clinical and pathologic aspects of coronary artery disease in men of various age groups: a study of 950 autopsied cases from the Armed Forces Institute of Pathology. evaluation of left ventricular thrombi by two-dimensional echocar-diography: effect of anticoagulant therapy. SUMMARY A new echocardiographic contrast agent, gelatin-encapsulated microbubbles, that produces an intramyocardial contr...

background: acute myocardial infarction (ami) is the leading cause of disability and death in iran and many other countries. objective: to investigate the prognostic value of ccl5 and ccl18 in patients with acute myocardial ischemia. methods: in this cohort study we recruited and followed 50 patients with acute anterior myocardial infarction (aami) for developing cardiovascular accidents in a 6...

abstract introduction: stroke is more common in patients with cerebral microembolisms. frequency of cerebral microembolisms (high intensity transient signals, hits) in acute myocardial infarction has been reported about 17%. the factors that influence on microembolism after myocardial infarction (mi) are not definitive. type of mi, ejection fraction, hx of streptokinase is the factors that were...

Constrictive pericarditis can lead to paradoxical interventricular septal motion. Displacement encoding with stimulated echoes (DENSE) magnetic resonance imaging (MRI) provides a method for quantifying myocardial motion and strain. A case of constrictive pericarditis is presented and the diastolic 'septal bounce' is clearly evident in both anatomical and DENSE ciné MRI images. (See video link t...

AIM The aim of this study was to evaluate the feasibility of myocardial wall-motion and perfusion assessment using contrast echocardiography during real-time three-dimensional (RT3D) adenosine stress test, and compare its diagnostic accuracy with the two-dimensional (2D) method using coronary angiography as reference. METHODS AND RESULTS Patients with known or suspected coronary artery diseas...

BACKGROUND Previous assessments of myocardial viability using positron emission tomography (PET) relied on demonstration of glucose metabolism in hypoperfused asynergic segments using the glucose analogue [18F]2-fluoro-2-deoxyglucose (FDG). Recently, it was shown that myocardial viability could be assessed by calculating the water-perfusable tissue index (PTI) for the asynergic region. PTI repr...

In 61 patients (77 studies) who had a transmural myocardial infarction, we compared the left ventricular ejection fraction by echocardiography with the ejection fraction determined by a computerized radioisotope technique that makes no assumptions regarding left ventricular geometry. In 31 studies of 26 patients with normal left ventricular wall motion by videotracking and normal left heart siz...

asynergy was present preoperatively in 12 of the 18 patients in the first two groups. Marked improvement occurred in all and a normal wall motion was restored in the majority following surgery. More pronounced improvement was noted in the preinfarction syndrome as compared to the group with chronic ischemia and no previous infarct. The ejection fraction was reduced in 12 of the 18 patients in t...

asynergy was present preoperatively in 12 of the 18 patients in the first two groups. Marked improvement occurred in all and a normal wall motion was restored in the majority following surgery. More pronounced improvement was noted in the preinfarction syndrome as compared to the group with chronic ischemia and no previous infarct. The ejection fraction was reduced in 12 of the 18 patients in t...

BACKGROUND Patency of the infarct-related artery (IRA) after acute myocardial infarction (AMI) may not reflect the magnitude of tissue perfusion. In animal models of AMI, myocardial cellular necrosis has been associated with extensive capillary damage. Because myocardial contrast echocardiography (MCE) can define the spatial distribution of microvascular perfusion, we hypothesized that it could...