Background Exercise CMR is an emerging technique for understanding the effects of physiological stress on the cardiovascular system in health and disease. Accurate assessment of cardiovascular performance during exercise is challenging due to high heart rates and respiratory motion therefore new imaging tools are required for real-time measurement of biventricular function. In this study we eva...

Introduction: Coronary vessel wall imaging with MR has the ability to obtain vessel wall thickness and lumen d invasively (1,2,3). Apart from cardiac and respiratory motion, a major challenge of coronary vessel wall imaging is th small thickness (0.5-2mm) and thus the need for high resolution. With the wider spread availability of high field 3T clin higher resolution coronary vessel wall imagin...

This paper approaches the fixed-point computation involved in magnetic resonance image (MRI) reconstruction with most common technique, the Fast Fourier Transform (FFT) on a parallelcomputing machine, Connex Array. We will show that fixed-point computation is a good alternative in real-time magnetic resonance imaging reconstruction as it can seriously improve reconstruction time (about 75% bett...

c r o “ e m s d r w n Late gadolinium enhancement (LGE) using cardiac magnetic resonance (CMR) has emerged as the gold-standard technique for imaging of myocardial scar. The basic principle is inversion-recovery imaging after a 5to 10-min delay following intravenous administration of gadolinium contrast (1). With appropriate settings, normal myocardium appears nulled or black, whereas nonviable...

Background Stress cardiac magnetic resonance (CMR) imaging has become a promising non-invasive technique that is being increasingly used to evaluate acute coronary syndrome (ACS) patients. Specifically, lowand intermediate-risk ACS patients require non-invasive imaging for risk stratification, unlike high-risk ACS patients whom may receive invasive coronary angiography (ICA) directly. This stud...

Magnetic resonance imaging has an increasing role in the assessment of ischaemic heart disease. Its superb spatial and temporal resolution currently allows accurate assessment of cardiac function, regional wall motion, and the extent of myocardial infarction. Regional myocardial perfusion can also be assessed, most commonly by a first-pass technique. Non-invasive imaging of the coronary arterie...

Although pericardial diseases are common in the daily clinical practice and can result in a significant morbidity and mortality, imaging of patients with suspected or known pericardial disorders remain challenging. Multimodality imaging is part of the management of pericardial diseases. Echocardiography, cardiac computed tomography, and cardiovascular magnetic resonance are often used as comple...

UNLABELLED Cardiovascular disease is the leading cause of mortality worldwide. Stem cell transplantation has become a new treatment option for cardiovascular disease because the stem cells are able to migrate to damaged cardiac tissue, repair the myocardial infarction area and ultimately reduce the role of the infarct-related mortality. Cardiac magnetic resonance imaging (MRI) is a new robust n...

considering the nonlinear hyperelastic or viscoelastic nature of soft tissues has an important effect on modeling results. in medicalapplications, accounting nonlinearity begets an ill posed problem, due to absence of external force. myocardium can be consideredas a hyperelastic material, and variational approaches are proposed to estimate stiffness matrix, which take into account the linearand...

PURPOSE To assess whether black blood T2* cardiovascular magnetic resonance is superior to conventional white blood imaging of cardiac iron in patients with thalassaemia major (TM). MATERIALS AND METHODS We performed both conventional white blood and black blood T2* CMR sequences in 100 TM patients to determine intra and inter-observer variability and presence of artefacts. In 23 patients, 2 ...