Medical Imaging Techniques and Applications
- Characterization and Applications of Magnetic Nanoparticles
- Free Radicals and Antioxidants
- Nuclear Physics and Applications
- Tea Polyphenols and Effects
- Radiology practices and education
- Radiation Effects and Dosimetry
- Tendon Structure and Treatment
- Machine Learning in Healthcare
- Neuroscience and Neuropharmacology Research
- Magnetic Properties and Synthesis of Ferrites
- Hydrogen's biological and therapeutic effects
Babol University of Medical Sciences
2019-2024
Yasuj University of Medical Sciences
2019-2023
Shahid Sadoughi University of Medical Sciences and Health Services
2021
Tarbiat Modares University
2019
BACKGROUND AND OBJECTIVE: Radiomics has been widely used in quantitative analysis of medical images for disease diagnosis and prognosis assessment. The objective this study is to test a machine-learning (ML) method based on radiomics features extracted from chest CT screening COVID-19 cases. METHODS: carried out two groups patients, including 138 patients with confirmed 140 suspected COVID-19. We focus distinguishing pneumonia caused by the cases segmentation whole lung volume extraction 86...
Abstract Background This study aimed to propose an automatic prediction of COVID-19 disease using chest CT images based on deep transfer learning models and machine (ML) algorithms. Results The dataset consisted 5480 samples in two classes, including 2740 patients with confirmed suspected cases was assessed. DenseNet201 model has obtained the highest training accuracy 100%. In combining pre-trained ML algorithms, KNN algorithm have received best performance Created map by t-SNE showed not...
Objectives: Our study aimed to apply the apparent diffusion coefficient (ADC) values quantify differences between low- and high-grade glioma tumors. Methods: We conducted a multicenter, retrospective September December 2019. Magnetic resonance imaging (MRI) diffusion-weighted images (DWIs), pathologic findings of 56 patients with tumors (low grade = 28 high 28) were assessed measure ADC in tumor center, edema, boundary area normal tissue, inside healthy hemisphere. These compared two groups,...
AIM: This study assessed the myocardial infarction (MI) using a novel fusion approach (multi-flavored or tensor-based) of multi-parametric cardiac magnetic resonance imaging (CMRI) at four sequences; T1-weighted (T1W) in axial plane, sense-balanced turbo field echo (sBTFE) late gadolinium enhancement heart short axis (LGE-SA) sagittal and four-chamber views LGE (LGE-4CH) plane. METHODS: After considering inclusion exclusion criteria, 115 patients (83 with MI diagnosis 32 as healthy control...
Medical use of ionizing radiation has direct/indirect undesirable effects on normal tissues. In this study, the radioprotective effect arbutin in megavoltage therapeutic x-irradiated mice was investigated using serum alkaline phosphatase (ALP), alanine aminotransferase (ALT), and asparate amniotransferase (AST) activity measurements.In analytical experimental lab sixty (12 identical groups) were irradiated with 6 MV x-ray beam (2 4 Gy one fraction). Arbutin concentrations chosen 50, 100, 200...
With regards to the use of ionisation radiation in computed tomography (CT), optimal parameters should be used reduce risk incidence secondary cancers patients who are constantly exposed X-rays. The aim this study was optimise CT scan cervical vertebrae and neck soft tissue with minimal loss image quality emergency patients.In study, were divided into two groups. first group consisted scanned default second optimised parameters. All has been implemented settings. cases included protocols....
This study was aimed at determining the effects of alpha-lipoic acid on ionizing irradiation-induced oxidative damage and apoptosis in brain rats.The animals were exposed to whole-brain X-radiation with a 15 Gy single dose absence or presence (200 mg/kg body weight) pretreatment for one week. The rats divided into four groups (5 each group): vehicle control, alone (ALA), radiation (RAD), plus (RAD+ALA). In next stage, malondialdehyde (MDA), nitric oxide, catalase (CAT), superoxide dismutase...
Abstract This study was conducted to determine first local diagnostic reference levels (DRLs) and achievable doses (ADs) for pediatric patients during the most common computed tomography (CT) procedures in Yazd province. The DRL obtained based on volume CT dose index (CTDIvol) length product (DLP) four various age groups of children. Data were collected from commonly performed scans, including abdomen–pelvis, chest, brain sinus examinations, at six high-loaded institutes. patients’ data (766...
Abstract Introduction The main purpose of this study was to determine the diagnostic reference level (DRL) for routine digital radiography examinations in Mazandaran province. Materials and methods Thirteen radiographic at 18 high-patient-load centres were investigated. indirect dosimetry method performed based on IAEA report. Average entrance skin dose (ESD) third quartile ESD as DRL evaluated from measurement made by a semiconductor dosemeter. Results obtained as: Skull (postero-anterior...
Idiopathic generalised epilepsy (IGE) refers to a group of epilepsies resulting from the activation neurons in whole brain. This study aimed evaluate metabolite changes thalamus as diagnostic biomarkers IGE patients compared healthy individuals using magnetic resonance spectroscopy (MRS) technique.The MRS was performed on 35 (26 women and 11 men) with average age 32 (ranged 18 43) (13 22 31 21 50) control group. The levels N-acetylaspartate (NAA), creatine (Cr) choline (Cho) were measured...
This study purposed to evaluate the modulator and protective role of Urtica dioica (UD) extract against deleterious effects retinoic acid (RA) high doses on histological parameters fertilization rats.For in-vivo phase, 60 female Wistar rats were divided into 6 identical groups as 1) control, 2) 25 mg/kg RA, 3) UD extract, 4) 50 5) (25 mg/kg) + RA mg/kg), 6) (50 mg/kg). Biochemical parameters, including luteinizing hormone (LH), folliclestimulating (FSH), malondialdehyde (MDA) levels,...
Abstract Aim: To evaluate the dosimetric parameters of level II lymph nodes in chest wall three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated (IMRT) mastectomy patients using dual-isocentric (DIT) mono-isocentric techniques (MIT). Materials methods: Computed tomography (CT) images 20 undergoing external were used as input data for abovementioned techniques. Selected calculated axillary I–III nodes, wall, heart lung. Paired t -test statistical analysis was comparing...
Estimating the cancer risk and mortalities induced by routine digital radiography examinations on patient of different ages in Mazandaran province
Rectum and bladder are hallow structures considered as critical organs in prostate cancer intensity modulated radiotherapy (IMRT). Therefore, dose received by these organ walls must be for prediction of radiobiological effects. Contouring the real is quite difficult time consuming CT/MRI images, so easy contouring artificial with uniform thickness could appropriated alternatives.