Learn More
"Ad hoc" percutaneous coronary interventions (PCIs)-those performed immediately after diagnostic catheterization-have been reported in earlier studies to be safe with a suggestion of higher risk in certain subgroups. Despite increasing use of this strategy, no data are available in recent years with new device technology. We studied use of an ad hoc(More)
BACKGROUND Randomized trials comparing coronary artery bypass graft surgery (CABG) with percutaneous coronary interventions (PCIs) for patients with multivessel coronary disease (MVD) report similar long-term survival for CABG and PCI. These studies used a highly selected population of patients and providers, and their results may not be generalizable to(More)
OBJECTIVES We sought to determine whether the changing practice of interventional cardiology has been associated with improved outcomes for women, and how these outcomes compare with those for men. BACKGROUND Previous work from the early 1990s suggested women are at a higher risk than men for adverse outcomes after percutaneous coronary interventions(More)
The spherical harmonic (SPHARM) description is a powerful surface modeling technique that can model arbitrarily shaped but simply connected 3D objects and has been used in many applications in medical imaging. Previous SPHARM techniques use the first order ellipsoid for establishing surface correspondence and aligning objects. However, this first order(More)
OBJECTIVES Our purpose was to determine if "Japanese style" technical strategies can be successfully applied in the U.S. practice environment and to better understand the learning curve for chronic total occlusion (CTO) percutaneous coronary intervention (PCI). BACKGROUND Procedural technical success remains the major limiting factor for CTO PCI, and has(More)
OBJECTIVES We sought to determine if transient and persistent elevations in creatinine following percutaneous coronary intervention (PCI) resulted in poor survival. BACKGROUND Limited survival data exist that defines the natural survival history of transient and persistent renal dysfunction following interventional PCI cases. METHODS Data were collected(More)
We propose a novel framework to predict pacing sites in the left ventricle (LV) of a heart and its result can be used to assist pacemaker implantation and programming in cardiac resynchronization therapy (CRT), a widely adopted therapy for heart failure patients. In a traditional CRT device deployment, pacing sites are selected without quantitative(More)
RATIONALE AND OBJECTIVES The aim of the study is to build cardiac wall motion models to characterize mechanical dyssynchrony and predict pacing sites for the left ventricle of the heart in cardiac resynchronization therapy (CRT). MATERIALS AND METHODS Cardiac magnetic resonance imaging data from 20 patients are used, in which half have heart failure(More)
OBJECTIVES Using a large, current, regional registry of percutaneous coronary interventions (PCI), we identified risk factors for postprocedure vascular complications and developed a scoring system to estimate individual patient risk. BACKGROUND A vascular complication (access-site injury requiring treatment or bleeding requiring transfusion) is a(More)