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Jurnale medicale
Circulation: Cardiovascular Imaging current issue
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Jurnale medicale Circulation: Cardiovascular Imaging current issue

5 Februarie 2015 18:55
5 Februarie 2015 18:55
Background—

Anthracycline-induced cardiotoxicity and myocardial dysfunction may be associated with apoptosis. Caspase 3 catalyzes a terminal step in apoptosis, and its expression may serve as a marker of cardiomyocyte apoptosis. We synthesized 18F-CP18, a caspase-3 substrate and evaluated cardiac 18

mai mult
Circulation: Cardiovascular Imaging current issue
4 Februarie 2015 13:39
Background—

Atrial fibrillation (AF) is associated with left atrial (LA) structural and functional changes. Cardiac magnetic resonance late gadolinium enhancement (LGE) and feature-tracking are capable of noninvasive quantification of LA fibrosis and myocardial motion, respectively. We sought to exa

mai mult
Circulation: Cardiovascular Imaging current issue
28 Ianuarie 2015 14:02
28 Ianuarie 2015 14:02
Background—

In pediatric echocardiography, pulse wave Doppler, and tissue Doppler imaging velocities are widely used to assess cardiac function. Current reference values and Z scores, allowing adjustment for growth are limited by inconsistent methodologies and small sample size. Using a standardized

mai mult
Circulation: Cardiovascular Imaging current issue
7 Ianuarie 2015 16:08
Background—

Rheumatic heart disease (RHD) remains a major public health problem worldwide. Although early diagnosis by echocardiography may potentially play a key role in developing active surveillance, systematic evaluation of simple approaches in resource poor settings are needed.

Methods and Res mai mult
Circulation: Cardiovascular Imaging current issue
14 Ianuarie 2015 15:26
16 Ianuarie 2015 15:24
Background—

Hemodynamically significant coronary artery disease is an important indication for revascularization. Stress myocardial perfusion imaging is a noninvasive alternative to invasive fractional flow reserve for evaluating hemodynamically significant coronary artery disease. The aim was to de

mai mult
Circulation: Cardiovascular Imaging current issue
16 Ianuarie 2015 15:24
Background—

Pseudonormal Doppler E-wave filling patterns indicate diastolic dysfunction but are indistinguishable from the normal filling pattern. For accurate classification, maneuvers to alter load or to additionally measure peak E' are required. E-wave deceleration time (DT) has been fractionated

mai mult
Circulation: Cardiovascular Imaging current issue
16 Ianuarie 2015 15:24
Background—

Quantitative myocardial perfusion imaging is increasingly used for the diagnosis of coronary artery disease. Quantitative perfusion imaging allows to noninvasively calculate fractional flow reserve (FFR). This so-called relative flow reserve (RFR) is defined as the ratio of hyperemic myo

mai mult
Circulation: Cardiovascular Imaging current issue
16 Ianuarie 2015 15:24
16 Ianuarie 2015 18:03
16 Ianuarie 2015 18:03
Background—

Presence of coronary artery calcium (CAC), carotid plaque, and increased carotid intima-media thickness (IMT) may indicate elevated cardiovascular disease (CVD) risk; however, no large studies have compared them directly. This study compares predictive uses of CAC presence, carotid arter

mai mult
Circulation: Cardiovascular Imaging current issue
19 Ianuarie 2015 22:21
21 Ianuarie 2015 21:17
Background—

Although single-photon emission computed tomography myocardial perfusion imaging (SPECT MPI) has improved the diagnosis and risk stratification of patients with suspected coronary artery disease, it remains a primary source of low-dose radiation exposure for cardiac patients. To determin

mai mult
Circulation: Cardiovascular Imaging current issue
31 Decembrie 2014 15:27
Background—

Nonischemic cardiomyopathy is a common cause of left ventricular (LV) dysfunction and myocardial fibrosis. The purpose of this study was to noninvasively evaluate changes in segmental LV extracellular volume (ECV) fraction, LV velocities, myocardial scar, and wall motion in nonischemic c

mai mult
Circulation: Cardiovascular Imaging current issue
31 Decembrie 2014 15:27
Background—

Although computed tomography (CT) is commonly used for iliofemoral evaluation for transfemoral transcatheter aortic valve replacement, many centers worldwide use invasive angiography alone for this purpose. No study to date has evaluated the value of CT over angiography for the predictio

mai mult
Circulation: Cardiovascular Imaging current issue
31 Decembrie 2014 15:27
31 Decembrie 2014 15:27
Background—

As right ventricular (RV) remodeling in obesity remains underinvestigated, and the impact of left ventricular (LV) diastolic dysfunction on RV hypertrophy is unknown, we aimed to investigate whether (1) sex-specific patterns of RV remodeling exist in obesity and (2) LV diastolic dysfunct

mai mult
Circulation: Cardiovascular Imaging current issue
31 Decembrie 2014 15:27
31 Decembrie 2014 15:27
Background—

To examine the association between the American Heart Association’s 7 metrics of ideal cardiovascular health (ICH) and the presence of subclinical coronary atherosclerosis as assessed by coronary artery calcification (CAC) using electron-beam computed tomography.

Methods and Results—

Th

mai mult
Circulation: Cardiovascular Imaging current issue
31 Decembrie 2014 15:27
Background—

The value of echocardiography in assessing disease severity and predicting outcome in pediatric pulmonary arterial hypertension (PAH) is insufficiently defined. The aim of this study was to describe correlations between echocardiography and disease severity and outcome in pediatric PAH.

mai mult
Circulation: Cardiovascular Imaging current issue
30 Decembrie 2014 14:15
30 Decembrie 2014 14:15
Background—

Abdominal aortic aneurysm (AAA) rupture risk is currently determined based on size and symptoms. This approach does not address the rupture risk associated with small aneurysms. Given the role of matrix metalloproteinases (MMPs) in AAA weakening and rupture, we investigated the potential

mai mult
Circulation: Cardiovascular Imaging current issue
30 Decembrie 2014 14:15
Background—

Higher levels of physical activity are associated with reduced cardiovascular mortality but its effect on age-related changes in cardiac structure and function is unknown. The present study defines the effect of daily physical activity on age-related changes in cardiac structure, functio

mai mult
Circulation: Cardiovascular Imaging current issue
30 Decembrie 2014 14:15
Background—

Nonalcoholic fatty liver disease has emerged as a novel cardiovascular risk factor. The aim of the study was to assess the effect of different ectopic fat depots on left ventricular (LV) function in subjects with nonalcoholic fatty liver disease.

Methods and Results—

Myocardial and hepa

mai mult
Circulation: Cardiovascular Imaging current issue
30 Decembrie 2014 14:15
Background—

Application of emerging molecular MRI techniques, including chemical exchange saturation transfer (CEST)-MRI, to cardiac imaging is desirable; however, conventional methods are poorly suited for cardiac imaging, particularly in small animals with rapid heart rates. We developed a CEST-enc

mai mult
Circulation: Cardiovascular Imaging current issue
18 Noiembrie 2014 21:00
18 Noiembrie 2014 21:00
Background—

Myocardial infarction (MI) is one of the leading causes of heart failure. An increasing body of evidence links alterations in cardiac metabolism and mitochondrial function with the progression of heart disease. The aim of this work was to, therefore, follow the in vivo mitochondrial meta

mai mult
Circulation: Cardiovascular Imaging current issue
18 Noiembrie 2014 21:00
Background—

The optimum timing of surgery in asymptomatic patients with chronic severe primary degenerative mitral regurgitation (MR) remains controversial, and further markers are needed to improve decision-making. There are limited data that wall stress is increased in MR and may result in ventric

mai mult
Circulation: Cardiovascular Imaging current issue
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