A5029894393- Radiation Dose and Imaging
- Radiology practices and education
- Ultrasound in Clinical Applications
- Pneumocystis jirovecii pneumonia detection and treatment
- Trauma and Emergency Care Studies
- Global Health and Surgery
- Tuberculosis Research and Epidemiology
- Advanced X-ray and CT Imaging
- HIV-related health complications and treatments
- Pneumonia and Respiratory Infections
- Pelvic and Acetabular Injuries
- Healthcare cost, quality, practices
- Global Cancer Incidence and Screening
- Congenital Anomalies and Fetal Surgery
- Emergency and Acute Care Studies
- Esophageal and GI Pathology
- Congenital Diaphragmatic Hernia Studies
- COVID-19 diagnosis using AI
- Lung Cancer Diagnosis and Treatment
- Abdominal Trauma and Injuries
- Trauma Management and Diagnosis
- Congenital gastrointestinal and neural anomalies
- Medical Imaging and Analysis
- Infectious Diseases and Tuberculosis
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
Stellenbosch University
2016-2025
Western Cape Department of Health
2022-2023
Tygerberg Hospital
2012-2022
University of California, San Francisco
2022
University of Cape Town
2004-2015
Red Cross War Memorial Children's Hospital
2004-2009
Somerset Hospital
2003
Diagnostic radiology is recognised as a key component of modern healthcare. However there marked inequality in global access to imaging. Rural populations low- and middle-income countries (LMICs) have the greatest need. Carefully coordinated healthcare planning required meet ever increasing demand for imaging ensure equitable services. However, meaningful requires robust data. Currently, are no comprehensive published data on radiological equipment resources low-income countries. The aim...
Introduction: to conduct an analysis of all registered South Africa (SA) diagnostic radiology equipment, assess the number equipment units per capita by imaging modality, and compare SA figures with published international data, in preparation for introduction national health insurance (NHI) SA.
Introduction: Tuberculous (TB) meningitis is sometimes difficult to diagnose in young children. The decision start anti-TB treatment of TB usually made on clinical grounds and results special investigations, such as cerebrospinal fluid examination cranial computerized tomography (CT), because bacteriologic yield low the delayed. Aim: To determine whether clinical, laboratory, radiologic criteria used diagnosis human immunodeficiency virus (HIV)-uninfected children apply HIV-infected Methods:...
Approximately two-thirds of the world's population has no access to diagnostic imaging. Basic radiological services should be integral universal health coverage. The World Health Organization postulates that one basic X-ray and ultrasound unit for every 50000 people will meet 90% global imaging needs. However, there are limited country-level data on resources, little appreciation how such reflect equity within a healthcare system. aim this study was detailed analysis licensed Zimbabwean...
To investigate the effect of closed-system vs. open endotracheal suctioning on frequency ventilator-associated pneumonia and outcome in a pediatric intensive care unit developing country.Prospective observational nonrandomized controlled clinical study.A 20-bed tertiary hospital.Infants children mechanically ventilated for >24 hrs.: Pediatric systems were alternated monthly. An 8-month interim analysis was planned with priori efficacy futility study termination boundaries set at p < .006 >...
To describe the clinical presentation and outcomes of hospitalised patients infected with human metapneumovirus (hMPV) respiratory syncytial virus (hRSV) in a tertiary hospital Cape Town, South Africa.hMPV was identified 17 specimens submitted for viral studies during period 2001-2003. These patients' medical folders were retrospectively reviewed clinical, radiological laboratory data, together convenience sample 20 hRSV-infected patients.hMPV-infected older than those hRSV (P = 0.04)...
Introduction: due to the universal shortage of radiologists, medical officers are largely responsible for acute trauma radiograph reporting in public sector healthcare facilities well-resourced countries. In poorly-resourced countries, a results most radiographs being unreported. European Union (EU), experienced radiographers with no specific training have been shown be more accurate than reporting, while EU who receive additional can reach accuracies comparable radiologists. some role...
Introduction: estimates indicate that two-thirds of the world's population lack adequate access to basic medical imaging services integral universal health coverage (UHC). Furthermore, sparse country-level radiological resource statistics exist and there is scant appreciation how such data reflect healthcare access. The World Health Organisation posits one X-ray ultrasound unit for every 50,000 people will meet 90% global demands. This study aimed conduct a comprehensive review licensed...
Objectives: To establish local diagnostic reference levels (LDRLs) for emergency paediatric head computed tomography (CT) scans performed at a South African (SA) tertiary-level hospital and to compare these with published data.Materials methods: A retrospective analysis was conducted of volume-based CT dose index (CTDIvol) length product (DLP) data from uncontrasted in the Trauma Emergency Unit SA January June 2013. random sample 30 patients each 3 age groups (0–2, >2–5 >5–10 years)...
The global demand for diagnostic imaging exceeds the supply of radiologists and is particular significance in poorly resourced healthcare environments where many radiographs are unreported. Delayed or absent reporting may negatively impact patient management. In well-resourced countries there recognition that extending role radiographers to radiological tasks helps meet service demands. Aim. To determine accuracy acute fracture detection by South African working an after-hour setting.We...
Background In 1996 the International Commission on Radiological Protection (ICRP) introduced diagnostic reference levels (DRLs) as a quality assurance tool for radiation dose optimization. While many countries have published DRLs, available data are largely from high-income countries. There is arguably greater need DRLs in low- and middle-income-countries (LMICs), where imaging equipment may be older trained technicians scarce. To date, there has been no critical analysis of work LMICs. Such...
Introduction: the third Sustainable Development Goal (SDG) relates to Universal Health Coverage (UHC) and provision of quality essential health services. The Government Uganda has operationalized this through National Policy which stresses importance availability functioning medical equipment in facilities. There have been efforts by Ministry Atomic Energy Council compile an inventory imaging country, however, information not widely published. purpose study was conduct audit registered...
Background Tuberculosis (TB) remains a significant global health challenge, particularly in children, where diagnosis is challenging. Radiological resources such as chest X-rays and CT scans play crucial role early screening diagnosis, especially the absence of microbiological confirmation disease. However, radiological capacity access vary widely across regions countries. Methods This study retrospectively audited licensed X-ray units Mozambique, South Africa Spain 2022. Population data...
Douglas, Tania S. PhD; Sanders, Virginia MSc; Pitcher, Richard FCR; van As, Arjan B. PhD Author Information
Summary Background The chest X‐ray (CXR) abnormalities of human immunodeficiency virus (HIV)‐infected children in low/middle income countries (LMIC's) have not been well studied. Objective To describe the CXR and associated clinical/immunological features HIV‐infected South African children. Materials Methods A prospective study who underwent baseline radiography clinical immunological HIV‐staging. were stratified as grade 1 (mild) or 2 (moderate/severe). Univariate multiple logistic...
Objectives We evaluated the prevalence and risk factors for hepatic steatosis in South African children with perinatally acquired HIV (PHIV) who started treatment early remain on long-term antiretroviral therapy (ART) compared to HIV-uninfected children. Design A cross-sectional study from April 2019 October 2021. PHIV, HIV-exposed uninfected (HEU) HIV-unexposed (HU) were enrolled an ongoing cohort study. Methods All had transient elastography (TE) controlled attenuation parameter (CAP)....