title: Patterns of Opacification in Coronary CT Angiography: Contrast Differences and Gradients.
abstract: Iodinated contrast delivery is a key component of coronary CT angiography. However, the purpose of contrast delivery has been limited to morphology alone. Specifically, iodine opacification of the coronary lumen has been used to separate it from the coronary artery wall and lesions within the coronary arteries. Because contrast is delivered to the coronary arteries according to the coronary blood flow, there is flow information encoded within the contrast opacification which, depending on CT hardware and acquisition protocol, can be recognized in coronary CT angiography. In addition, metrics related to flow have been identified and studied. They include coronary contrast opacification differences and contrast opacification gradients.
authors.affiliation: Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115.
authors.forename: Frank J
authors.initials: FJ
authors.lastname: Rybicki
authors.affiliation: Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115.
authors.forename: Yu-Hsiang
authors.initials: YH
authors.lastname: Juan
authors.affiliation: Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115.
authors.forename: Sachin S
authors.initials: SS
authors.lastname: Saboo
authors.affiliation: Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: George
authors.affiliation: Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115.
authors.forename: Rani
authors.initials: R
authors.lastname: Bhivasankar
authors.affiliation: Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Mitsouras
keywords: contrast opacification differences; contrast opacification gradients; coronary CT angiography; coronary artery disease