نتایج جستجو برای: computed tomographic angiography
تعداد نتایج: 250921 فیلتر نتایج به سال:
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 To determine if coronary computed tomographic angiography enhances prediction of perioperative risk in patients before non-cardiac surgery and to assess the preoperative coronary anatomy in patients who experience a myocardial infarction after non-cardiac surgery. DESIGN Prospective cohort study. SETTING 12 centers in eight countries. PARTICIPANTS 955 patients with, or at risk ...
C tomographic angiography (CTA) of the coronary arteries is in its relative infancy. Newergeneration electron beam computed tomography and the rapid development of multidetector ( 64 slices) computed tomography (MDCT) with increased spatial resolution (0.33 mm) and temporal resolution (50 to 100 ms with multisegment reconstruction), shorter breathhold (5 to 12 seconds), and less contrast (60 to...
1 Hospital Mater Dei; Department of Internal Medicine, Grupo de Estudo da Hemostasia e Trombose (GETHe), Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil 2 Instituto de Previdência do Estado de Minas Gerais, Department of Internal Medicine, GETHe, Faculty of Medicine, UFMG, Belo Horizonte, MG, Brazil 3 Hospital Mater Dei, Belo Horizonte, MG, Brazil 4 ...
BACKGROUND The choice of imaging techniques in patients with suspected coronary artery disease (CAD) varies between countries, regions, and hospitals. This prospective, multicenter, comparative effectiveness study was designed to assess the relative accuracy of commonly used imaging techniques for identifying patients with significant CAD. METHODS AND RESULTS A total of 475 patients with stab...
Table 1 Radiation dose (and comparative background radiation exposure) associated with various imaging techniques, including plain-film x-rays, computed tomography (CT) scans and computed tomography angiography (CTA) scans. Exposure calculated with ImPACT CT Patient Dosimetry Calculator (Version 0.99w, ImPACT, St. George’s The radiation exposure of Computed Tomographic Angiography (CTA) in DIEP...
BACKGROUND AND PURPOSE Preclinical studies showed that thrombi can be permeable and may, therefore, allow for residual blood flow in occluded arteries of patients having acute ischemic stroke. This perviousness may increase tissue oxygenation, improve thrombus dissolution, and augment intra-arterial treatment success. We hypothesize that the combination of computed tomographic angiography and n...
A 14-month-old boy was transferred because of dilated and hypertrophied left ventricle, neutropenia, and developmental delay. After checking computed tomographic angiography with contrast-dye, the patient showed acute exacerbation and finally died from multi-organ failure despite intensive cares. From genetic analysis, we revealed that the patient had Barth syndrome and found a novel hemizygous...
Iatrogenic type A dissection caused by percutaneous coronary intervention is a rare but life-threatening condition. Computed tomographic angiography is an excellent diagnostic tool commonly utilized if such procedural complication is clinically suspected. There are, however, potential diagnostic challenges. Herein, we present an illustrative case of iatrogenic type A dissection successfully dia...
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