Background Movement abnormalities in the left ventricle (LV) were shown to be not really frequent in thalassemia major (TM) patients but they were associated with age, myocardial iron overload, LV dilation and dysfunction, and myocardial fibrosis. No data are available about the prevalence and the correlates of right ventricular (RV) wall motion abnormalities. This study investigated the relati...

BACKGROUND The presence of persistent myocardial uptake of 18F-deoxyglucose (FDG) within hypoperfused, dysfunctional segments has been shown to predict the recovery of regional contractile function after revascularization. The spectrum of metabolic responses of such hibernating tissue to revascularization is less clear. METHODS AND RESULTS Sixteen patients with previous infarction were studie...

BACKGROUND Myocardial motion is an important observable for the assessment of heart condition. Accurate estimates of ventricular (LV) wall motion are required for quantifying myocardial deformation and assessing local tissue function and viability. Harmonic Phase (HARP) analysis was developed for measuring regional LV motion using tagged magnetic resonance imaging (tMRI) data. With current comp...

BACKGROUND Some patients may have normal wall motion after myocardial infarction. The aim of this study was to determine the prevalence and prognosis of patients with myocardial scar in the absence of abnormal wall motion. We studied patients with suspected or known coronary artery disease (CAD) who were referred for cardiovascular magnetic resonance (CMR) for the assessment of global and regio...

Quantitative cardiac imaging in clinical routine nowadays encompasses the determination of global functional myocardial parameters such as left ventricular ejection fraction, volumes and myocardial mass. However, different strategies have been proposed within the last decades to acquire and quantify data in terms of myocardial perfusion, blood flow in the heart and the great vessels as well as ...

We described here a patient envenomated by a bee sting that caused myocardial damage compatible with non-ST elevation acute myocardial infarction. She developed a typical course of myocardial infarction; the ECG changes were reversed to almost all normal limits. She had normal coronary angiography and reversible wall motion abnormalities. Myocardial damage following prolonged spasm in the coron...

Left ventricular asynergy in myocardial infarction was assessed quantitatively by computer analysis of the cross sectional echocardiogram. Short axis cross sectional images of the left ventricle at the levels of the mitral valve, papillary muscle, and apex were recorded by a phased array sector scanner in 30 patients with healed myocardial infarction and 15 normal controls. Endocardial and epic...

BACKGROUND Even in the absence of a previous myocardial infarction, patients with coronary artery disease often present with chronic regional wall motion abnormalities that are reversible spontaneously or after coronary revascularization. In these patients, regional dysfunction has been proposed to result either from prolonged postischemic dysfunction (myocardial "stunning") or from adaptation ...

Background Dobutamine stress magnetic resonance (DSMR-wall motion) has been established as a valuable tool for the detection of inducible wall motion abnormalities. Additional perfusion imaging during DSMR (DSMR-perfusion) was shown to improve sensitivity for the detection of myocardial ischemia. Current experience is based on 1.5T only, mainly due to insufficient image quality of steady state ...

"Echoventriculography", an echocardiographic method specially developed to scan the regional function of the left ventricle, is introduced for studying left ventricular wall motion alteration in patients with acute myocardial infarction. Purposeful probe directions, a 2:1 magnification, and careful adjustment of the gain and reject levels allowed a direct echocardiographic scanning of practical...