Detection of Incidental Noncoronary Cardiac and Extracardiac Lesions Coronary CT angiography (CTA) may encounter both significant and nonsignificant noncoronary cardiac lesions. An overview of these lesions is presented in Table 30-1 ; their treatment has been reviewed in the preceding chapters…
The cavae are large vessels with near-vertical orientation, which makes them particularly accessible for assessment by all manner of contrast-enhanced CT examinations, such as axial source imaging, as well as sagittal and coronal projections. In addition to being diseased, both…
Pulmonary Artery Anatomy Normally, there are 17 bronchopulmonary segments, any of which may develop an embolism. The main pulmonary artery bifurcates into the right and left main pulmonary arteries. The right main pulmonary artery then trifurcates into three lobar arteries,…
Noninvasive assessment of carotid artery disease is desirable, as more than half of the permanent morbidity and mortality of the Asymptomatic Carotid Artery Surgery (ACAS) Trial was attributable to catheter-based angiography (1.3% of the 2.3% with permanent morbidity and mortality).…
CT scanning has emerged as the de facto test of choice for the identification of diseases of the aorta. As a result of its widespread and 24-hour availability, its suitability to evaluate critically ill patients (as long as they can…
The established tests for the assessment of congenital heart disease are transthoracic and transesophageal echocardiography, cardiac MRI, and cardiac catheterization. Cardiac CT (CCT) is an emerging alternative, because of its rapid acquisition times and post-processing robustness. The potential radiation risks…
The established tests for the assessment of congenital heart disease are transthoracic (TTE) and transesophageal echocardiography (TEE), cardiac MRI, and cardiac catheterization. Cardiac CT (CCT) is an emerging alternative because of its rapid acquisition times and post-processing robustness, but the…
Although CCT is able to image most lesions within the heart, especially larger ones, its role is secondary to those of echocardiography and MRI in the evaluation of lesions within the heart. CCT’s greatest contribution is to evaluate the thorax…
Cardiac CT Imaging in Patients with Atrial Fibrillation Cardiac CT (CCT) scanning remains problematic in atrial fibrillation (AF) in several ways because of inadequate temporal resolution: □ The heart rate tends to be higher in patients with AF ( Table…
Recent technical advances in cardiac CT (CCT) have been driven largely by the requirements for accurate noninvasive coronary angiography. As a consequence of improved image quality and temporal resolution, attention has also turned to the broader application of cardiac CT…