In this study, 29 patients underwent myocardial contrast echocardiography after presentation with ST-segment elevation acute myocardial infarction but before coronary angiography using a continuous infusion of microbubbles and real-time imaging with a low mechanical index. Patients with transmural perfusion defects at presentation subsequently had much larger infarctions (as measured by peak creatine phosphokinase-MB fraction) than did those with normal perfusion, indicating that myocardial contrast echocardiography may be a useful means to determine adequacy of reperfusion after thrombolytic therapy and in the selection of patients for adjunctive treatment, such as "rescue angioplasty."
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.amjcard.2004.02.040 | DOI Listing |
Am J Physiol Heart Circ Physiol
January 2025
COR-HELIX, Institute of Sport Science, Leibniz University Hannover, Hannover, Germany.
Although 2D speckle-tracking echocardiography (STE) is important for the clinical quantification of myocardial function it remains unknown whether increased frame rates during exercise STE augment tracking success and absolute deformation values. 19 participants (15 male and 4 female; age 26.7±4.
View Article and Find Full Text PDFBMC Cancer
January 2025
Department of Biomedical Sciences, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, P.O. Box 79, Ethiopia.
Background: Chemotherapy is a well-established therapeutic approach for several malignancies, including breast cancer (BCa). However, the clinical efficacy of this drug is limited by cardiotoxicity. Assessing multiple cardiac biomarkers can help identify patients at risk of adverse outcomes from chemotherapy.
View Article and Find Full Text PDFClin Neuroradiol
January 2025
Department of Neurology, Klinikum rechts der Isar, School of Medicine and Health, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Purpose: Myocardial injury, indicated by an elevation of high-sensitive cardiac Troponin (hs-cTnT), is a frequent stroke-related complication. Most studies investigated patients with ischemic stroke, but only little is known about its occurrence in patients with intracerebral hemorrhage (ICH). This study aimed to assess the frequency, predictors, and implications of myocardial injury in ICH patients.
View Article and Find Full Text PDFInt J Cardiovasc Imaging
January 2025
Cardiovascular MR R&D, Siemens Medical Solutions USA, Inc., Chicago, IL, USA.
Parametric mapping has become a standard of care technique for the non-invasive assessment of myocardial edema and fibrosis. Conventional MOLLI-based T1 mapping is susceptible to many confounding effects particularly in the pediatric population. The requirement for compliant breath holds is a major limitation for younger or more ill patients.
View Article and Find Full Text PDFClin Radiol
December 2024
Ankara University Faculty of Medicine, Department of Radiology, Ankara, Turkey. Electronic address:
Aim: The aim of the study was to evaluate and compare contrast-to-noise ratios (CNRs) and signal-to-noise ratios (SNRs) of pre- and postcontrast T1 maps, T2 maps, early and late gadolinium images in terms of visual assessment of cardiac thrombus, to see if maps can replace contrast-enhanced images for detection of cardiac thrombus.
Materials And Methods: T1, T2 maps, and postcontrast images of 22 patients with cardiac thrombus were retrospectively evaluated for SNR and CNR. SNR and CNR values of thrombus, blood pool, and myocardium measured at maps and contrast-enhanced images were compared with each other.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!