Image Digitization Systems, Angiography/Cardiovascular
Definition : Image digitization systems designed to convert an input signal taken from a television (TV) camera or from a charge-coupled device (CCD) into a digital signal and process the digital signal to obtain images that can be displayed on a TV monitor (usually after a digital-to-analog conversion) or in other computerized imaging systems. Hard-copy x-ray films of final images can also be made using a multi-image camera or a laser imager. These systems consist of an analog-to-digital converter, a high-speed digital memory, a digital storage device (e.g., optical disk), a digital-to-analog converter, and a controlling computer. Angiographic image digitization systems are designed to be added to existing angiographic or cardiovascular radiographic/fluoroscopic systems to perform a variety of computer- assisted x-ray image acquisition, processing, and display functions. Most of these combined systems are primarily used for digital subtraction angiography, a technology that involves the subtraction of a previous digital image from new images obtained after injecting a contrast agent into the patient.
Entry Terms : "Cardiovascular Image Digitization Systems" , "Angiography Digital Imaging Systems" , "Digital Imaging Systems, Angiography/Cardiovascular" , "Angiography Image Digitization Systems" , "Cardiovascular Digital Imaging Systems" , "DSA Systems" , "Digital Subtraction Angiography Systems" , "Digital Angiography Systems" , "Digital Intravascular Angiography Systems" , "Digital Vascular Imaging Systems" , "Computers, Digital Radiography" , "Digital Subtraction Angiography (DSA) Systems"
UMDC code : 16560