Publications by authors named "A I McGhie"
Objectives: To examine (1) the knowledge of dementia among Aboriginal and Torres Strait Islander community members and health-care workers providing care to Aboriginal and Torres Strait Islander people; (2) the factors associated with higher levels of knowledge about dementia.
Methods: An online cross-sectional survey was conducted. Aboriginal and Torres Strait Islander community members were recruited through social media advertisements and an online market research platform.
Background: Transient ischemic dilation (TID) of the left ventricular (LV) cavity is considered a high-risk marker in patients with abnormal single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). Stress image acquisition with rubidium-82 (Rb) PET occurs at peak stress compared to 30-60 minutes post-stress with SPECT. We aimed to evaluate the prognostic value of TID in patients undergoing Rb PET MPI.
View Article and Find Full Text PDFBackground: Quantitative myocardial blood flow (MBF) on positron-emission tomography myocardial perfusion imaging is a measure of the overall health of the coronary circulation. The ability to adequately augment blood flow, measured by myocardial blood flow reserve (MBFR), is associated with lower major adverse cardiovascular events and all-cause mortality. The age-specific ranges of MBFR in patients without demonstrable coronary artery disease have not been well established.
View Article and Find Full Text PDFArticle Synopsis
- This study focused on how Body Mass Index (BMI) influences radiation exposure in patients with chest pain undergoing different imaging techniques, highlighting the importance of optimizing doses for patient safety.
- A total of 9,046 patients were analyzed, and results showed PET/CT had the lowest radiation exposure, particularly for patients with higher BMI, while CCTA had significantly higher doses in heavier patients.
- The findings emphasize that while radiation doses for these imaging methods are generally modest, understanding BMI's impact is crucial for improving imaging practices and reducing unnecessary radiation exposure.