A5059624149- Radiation Dose and Imaging
- Advanced Radiotherapy Techniques
- Advanced X-ray and CT Imaging
- Digital Radiography and Breast Imaging
- Radiation Therapy and Dosimetry
- Radiology practices and education
- Radioactivity and Radon Measurements
- Effects of Radiation Exposure
- Prostate Cancer Diagnosis and Treatment
- Pelvic and Acetabular Injuries
- Graphite, nuclear technology, radiation studies
- Biodiesel Production and Applications
- Urological Disorders and Treatments
- Radioactive contamination and transfer
- Nuclear materials and radiation effects
- Nuclear Physics and Applications
- Airway Management and Intubation Techniques
- Neonatal Respiratory Health Research
- Child and Adolescent Health
- Crystal Structures and Properties
- Medical Imaging Techniques and Applications
- Radiation Shielding Materials Analysis
- Luminescence Properties of Advanced Materials
- Multiple and Secondary Primary Cancers
Pedagogical and Technological University of Colombia
2018-2023
Universidade Federal de Pernambuco
2015-2017
Universidad Nacional de Colombia
1992-2015
The aim of this study was to evaluate the radiation doses patients and staff received from first cases prostatic artery embolization (PAE) conducted in a public hospital Recife, Brazil. Five PAE procedures for 5 men diagnosed with benign hyperplasia were investigated. In order characterize patient exposure, dosimetric quantities, such as air kerma-area product (P KA), cumulative kerma at interventional reference point (Ka,r), number images, etc, registered. To possibility deterministic...
Journal Article Evaluation of staff, patient and foetal radiation doses due to endoscopic retrograde cholangiopancreatography (ERCP) procedures in a pregnant Get access A. Huda, Huda 1Department Nuclear Energy, Federal University Pernambuco, Recife, Brazil2Department Physics, California State University, Fresno, CA, USA Search for other works by this author on: Oxford Academic PubMed Google Scholar W. J. Garzón, Garzón Brazil G. C. L. Filho, Filho 3The Professor Fernando Figueira Integral...
The purpose of this study was to evaluate patient and medical staff absorbed doses received from transarterial chemoembolisation hepatocellular carcinoma, which is the most common primary liver tumour worldwide. performed in three hospitals Recife, capital state Pernambuco, located Brazilian Northeastern region. Two are public (A B), one private (C). For each procedure, number images, irradiation parameters (kV, mA fluoroscopy time), air kerma-area product (PKA) cumulative kerma (Ka,r) at...
Abstract This investigation is aimed to study the feasibility of size-specific dose estimate (SSDE) patient dosimetry in pediatric head CT scans and establish typical values a hospital Tunja, Colombia. The volumetric computed tomography index (CTDIvol) dose-length product 468 patients from newborn 15-year-olds, who underwent non-contrast scans, were collected retrospectively. For 186 cases only, SSDE was estimated using attenuated-based size metrics CTDIvol,16-to-SSDE conversion factors...
The aim of this study is to evaluate organ and tissue absorbed doses patients undergoing hepatic chemoembolization procedures performed in two hospitals the city Recife, Brazil. Forty eight fifty were investigated. For 20 cases with PA projection only, organs tissues dose KAP conversion coefficients calculated using mesh-based anthropometric phantom series FASH MASH coupled EGSnrc Monte Carlo code. Clinical, dosimetric irradiations parameters registered for all patients. maximum found 2.4...
Abstract Prostatic artery embolisation (PAE) is used to treat patients with benign prostatic hyperplasia and lower urinary obstructive tract symptoms. It an interventional procedure which uses fluoroscopy equipment can result in exposure high doses of radiation staff. We aimed demonstrate the reduction received by staff during PAE implementing optimised protocol called Radiation Exposure Curtailment for Embolisation (RECiFE). This was implemented cooperation medical team technical using...
The aim of this article was to verify the performance Mirion InstadoseTM dosemeter under clinical conditions and compare its response in typical X-ray fields used during interventional cardiology procedures with TLD-100, usually for radiation dosimetry. It also objective study feasibility using at chest level estimation occupational eye lens dose radiology. Initially tested continuous beams results showed that Instadose present a satisfactory behavior most important dosimetric properties...
The aim of this study was to estimate brain radiation dose the main operator during interventional radiology procedures. Occupational doses from 19 procedures were measured using thermoluminiscent dosimeters and an anthropomorphic RANDO woman phantom simulating a operator. Results show that, radiologists may receive minimum maximum per procedure 0.01 mGy (left temporal cortex) 0.08 (temporal lobe cortex), respectively. A radiologist who works without movable shielding devices has typical...
Abstract The aim of this work was to estimate patient’s organ absorbed doses from pediatric helical head computed tomography (CT) examinations using the Size-Specific Dose Estimate (SSDE) methodology and determine dose SSDE conversion coefficients for clinical routine. Patient-specific tissue 139 Head CT scans performed in patients 0 15 years old a Public Hospital Tunja, Colombia were estimated. calculations made through Monte Carlo simulations, based on patient-specific information,...
Introduction: Anesthetists play an important role during interventional radiology procedures. Like the main operator, anesthetists may also be subject to significant radiation levels in fluoroscopy suite. Due its complexity, hepatic chemoembolization procedures demand high fluoroscopic times and digital subtraction angiography images, exposing patients medical staff doses.
 Objetive: To assess quantify which one anesthetist was exposed over course of seven consecutive procedures,...
The objective of this study was to assess the radiation doses received by anaesthetists from prostatic artery embolization (PAE) procedures. Ten PAE procedures conducted in a reference hospital city Recife, Brazil were investigated. Occupational dosimetry performed using thermoluminescent dosemeters which located next eyes, close thyroid (over shielding), on thorax (under apron), wrist and feet physician's body. results showed that anaesthetist's highest followed eyes hands. In some complex...
La Comisión Internacional de Protección Radiológica (ICRP) afirmó que actualmente el uso la dosis efectiva no es recomendado para evaluar riesgo efectos estocásticos en situaciones retrospectivas exposiciones pacientes, sin embargo esta cantidad puede ser valor comparar tecnologías similares y procedimientos diferentes hospitales países, así como un mismo tipo examen.El objetivo este estudio fue estimar pacientes pediátricos sometidos a exámenes rayos X tórax hospital pediátrico más grande...
a disminuir el riesgo radiológico en este tipo de procedimientos.
Angiography equipment is one of the most used in interventionist medical techniques.However, image formation process, this uses X-rays, which are dangerous since these cause harmful effects to individuals involved.For reason, and according pillars radiation protection, ''as low as reasonably possible'', known optimisation that quality control essential reduce dose, at same time obtaining a good image.A description presented article relevant tests for fluoroscope equipment, well demonstrating role