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3 years ago
Ultrasound contrast agents capable of transpulmonary passage following intravenous injection have been commercially available since the 1990s. These agents are microbubbles, which are smaller than red blood cells and persist long enough (due to reduced rate of gas diffusion) to reach the left ventricle (LV).1–3 Ultrasound contrast agent applications included LV cavity opacification, enhancement…
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3 years ago
DEFINITY® (Perflutren Lipid Microsphere Injectable Suspension, Lantheus Medical Imaging, North Billerica, MA) received approval for clinical use by the US Food and Drug Administration (FDA) in 2001 for “opacification of the left ventricular cavity and enhancement of left ventricular border delineation in patients with technically difficult echocardiograms.”1 By 2007, it was estimated that two…
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3 years ago
In this era of cost control and limited resources available to meet the growing demand for cardiovascular imaging testing, quality control initiatives that reduce the need for alternative testing are highly relevant. The implementation of continuous quality improvement (CQI) through the analysis of variations in clinical or test performance at an organizational or individual level is termed …
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3 years ago
Coronary artery disease (CAD) represents a tremendous financial and health burden as the leading cause of death in the US.1 Acute coronary syndrome and its subsequent manifestations, including heart failure and need for cardiac transplantation, are associated with significant morbidity and mortality. Hypertension, dyslipidemia, tobacco abuse, diabetes, chronic kidney disease, and family history…
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3 years ago
Diabetes mellitus is one of the most common chronic diseases, affecting >30 million people in the US and 422 million worldwide.1,2 Alarmingly, both the incidence and prevalence of type 2 diabetes have doubled in the US since 1990.3 This is driven by an aging population, obesity, physical inactivity, and prolonged survival in those with diabetes, among other factors. It is estimated that…
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3 years ago
Acute coronary syndrome (ACS) occurs most often when a vulnerable intracoronary plaque ruptures or erodes to expose a prothrombotic core, precipitating thrombus formation by way of platelet activation,1–3 The spectrum of ACS includes non-ST segment-elevation (NSTE) ACS, where a vulnerable plaque threatens downstream coronary perfusion manifest as an increase in symptom frequency and/or duration …
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3 years ago
The term 'artificial intelligenceÔÇÖ (AI) was coined in 1956 by Professor John McCarthy at the Massachussetts Institute of Technology (MIT).While the ambitious goal of 'making computers think and behave like humansÔÇÖ is still largely unrealized (to date no computer has ever passed the Turing testÔÇödefined as the capability to engage undetected in a natural language conversation with a human…
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Stephen Black
Job title: University of Witwatersrand Johannesburg, South Africa, Consultant Vascular Surgeon Professor of Venous Surgery
Author
Added:
1 year ago
AHA 22 - Dr Subodh Verma (St. Michael's Hospital, Toronto, CA) presents the findings of an ethnicity-focussed analysis of the EMPEROR-POOLED study, originally revealed at AHA 2022.
EMPEROR-POOLED was a pooled analysis from the EMPEROR-Preserved and EMPEROR-Reduced studies, which studied the effects of empagliflozin on patients with heart failure. This sub-analysis aims to evaluate the clinical…
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Added:
3 years ago
Contrast-enhanced ultrasound imaging (CEUS) is a non-invasive imaging modality that utilizes air-filled microspheres as blood pool agents, which act as intravascular indicators, resulting in improved accuracy and reliability in performing ultrasound images of the heart. CEUS is increasingly used throughout the US, South America, Australia, the Middle East, Europe, Japan, Canada, and Asia as a…
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