Publications by authors named "Abdulaziz AlShabibi"
Background: Bone scans using technetium-99m methylene diphosphonate (99mTc-MDP) are widely used in nuclear medicine for diagnosing various bone disorders. However, the radiation exposure associated with these procedures necessitates careful consideration and optimization.
Aim: This study aimed to evaluate radiation doses in terms of Effective Dose (ED) and establish Diagnostic Reference Levels (DRLs) for 99mTc-MDP bone scans in Saudi Arabia.
: Computed Tomography (CT) is crucial in medical diagnosis, particularly for head examinations. Diagnostic Reference Levels (DRLs) are pivotal in balancing diagnostic efficacy with radiation safety. International organizations such as the International Atomic Energy Agency (IAEA) and the International Commission on Radiological Protection (ICRP) provide guidelines for establishing DRLs, emphasizing their importance in optimizing radiation doses.
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- End-stage kidney disease (ESKD) affects millions, with anxiety and depression being prevalent mental health issues among dialysis patients, impacting their mortality and quality of life.
- A study conducted in Riyadh, Saudi Arabia, involving 158 dialysis patients, assessed the prevalence of anxiety and depression using the Hospital Anxiety and Depression Scale (HADS).
- Results showed that female patients had a higher likelihood of anxiety, while unemployment and male gender were linked to higher depression rates, highlighting the need for further research in this area.
Article Synopsis
- This study investigates how standardized test-set results can help identify breast-screening readers who improve cancer detection after training.
- The research analyzes the test-set results of 41 participants alongside their annual cancer detection rates, using correlation tests and regression models to assess relationships between these metrics.
- Findings show significant correlations, revealing that higher sensitivity leads to better detection rates, while increased specificity may not be as beneficial in improving performance.
Objectives: To examine whether radiologists' performances are consistent throughout a reading session and whether any changes in performance over the reading task differ depending on experience of the reader.
Methods: The performance of ten radiologists reading a test set of 60 mammographic cases without breaks was assessed using an ANOVA, 2 × 3 factorial design. Participants were categorized as more (≥2,000 mammogram readings per year) or less (<2,000 readings per year) experienced.
Objectives: To examine whether radiologists' mammogram reading performance varies according to how long they have been awake ("hours awake") and the number of hours they slept ("hours slept") the night before a reading session.
Methods: Retrospective data were retrieved from the BreastScreen Reader Assessment Strategy database. Malignancy-enriched mammographic readings were performed by 133 radiologists.
Context: urethral strictures commonly occur and considered difficult to manage due to high recurrence rate and wide variety of management approach.
Aims: This study aims to identify how urologists in Saudi Arabia manage new and recurrent urethral stricture cases and to investigate their opinions regarding urethroplasty.
Settings And Design: A cross-sectional study (Online Survey) among urologists.