Ventilation and hypercapnic respiratory failure
Common misconceptions and mistakes • 100% O 2 sat is reassuring with regard to impending respiratory failure in a tachypneic, dyspneic patient • Hypercapnic respiratory failure is ruled out by…
Echocardiographic Particle Image Velocimetry: A Novel Technique for Quantification of Left Ventricular Blood Vorticity Pattern
Background In this study, the functionality of echocardiographic particle imaging velocimetry (E-PIV) was compared with that of digital particle imaging velocimetry (D-PIV) in an in vitro model. In addition, its…
Quantitative Analysis of Function and Perfusion during Dobutamine Stress in the Detection of Coronary Stenoses: Two-Dimensional Strain and Contrast Echocardiography Investigations
Background The recent development of accurate methods to measure two-dimensional strain during dobutamine stress echocardiography has reactivated the debate as to the respective value of myocardial perfusion versus myocardial function…
Intermittent, Noncyclic Dysfunction of a Mechanical Aortic Prosthesis by Pannus Formation
Mechanical aortic prosthesis dysfunction can result from thrombosis or pannus formation. Pannus formation usually restricts systolic excursion of the occluding disk, resulting in progressive stenosis of the aortic prosthesis. Intermittent…
Extensive Nonbacterial Thrombotic Endocarditis Isolated to the Tricuspid Valve in Primary Antiphospholipid Syndrome
Nonbacterial thrombotic endocarditis is a condition characterized by noninfectious valvular vegetations and is associated with numerous conditions, including the antiphospholipid syndrome. Although vegetations most frequently affect the left-sided valves, isolated…
Effect of Acoustic Power on In Vivo Molecular Imaging with Targeted Microbubbles: Implications for Low-Mechanical Index Real-Time Imaging
Background The aim of this study was to evaluate the influence of acoustic power on ultrasound molecular imaging data with targeted microbubbles. Methods Imaging was performed with a contrast-specific multipulse…
Intraoperative Surface Echocardiography: Reinventing a Good Technique
Kathryn E. Glas, MD, FASE Scott T. Reeves, MD, FASE New and old intermingle on a regular basis in society, be it in fashion, politics, or even medicine. Surface echocardiography…
Radiotherapy-Induced Mitral Stenosis: A Three-Dimensional Perspective
Mediastinal irradiation for cancers, mainly breast cancer and Hodgkin’s disease, has numerous potential adverse effects, including coronary artery disease, pericarditis, cardiomyopathy, valvular disease, and conduction abnormalities. The prevalence of valvular…
President’s Message
Roberto M. Lang, MD, FASE By now, many of our members have experienced, read, or at least heard about three dreaded requirements being considered and/or imposed by private insurance carriers…
Variations in Carotid Artery Intima–Media Thickness during the Cardiac Cycle in Children
Background There is paucity of research looking at variations in carotid artery intima–media thickness (CIMT) during the cardiac cycle in children. The aim of this study was to ascertain variations,…
