Computed Tomography Angiography (Vascular)
Computed tomography angiography (CTA) is an exciting technology that allows noninvasive assessment of the vasculature. Over the past few decades, the use of CTA has grown tremendously due to the…
CARDIOVASCULAR IMAGING
Vascular Ultrasound
Ultrasound is the most popular noninvasive imaging technique for evaluation of the vascular system. Vascular ultrasound has significant advantages. It provides comprehensive anatomic and flow details of the vascular system,…
Radionuclide Imaging (Cardiac)
Principles of Nuclear Cardiac Imaging and Performing Single-Photon Emission Computed Tomography and Positron Emission Tomography Studies Cardiac imaging using nuclear techniques plays a critical role in the diagnostic and therapeutic…
Cardiac Magnetic Resonance Imaging: Techniques and Protocols
Cardiac magnetic resonance imaging (MRI) sequences are numerous, and possible imaging planes are infinite. Each sequence is designed to provide specific information about function, anatomy, or tissue characteristics. Each sequence…
Cardiac Gated Computed Tomography
General Principles Cardiac computed tomography (CT) is a specialized form of chest CT. All the technical principles that govern the acquisition and reconstruction of chest CT also apply to cardiac…
Coronary Angiography: Technique
Background Despite major advances in other imaging modalities, invasive cardiac catheterization remains a critical component of cardiovascular care. More than 1.1 million cardiac catheterization procedures, in addition to approximately 1.3…
Solitary Lucent Defect
Abstract A solitary lucent defect may result from a necrotic cavity, cyst, pneumatocele, or a loculated hydropneumothorax, but of these possibilities, a necrotic cavity is the most common. A necrotic…
Solitary Pulmonary Nodule
Abstract The solitary pulmonary nodule is a common challenge for the radiologist. Size, location, and attenuation are important characteristics in determining perception and detectability of a nodule. Computed tomography (CT)…
Multiple Lucent Lesions
Abstract Multiple lucent lesions are most often the result of infectious diseases. Multiple cavities frequently complicate virulent bacterial, tuberculous, and parasitic or fungal infections. Septic emboli cause multiple cavities that…
Hyperlucent Thorax
Abstract Pneumothorax is the most urgent cause of a hyperlucent thorax. Pneumothorax has a variety of causes ranging from trauma to rupture of pulmonary cavities, cysts, or bullae into the…
