نتایج جستجو برای: cardiac mri
تعداد نتایج: 375587 فیلتر نتایج به سال:
BACKGROUND Cardiac allograft vasculopathy (CAV) is a major complication after heart transplantation, requiring frequent surveillance angiography. Though cardiac angiography is the gold standard, it is insensitive in detecting transplant vasculopathy and invasive. Perfusion MRI provides a noninvasive alternative and possibly a useful modality for studying CAV. We sought to compare the accuracy o...
Fetal echocardiography is the method of choice to visualize the fetal congenital cardiovascular anomalies. However, there are some disadvantages. Fetal cardiac magnetic resonance imaging (MRI) has the potential to complement ultrasound in detecting congenital cardiovascular anomalies. This pictorial review draws on our experience about fetal cardiac MRI; it describes the four-chamber view on fe...
MRI quantification of the cardiac ventricles is time-consuming, especially for the right ventricle due to its complex geometry. Using a short axis MRI protocol, we tested if briefly coaching persons inexperienced in cardiac MRI provides reliable right and left ventricular quantification. 22 healthy subjects (mean age 26 ± 4.2 years) underwent short-axis breath-hold SSFP sequence cardiac MRI. Tw...
Magnetic resonance imaging (MRI) is an established imaging modality, recognized for its value in the assessment and monitoring of a wide range of cardiac pathology. It can provide physiologic as well as anatomic information. Image interpretation requires both well-developed MRI skills and knowledge of cardiac pathology. Radiologists, because of their extensive experience in MRI, have an importa...
BACKGROUND Magnetic resonance imaging (MRI) is an important tool for cardiac research, and it is frequently used for resting cardiac assessments. However, research into non-pharmacological stress cardiac evaluation is limited. METHODS We aimed to design a portable and relatively inexpensive MRI cycle ergometer capable of continuously measuring pedalling workload while patients exercise to mai...
Background and Aims: Mouse models of cardiac disease play a major role in cardiovascular research but are frequently imaged with echocardiography rather than with MRI. While several groups have shown that MRI can image the mouse heart with an unparalleled level of breadth and detail, many in the cardiac research community remain concerned by the complexity and time-consuming nature of cardiac M...
We present an alternative method for evaluating cardiac fat tissue-dual gradient-echo in-phase and opposed-phase magnetic resonance imaging (IPOP-MRI) with electrocardiographic (ECG) gating. Conventional IPOP-MRI can be used to evaluate small amounts of fat and is widely used for abdominal imaging, but cardiac motion artifacts make its use difficult for cardiac imaging. Using ECG gating prior t...
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