نتایج جستجو برای: invasive angiography
تعداد نتایج: 185392 فیلتر نتایج به سال:
Background & Aim: One of the cause of anxiety for most patients is hospitalization. Once the patients are hospitalized for cardiac catheterization, the anxiety would be augmented. The anxiety raises body physiological and psychological activities such as: heart rate and respiratory rate. This research, as clinical trial study, has the objective to determine the influence of applying two methods...
The gold standard for diagnosis of CAD is the conventional coronary angiography, however, it is invasive and may be associated with complications. In addition, it provides little information on the early atherosclerotic wall changes that occurs in the coronary artery disease. Multislice CT coronary angiography has been introduced as a non invasive modality to detect coronary atherosclerosis and...
Exclusive dependence on invasive angiography to image coronary artery anatomy is now a thing of the past, thanks to the success of coronary computed tomography angiography (CTA). But evaluation of coronary artery function has remained largely invasive despite the development of cardiac magnetic resonance (CMR) methods to image coronary artery lumens and flow in the 1990s (1,2). Invasive studies...
This editorial refers to ‘The diagnostic accuracy of 256row computed tomographic angiography compared with invasive coronary angiography in patients with suspected coronary artery disease’, by S.-P. Chao et al., on page 1916 and ‘Diagnostic accuracy of 320-row multidetector computed tomography coronary angiography in the noninvasive evaluation of significant coronary artery disease’, by F.R. de...
OBJECTIVES Takayasu's arteritis (TA) is a rare disease, in which early diagnosis and assessment of treatment efficacy remain a problem. Signs and symptoms may be non-specific and conventional blood tests unreliable, with vascular inflammation often persisting in the face of a normal acute phase response. The current "gold standard" investigation, x ray angiography, is invasive and only identifi...
Background Vascular ring is less than 1% of congenital heart disease. Double aortic arch (DAA) is the most common form of it. Its detecting is important because of the effects of pressure on the esophagus and trachea. Case Report In this study, three children suffering from double aortic arch with symptoms of dysphagia and recurrent aspiration, which in two cases had led to cardiac arrest, wer...
PURPOSE To examine the accuracy of magnetic resonance (MR) coronary angiography for the evaluation of coronary artery stenoses, and to compare the results with conventional angiography as the reference standard. MATERIALS AND METHODS Eighteen patients were examined. The pulse sequence was an ECG-triggered, T2-prepared, fat-suppressed 3D true fast imaging with steady state precession sequence ...
AIMS In symptomatic patients with suspected coronary artery disease (CAD), computed tomographic angiography (CTA) improves patient selection for invasive coronary angiography (ICA) compared with functional testing. The impact of measuring fractional flow reserve by CTA (FFRCT) is unknown. METHODS AND RESULTS At 11 sites, 584 patients with new onset chest pain were prospectively assigned to re...
PURPOSE Normal myocardial perfusion imaging (MPI) is associated with excellent prognosis. However, in patients with persisting symptoms, it may be difficult to determine the patients in whom invasive angiography is justified to rule out false negative MPI. We evaluated predictors for severe stenosis at invasive angiography in patients with persisting symptoms after normal MPI. METHODS 229 con...
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