Objectives: The purpose of this study was to determine whether intravenous sonicated dextrose albumin could improve endocardial border resolution during dobutamine stress echocardiography.
Background: Sonicated albumin improves endocardial border resolution in patients undergoing exercise stress echocardiography. Because a sonicated mixture of albumin with dextrose results in better transpulmonary passage than sonicated albumin alone, this agent could be utilized to further improve endocardial border resolution during dobutamine stress echocardiography.
Methods: We gave intravenous injections of sonicated dextrose and albumin to 50 patients undergoing dobutamine stress echocardiography. Left ventricular video intensity, contrast agent persistence (in seconds), number of contrast agent-enhanced cardiac cycles and improvement in endocardial border resolution were assessed from the apical four-chamber view at baseline, low dose (10 micrograms/kg body weight per min) and peak dobutamine infusion.
Results: There was significantly better left ventricular peak video intensity at peak dobutamine infusion than after the same injection at baseline (p < 0.005, analysis of variance). The number of contrast agent-enhanced cardiac cycles in the left ventricular cavity was also significantly longer at peak infusion. Endocardial border resolution was improved (mainly in lateral segments) in 93% of patients at low dose and 95% of patients at peak infusion.
Conclusions: Intravenous sonicated dextrose albumin improves endocardial border resolution during dobutamine stress echocardiography.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0735-1097(94)90389-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Artificial intelligence-assisted echocardiographic monitoring in pediatric patients on extracorporeal membrane oxygenation.
Front Cardiovasc Med
December 2024
Department of Ultrasonography, Shenzhen Children's Hospital, Shenzhen, China.
Background: Percutaneous extracorporeal membrane oxygenation (ECMO) is administered to pediatric patients with cardiogenic shock or cardiac arrest. The traditional method uses focal echocardiography to complete the left ventricular measurement. However, echocardiographic determination of the ejection fraction (EF) by manual tracing of the endocardial borders is time consuming and operator dependent.
View Article and Find Full Text PDFThe role of artificial intelligence in standardizing global longitudinal strain measurements in echocardiography.
Eur Heart J Imaging Methods Pract
October 2024
Department for Internal Medicine and Cardiology, Herzzentrum Dresden, Faculty of Medicine and University Hospital Carl Gustav Carus, TUD Dresden University of Technology, Fetscherstr. 76, 01307 Dresden, Germany.
Aims: To evaluate the accuracy and feasibility of artificial intelligence (AI) in left ventricular global longitudinal strain (GLS) analysis as compared to conventional (Manual) and semi-automated (SemiAuto) method in echocardiography (Echo).
Methods And Results: GLS validation was performed on 550 standard Echo exams by expert cardiologists. The performance of a beginner cardiologist without experience of GLS analysis was assessed on a subset of 90 exams.
Non-invasive pressure-volume loops show high arterial elastance in children with repaired tetralogy of Fallot.
Scand Cardiovasc J
December 2024
Clinical Physiology, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, Lund, Sweden.
Article Synopsis
- Children with repaired tetralogy of Fallot (rToF) exhibit distinct changes in left ventricular (LV) function and right ventricular (RV) size compared to healthy peers, including larger RV volumes and smaller LV volumes.
- The study measured haemodynamic variables using non-invasive techniques, revealing higher arterial elastance and heart rates in children with rToF, suggesting a compensatory response to impaired LV filling.
- Further research is needed to understand the implications for cardiovascular health and the potential increased risk for adverse events in these patients.
Echocardiographic image quality deteriorates with the severity of cardiogenic shock.
Egypt Heart J
August 2024
William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, UK.
Background: Transthoracic echocardiography (TTE) is the primary tool for assessing left ventricular (LV) function in cardiogenic shock (CS). However, inadequate image quality often hinders it. In this retrospective study, we investigated factors associated with LV image quality in patients admitted to the intensive care unit (ICU) with ischemic CS.
View Article and Find Full Text PDFReproducibility Analysis of Two Speckle Tracking Software for the Antenatal Semiautomated Assessment of the Fetal Cardiac Function.
Fetal Diagn Ther
August 2024
Department of Medicine and Surgery, Unit of Surgical Sciences, Obstetrics and Gynecology, University of Parma, Parma, Italy.
Introduction: Speckle tracking echocardiography is a non-Doppler modality allowing the semiautomated evaluation of the fetal cardiac function by tracking the speckles of the endocardial borders. Little evidence is available on the evaluation and comparison of different software for the functional assessment of the fetal heart by means of speckle tracking echocardiography. The aim of this study was to evaluate the reproducibility and agreement of two different proprietary speckle tracking software for the prenatal semiautomated assessment of the fetal cardiac function.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!