AI Article Synopsis
Article Abstract
Background: Transesophageal echocardiography (TEE) is a trusted method of sizing atrial septal defect (ASD) prior to percutaneous closure but is invasive, uncomfortable, and may carry a small risk of morbidity and mortality. Magnetic resonance imaging (MRI) may be useful non-invasive alternative in such patients who refuse or are unable to tolerate TEE and may provide additional information on the shape of the A0SD.
Purpose: To validate the accuracy of ASD sizing by MRI compared with TEE.
Method: Twelve patients (mean age 30 years; range 11-60 years) scheduled for ASD closure underwent TEE, cine balanced fast field echo MRI (bFFE-MRI) in four-chamber and sagittal views and phase-contrast MRI (PC-MRI) with reconstruction using the two orthogonal planes of T2-weighted images as planning. The average of the three longest measurements for all imaging modalities was calculated for each patient.
Results: Mean maximum ASD length on TEE was 18.8 +/- 4.6 mm, mean length by bFFE-MRI was 20.0 +/- 5.0 mm, and mean length by PC-MRI was 18.3 +/- 3.6 mm. The TEE measurement was significantly correlated with the bFFE-MRI and PC-MRI measurements (Pearson r = 0.69, p = 0.02 and r = 0.59, p = 0.04, respectively). The mean difference between TEE and bFFE-MRI measurements was -1.2mm (95% CI: -3.7, 1.3) and between TEE and PC-MRI was 0.5 mm (95% CI: -1.9, 2.9). Bland-Altman analysis also determined general agreement between both MRI methods and TEE. The ASDs were egg-shaped in two cases, circular in 1 patient and oval in the remaining patients.
Conclusion: ASD sizing by MRI using bFFE and phase-contrast protocols correlated well with TEE estimations. PC-MRI provided additional information on ASD shapes and proximity to adjacent structures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00270-005-0003-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Intraoperative Hemodynamic Instability in a Patient With Ebstein's Anomaly Complicated With Eisenmenger Syndrome.
Case Rep Cardiol
December 2024
Department of Anesthesiology and Pain Management, Cleveland Clinic, Cleveland, Ohio, USA.
Ebstein's anomaly is a rare congenital displacement of the tricuspid valve resulting in atrialization of the right ventricle. About half of the patients with Ebstein's anomaly also have atrial septal defects, which may lead to chronic shunting and development of Eisenmenger syndrome. We describe a case of a sexagenarian male patient with a history of Ebstein's anomaly complicated with Eisenmenger syndrome undergoing robotic laparoscopic adrenalectomy who presented hemodynamic instability, hypoxemia, and likely right-to-left shunting intraoperatively, as well as the actions taken to correct it and have a successful outcome.
View Article and Find Full Text PDFMultimodality Imaging Supports Cardiac Lesion Diagnosis in Patient With Liver Carcinoma: A Case Report.
Cancer Rep (Hoboken)
December 2024
Vietnam National Heart Institute, Bach Mai Hospital, Hanoi, Vietnam.
Introduction: Nonbacterial thrombotic endocarditis (NBTE) is a rare cardiac manifestation in patients with advanced malignancies of the lungs, pancreas, gynecological system, and gastrointestinal tract. It is often confirmed postmortem by histopathological evidence of sterile platelet-fibrin deposits attached to the endocardium, most often on heart valves. To the best of our knowledge, our case is the first to report multiple heart lesions caused by the systemic effect of cholangiocarcinoma.
View Article and Find Full Text PDFVirus adaptation to heparan sulfate comes with capsid stability tradeoff.
Elife
December 2024
Department of Microbiology and Molecular Medicine, University of Geneva, Geneva, Switzerland.
Because of high mutation rates, viruses constantly adapt to new environments. When propagated in cell lines, certain viruses acquire positively charged amino acids on their surface proteins, enabling them to utilize negatively charged heparan sulfate (HS) as an attachment receptor. In this study, we used enterovirus A71 (EV-A71) as model and demonstrated that unlike the parental MP4 variant, the cell-adapted strong HS-binder MP4-97R/167G does not require acidification for uncoating and releases its genome in the neutral or weakly acidic environment of early endosomes.
View Article and Find Full Text PDFA Case of Pulmonary Arteriovenous Shunt Diagnosed by Microbubble Test via a Swan-Ganz Catheter.
Cureus
December 2024
Department of Cardiology, Japanese Red Cross Maebashi Hospital, Maebashi, JPN.
When encountering severe hypoxemia that does not respond to oxygen supplementation, it is essential to consider underlying right-to-left shunting. Among various diagnostic approaches, the microbubble test via transthoracic echocardiography (TTE) is a simple, noninvasive method for detecting pulmonary arteriovenous shunts, particularly in hepatopulmonary syndrome (HPS). Although microbubbles are usually administered peripherally, using a Swan-Ganz (SG) catheter to inject microbubbles directly into the pulmonary artery may provide even more definitive diagnostic information.
View Article and Find Full Text PDFOutcomes, mortality risk factors, and functional status post-Norwood: A single-center study.
Int J Cardiol Congenit Heart Dis
September 2024
Department of Pediatrics, Division of Cardiology, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA, USA.
Background: The Norwood operation (NO) for infants with univentricular physiology has high interstage mortality. This study evaluated outcomes and risk factors for mortality following NO.
Methods: Retrospective single-center study of patients undergoing NO from 2010 to 2020.
Want 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!