A5056125899- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Digital Radiography and Breast Imaging
- Advanced Radiotherapy Techniques
- Radiology practices and education
- Medical Imaging Techniques and Applications
- Radioactivity and Radon Measurements
- Ultrasound in Clinical Applications
- Radiation Therapy and Dosimetry
- Graphite, nuclear technology, radiation studies
- Dental Radiography and Imaging
- Optical Imaging and Spectroscopy Techniques
- Breast Cancer Treatment Studies
- COVID-19 diagnosis using AI
- Dental Research and COVID-19
- Healthcare cost, quality, practices
- Global Cancer Incidence and Screening
- Ocular and Laser Science Research
- AI in cancer detection
- Cardiac tumors and thrombi
- BRCA gene mutations in cancer
- Photoacoustic and Ultrasonic Imaging
- Facial Trauma and Fracture Management
- Ethics and Legal Issues in Pediatric Healthcare
- Male Breast Health Studies
Najran University
2012-2023
National Centre for Research
2021
Thamar University
2016
University of Bremen
2014
International Isotopes (United States)
2009
The Coronavirus disease 2019 (COVID-19) is an infectious spreading rapidly and uncontrollably throughout the world. critical challenge rapid detection of infected people. available techniques being utilized are body-temperature measurement, along with anterior nasal swab analysis. However, taking swabs lab testing complex, intrusive, require many resources. Furthermore, lack test kits to meet exceeding cases also a major limitation. current develop some technology non-intrusively detect...
This study aims to estimate the knowledge and awareness of physicians about hazards radiological examinations on their health patients. 466 questionnaires administered through a Google spreadsheet were answered by from 20 cities Saudi Arabia. The sample included 167 radiologists, 106 neonatologists, 19 oncologists, 45 surgeons 18 orthopaedists, 11 paediatricians 100 different specialities. Only 133 had received radiation protection course in workplace. A total 73% participants revealed many...
This study of doses to patients from emitted photoneutrons in a medical linear accelerator (Varian 2100C) was carried out. Dose calculation performed using Monte Carlo Geant4 code. The model used calculate the neutron fluence, as function energy inside treatment room estimate effective dose patients. ambient equivalent versus field size for is reported this study. 1 x cm(2) size, at isocentre and X-ray modes 20, 18, 15 10 MV, found be 1.85, 1.79, 0.61 0.06 mSv Gy(-1), respectively. mean...
Radiographic Imaging represents the largest source of exposure to ionizing radiation humans from artificial sources. The estimated annual per individual in United States is 6.20 mSv. This study aims evaluate rejection rate at King Khalid Hospital-Al-Kharj retrospectively and identify causes radiographic technique. was carried out Hospital (KKH) Prince Sultan center for health services (PSCHS) Al-Kharj City, Saudi Arabia. radiographs were analyzed seven digital X-ray machines three...
Journal Article Direct air activation measurements at a 15-MV medical linear accelerator Get access M. K. Saeed, Saeed * 1Physics Department, University of Bremen, Bremen 28359, Germany *Corresponding author: mohamedrick@gmail.com Search for other works by this author on: Oxford Academic PubMed Google Scholar B. Poppe, Poppe 2Physics Oldenburg, Oldenburg 26111, H. W. Fischer Radiation Protection Dosimetry, Volume 163, Issue 2, February 2015, Pages 233–237, https://doi.org/10.1093/rpd/ncu149...
The numbers of cases and deaths due to the COVID-19 virus have increased daily all around world. Chest X-ray is considered very useful less time-consuming for monitoring COVID disease. No doubt, as a quick screening method, but variations in features images which are X-rays category with Corona confirmed cases, domain expert needed. To address this issue, we proposed utilize deep learning approaches. In study, dataset COVID-19, lung opacity, viral pneumonia, lastly healthy patients' utilized...
The aim of this study was to evaluate dose area product (DAP) and skin patients undergoing coronary angiography (CA) percutaneous transluminal angioplasty (PTCA) using GafChromic XR film at King Khalid Hospital, Najran, Saudi Arabia. entrance doses (ESDs) were calculated from DAP placed on the back. mean obtained for CA PTCA examinations found be 31.4 74.2 Gy cm2, respectively. ESD 0.264 0.596 examinations,
Aim: To assess the root canal filling quality performed by general dental practitioners in Yemen through radiographic evaluation. Materials and Methods: Four hundred fifty-five digital panoramic radiographs were selected from archive of Dental Health Center Sana'a, Yemen. The final sample consisted 221 patients, 685 teeth, 977 canals. criteria for overall adequacy fillings defined as presence adequate length, density taper, absence iatrogenic errors (ledges, transportations perforations)....
Background: This study aimed at estimating the mean glandular dose (MGD) and cancer risks during mammography examinations. Materials Methods: The patients underwent three projections per breast: using craniocaudal (CC), mediolateral oblique (MLO) (ML) in a calibrated digital unit Najran University Hospital, Najran, Saudi Arabia. A total of 510 mammograms were performed, views breast. MGD values estimated indirectly from entrance surface air Kerma (ESAK) half-value layer (HVL) based on...
Assessment of the occupational dose and radiogenic risk in diagnostic radiology nuclear medicine examinations
Intrauterine devices (IUDs) are a preferred reversible contraceptive choice for about 159 million women worldwide. While generally safe, they pose risks like uterine perforation and device migration, which happen in 1 1000 insertions. Other common issues include insertion failure, pain, infection, menstrual changes. This report details rare case of IUD migration 40-year-old woman, discussing the diagnostic challenges approaches used to manage such complications. bladder is uncommon but can...
The purpose of this study is to look at the variations in chest computed tomography (CT) use, radiation dose and image quality 2019 novel coronavirus (COVID-19) pneumonia patients Saudi Arabia. This a retrospective 402 with COVID-19, who were treated between February October 2021. Radiation was estimated using metrics volume CT index (CTDIvol) size-specific estimate (SSDE). imaging performance scanners evaluated by measuring different parameters, such as resolution number uniformity, an...
Abstract Size-specific dose estimate (SSDE), which can be calculated by measuring the effective diameter (De) or water equivalent (Dw) of patient, is one recent approaches for verifying individual doses during computer tomography (CT) examinations. This work aimed to compare Dw estimated AutoWED tool and IndoseCT software investigate CT axial (ARH) paediatric head (PH) protocols used in southern Saudi Arabia calculate received patients using metrics volume index (CTDIvol) SSDE. The...
Scientific research in the engineering and technology domains plays a centric role realizing sustainable development Africa. In particular, multidisciplinary (and sometimes even cross-disciplinary) approach is required when tackling Africas complex challenges such as poverty, climate change, energy access, water resources management, energy-water-food nexus, urban environment, cybersecurity, others. To advance this research, African researchers should be empowered to conduct high-quality...
The purpose of this study was to determine local diagnostic reference levels (DRLs) for patients undergoing intraoral and panoramic dental examinations at the radiology units public hospitals in Najran, Saudi Arabia. DRLs were determined based on measurements dose area product (DAP) units. This has covered over 47% Najran with intention establish all possible X-ray children adults. For intraoral, values estimated DAP ranged from 6 70 mGy.cm 2 (average: 27.6, 29.8, 39.9 39.6 incisive, both...