A5028314353- Ultrasound and Hyperthermia Applications
- Advanced Radiotherapy Techniques
- Radiation Dose and Imaging
- Wireless Body Area Networks
- Radioactivity and Radon Measurements
- Microwave Imaging and Scattering Analysis
- Radiation Therapy and Dosimetry
- Graphite, nuclear technology, radiation studies
- Nuclear and radioactivity studies
- Radiation Detection and Scintillator Technologies
- Electromagnetic Fields and Biological Effects
- HIV, Drug Use, Sexual Risk
- Infrared Thermography in Medicine
- HIV/AIDS Research and Interventions
- Laser Applications in Dentistry and Medicine
- COVID-19 Clinical Research Studies
- Radioactive contamination and transfer
- Hepatocellular Carcinoma Treatment and Prognosis
- Radiology practices and education
- Molecular Communication and Nanonetworks
- Nuclear Physics and Applications
- Ultrasound Imaging and Elastography
- Microbial Inactivation Methods
- Photoacoustic and Ultrasonic Imaging
- Sex work and related issues
University of Lagos
2012-2023
UK Health Security Agency
2023
Michael Okpara University of Agriculture
2023
Lagos University Teaching Hospital
2013-2022
Public Health England
2021
The objective of this study is to analyze the efficiency different antennas proposed for microwave ablation therapy using numerical simulation and experimental approach. was done with COMSOL MULTIPHYSICS® software design antenna prototypes evaluate its reflection coefficient, power dissipation distribution, density, specific absorption rate temperature distribution in tissue. Antennas were fabricated from a 50 Ω RG405/U semi-rigid coaxial cable match geometric generated during simulation. Ex...
To study the efficiency of a dual slot antenna with floating metallic sleeve on ablation different ex vivo bovine tissues.COMSOL Multiphysics® version 4.4 (Stockholm, Sweden), which is based finite element methods (FEM), was used to design and simulate monopole antennas. Power, specific absorption rate (SAR), temperature necrosis distributions in selected tissues were determined using these Monopole antennas designed, simulated, constructed applied this semi-rigid coaxial cable. Ex...
Uptake of natural radionuclides by vegetables cultivated on contaminated soil may contribute significantly to the radiation exposure a population. This study evaluated activity concentrations 226Ra, 232Th, and 40K in 27 irrigation water samples from different farms Lagos using Hyper Pure Germanium (HPGe) detector. Activity were used estimate some radiological hazard indices. The mean values for 2.29 ± 0.28, 0.38 0.03, 2.17 0.51 Bq/l, respectively. 232Th 226Ra 62% lower 129% higher than their...
This study assessed the potential radiological risks associated with activities on Olusosun dump site workers and dwellers of community. The activity concentrations 238U, 232Th 40K from soil water samples were determined using High-Purity Germanium (HPGe) detector. background radiation level was measured a portable Geiger-Müller counter-Radeye B20 survey meter. mean value 1.46 mSv/yr. is about 46% higher than recommended reference 1.0 mSv/yr for public. in 19.1 ± 3.2, 29.1 4.4 171.5 6.1...
This study explores trends in sex work among people who inject drugs (PWID) by gender and the relationship between adverse health outcomes including overdose, injection-site, blood-borne virus (BBV) infections.The Unlinked Anonymous Monitoring Survey of PWID is an annual cross-sectional survey that monitors BBV prevalence behaviours, transactional sex, recruited through specialist services England, Wales, Northern Ireland.Trends (2011-2021) were described. Data analysed to assess differences...
The use of in vivo dosimetry with thermolumiscent dosimeters (TLDs) as a veritable means quality control conventional radiotherapy procedures was determined this work.The objective study to determine the role thermoluminescent part and audit delivered Co-60 teletherapy machine.Fifty-seven patients cancers breast, pelvis, head neck were admitted for study. TLD system at Radiation Monitoring Protection Centre, Lagos State University, Ojo, Lagos-Nigeria used entrance dose readings. All treated...
The global system mobile telecommunications (GSM) which was recently introduced in Nigeria is now being used by over 40 million people Nigeria. use of GSM accompanied with exposure the users to radiofrequency radiation (RFR), if significant, may produce health hazards. This reason why many relevant national and international organizations recommended limits RFR it made compulsory for handsets indicate maximum power output as a guide potential consumers.This study conducted measure densities...
Abstract Magnetic Resonance Imaging (MRI) employs the use of magnetic field and radio waves to produce images body. Quality Control (QC) is essential for ensuring optimal performance MRI systems, as recommended by American College Radiology (ACR), Association Physicists in Medicine (AAPM), International Society (ISMRM). This survey examines status systems QC Nigeria. Questionnaires were administered through google form Radiologists, Radiographers, Medical Physicists, biomedical engineers...
This study aims at evaluating the radiological impact of industrial activities on untreated surface and well water used for irrigation different farms in Lagos, Nigeria. The concentrations naturally occurring radioactive materials (NORM) have been determined using Sodium Iodide activated with Thallium NaI (Tl) detector. 226Ra, 232Th 40K ranged from below detectable limit (BDL) to 5.71±0.41, BDL 6.76±0.28 Bq/l 14.93±1.06 respectively. mean overall activity are 4.14± 0.16 Bq/l, 2.68 ±0.05...
Background: Previous reports showed that infrared radiation (IR) involved in photoaging, photocarcinogenesis, free radicals' production, and depletion of bone marrow cells. Beneficial effects moderate exposure to lamp have been itemized include enhancement blood circulation, relief from muscular pain, wound healing acceleration with scarce information on biological when it is overexposed. Therefore, there a need investigate the possibility its overexposure system, especially parameters. Aim:...
Abstract Introduction: Antenna geometries and tissue properties affect microwave energy distributions during ablation procedures. There is paucity information on the potential of antenna fabricated from a thick semi-rigid coaxial cable in field thermal therapy. This study aimed at comparing performance two dual-slot antennas designed different cables for liver tumour using numerical simulation experimental validation methods. Materials Methods: COMSOL Multiphysics software was used designing...
The hazard of exposure to ionizing radiation at low doses has been scientifically proven be possible for cancer and non-cancer diseases. International national regulatory bodies have recommended dose limits occupationally exposed workers the general public. objective this study was assess safety levels in monitor rooms x-ray diagnostic radiology facilities. Sixty monitored twenty radio centers were visited. Three tissue-equivalent thermoluminescent dosemeters (TLD-100 (LiF: Mg. Ti)) chips...
Abstract Background: Ultrasound has played a vital role in the medical imaging system for real-time examination. It is considered safe and economical compared to other modalities. Absorption of ultrasound energy by biological tissues can result heating, especially if high intensity used long duration. Aim: This study aims evaluate temperature changes diagnostic scanning patients undergoing different examinations. Materials Methods: An infrared thermometer was measure subjects’ regions...