OBJECTIVES To clarify the prognostic value of strain and strain rate imaging in light-chain (AL) amyloidosis. BACKGROUND Myocardial strain and strain rate Doppler imaging are objective measurements that may detect regional subtle myocardial functional abnormalities in patients with amyloidosis. METHODS We prospectively examined 119 consecutive, untreated patients with biopsy-proven AL amylo...

BACKGROUND Cine Displacement Encoding with Stimulated Echoes (DENSE) provides accurate quantitative imaging of cardiac mechanics with rapid displacement and strain analysis; however, image acquisition times are relatively long. Compressed sensing (CS) with parallel imaging (PI) can generally provide high-quality images recovered from data sampled below the Nyquist rate. The purposes of the pres...

n this issue of the Journal, Tugcu et al1 report that by using velocity vector imaging (VVI), as well as tissue Doppler imaging (TDI), subclinical regional right ventricular (RV) dysfunction is diagnosed in patients with obstructive sleep apnea (OSA) who do not have systemic or pulmonary arterial hypertension. They found that the VVIderived RV peak systolic myocardial velocity, strain/strain ra...

into the pathogenesis of heart disease in patients treated for HIV infection. Lipodystrophy can indeed lead to ectopic spillover of triglyceride into nonadipose tissues—including the myocardium—and has previously been associated with adverse LV remodeling (2). Furthermore, that HAART exposure also predicted myocardial triglyceride content and LV dysfunction provides further insight into the pat...

OBJECTIVE The most important sequel of acute rheumatic fever is mitral stenosis in long-term. The aim of the study is to determine left ventricular (LV) functions by tissue Doppler imaging (TDI) and strain/strain rate echocardiography (SE/SRE) in mitral stenosis patients who had no clinical signs of heart failure. METHODS Our study was designed as cross-sectional study. The study population c...

Objectives: The rapid diagnosis and early risk stratification of patients presenting with acute myocardial infarction (AMI) is important. In experimental setting ultrasonic strain rate (SR) and strain (S) have been shown to identify changes in deformation predictive of ischemia. We sought to evaluate and compare regional myocardial function at “the risk zone” (ARZ) supplied by the culprit coron...

BACKGROUND Magnetic resonance spectroscopy can quantify myocardial triglyceride content in type 2 diabetic patients. Its relation to alterations in left (LV) and right (RV) ventricular myocardial functions is unknown. METHODS AND RESULTS A total of 42 men with type 2 diabetes mellitus were recruited. Exclusion criteria included hemoglobin A(1c) >8.5, known cardiovascular disease, diabetes-rel...

background pulmonary artery hypertension is the presentation of various types of cardiovascular and systematic diseases. there are different kinds of noninvasive methods to determine right ventricular function, pulmonary artery pressure, and effect of pulmonary hypertension on right ventricular function. these methods include the tissue doppler imaging (tdi) of the tricuspid annulus and the lon...