Computed tomography angiography: state-of-the-art imaging using multidetector-row technology.
Multidetector-row computed tomography (MDCT) is an essential diagnostic modality for many clinical algorithms. This is particularly true with regard to the evaluation of cardiovascular disease. As a result of increased image acquisition speed, improved spatial resolution, and greater scan volume, MDCT angiography (computed tomography angiography [CTA]) has become an excellent noninvasive imaging technique, replacing intra-arterial digital subtraction angiography for most vascular territories. The clinical success of CTA depends on precise synchronization of image acquisition with optimal vascular enhancement. As technology continuously evolves, however, this task can be challenging. It remains important to have a fundamental knowledge of the principles behind technical parameters and contrast medium administration. This article reviews these essential principles, followed by an overview of current clinical applications.
Napoli
Alessandro
A
Department of Radiology, Stanford University School of Medicine, Stanford, CA 94305, USA. napolia@stanford.edu
Fleischmann
Dominik
D
Chan
Frandics P
FP
Catalano
Carlo
C
Hellinger
Jeffrey C
JC
Passariello
Roberto
R
Rubin
Geoffrey D
GD
D000792:Angiography / Q000379:methods*; D002318:Cardiovascular Diseases / Q000000981:diagnostic imaging; D003287:Contrast Media / Q000008:administration & dosage; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D013679:Technology, Radiologic / Q000379:methods; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000379:methods*
D003287:Contrast Media