1. Dual-energy computed tomography in acute ischemic stroke: state-of-the-art.
- Author
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Mangesius S, Janjic T, Steiger R, Haider L, Rehwald R, Knoflach M, Widmann G, Gizewski E, and Grams A
- Subjects
- Humans, Tomography, X-Ray Computed, Brain Ischemia diagnostic imaging, Ischemic Stroke, Stroke diagnostic imaging
- Abstract
Dual-energy computed tomography (DECT) allows distinguishing between tissues with similar X-ray attenuation but different atomic numbers. Recent studies demonstrated that this technique has several areas of application in patients with ischemic stroke and a potential impact on patient management. After endovascular stroke therapy (EST), hyperdense areas can represent either hemorrhage or contrast staining due to blood-brain barrier disruption, which can be differentiated reliably by DECT. Further applications are improved visualization of early infarctions, compared to single-energy computed tomography, and prediction of transformation into infarction or hemorrhage in contrast-enhancing areas. In addition, DECT allows detection and evaluation of the material composition of intra-arterial clots after EST. This review summarizes the clinical state-of-the-art of DECT in patients with stroke, and features some prospects for future developments. KEY POINTS: • Dual-energy computed tomography (DECT) allows differentiation between tissues with similar X-ray attenuation but differentatomic numbers. • DECT has several areas of application in patients with ischemic stroke and a potential impact on patient management. • Prospects for future developments in DECT may improve treatment decision-making.
- Published
- 2021
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