نتایج جستجو برای: coronary ct angiography
تعداد نتایج: 344370 فیلتر نتایج به سال:
INTRODUCTION AND OBJECTIVES Although the diagnostic accuracy of CT in the non-invasive assessment of coronary arteries and grafts is known to be high, only a few studies have investigated the technique's reliability for the combined assessment of native coronary arteries, grafts, and vessels lying distal to anastomoses. The aim of this study was to evaluate the diagnostic accuracy of 64-slice C...
IMPORTANCE OF THE FIELD Cardiac computed tomography (CT) has recently emerged as a non-invasive alternative to catheter angiography for the assessment of coronary artery disease. Rapid technological advances have rendered coronary CT angiography to a robust, accurate and fast imaging modality to assess coronary artery disease in selected patients. The list of further indications in which cardia...
coronary artery anomalies are rare, with their incidence varying from 1 to 5%. angiography is a commonly used modality for the assessment of coronary artery anomalies. based on previous reports, a majority of coronary artery anomalies are of origin or distribution, with separate ostia of the left anterior descending artery and left circumflex artery. coronary artery anomalies may cause myocardi...
The fast volume coverage of retrospective ECG-gated multidetector-row helical CT(MDCT)arrows for acquisition of the entire heart volume with nearly isotropic spatial resolution(0.5×0.5×0.6 mm)within a single breath-hold. The sub-millimeter spatial resolution enables depiction of the major and also of peripheral coronary artery segments with lumen diameter down to 1 mm. The results of studies of...
UNLABELLED A 57-year-old male with type 2 diabetes mellitus presented to the emergency department with sudden onset of chest pain. Shock status and considerably low right arm blood pressure were detected. The patient underwent contrast-enhanced computed tomography (CT) which revealed dependent contrast pooling and layering of contrast material within the inferior vena cava. Post-processing CT a...
Background: Multislice computed tomography (MSCT) is a noninvasive method of detecting coronary artery disease (CAD). The purpose of the present study was to investigate the accuracy of 64-slice MSCT (64-MSCT) in daily practice, without patient selection. Methods: Sixty-four consecutive suspected CAD patients underwent both 64-MSCT and quantitative coronary angiography (QCA). The CT system The...
UNLABELLED For the noninvasive evaluation of coronary artery disease (CAD), both multislice CT and gated SPECT are available. How these 2 modalities relate, however, is yet unclear. The purpose of this study was to perform a head-to-head comparison of the results of multislice CT and gated SPECT on a regional basis (per vessel distribution territory) in patients with known or suspected CAD. M...
Introduction: Obstructive coronary artery disease (CAD) in proximal segments is associated with a poor prognosis. However, the contribution of plaque location to major adverse cardiovascular events (MACE) among patients nonobstructive CAD not well defined. We examined MACE risk relation non-obstructive by CT angiography (CCTA).
Cortical blindness has been occasionally reported as a complication after cerebral angiography, but is rare after coronary angiography. The contrast agent is believed to be responsible for the sudden development of blindness. Although the exact mechanism is unknown, it appears that the contrast agent disrupts the blood brain barrier, mostly in the occipital areas. We report a 77-year-old man wh...
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