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Cardiothoracic CT Angiography: Current Contrast Medium Delivery Strategies

2011; American Roentgen Ray Society; Volume: 196; Issue: 3 Linguagem: Inglês

10.2214/ajr.10.5814

1546-3141

Markus Weininger, J. Michael Barraza, Corey A. Kemper, John F. Kalafut, Philip Costello, U. Joseph Schoepf,

Advanced X-ray and CT Imaging

Over the last decade, rapid technologic evolution in CT has resulted in improved spatial and temporal resolution and acquisition speed, enabling cardiothoracic CT angiography to become a viable and effective noninvasive alternative in the diagnostic algorithm. These new technologic advances have imposed new challenges for the optimization of contrast medium delivery and image acquisition strategies.Thorough understanding of contrast medium dynamics is essential for the design of effective acquisition and injection protocols. This article provides an overview of the fundamentals affecting contrast enhancement, emphasizing the modifications to contrast material delivery protocols required to optimize cardiothoracic CT angiography.