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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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Recognizing and Minimizing Artifacts at Dual-Energy CT.

Anushri Parakh1, Chansik An1, Simon Lennartz1

  • 1From the Department of Radiology, Massachusetts General Hospital, 55 Fruit St, White 270, Boston, MA 02114 (A.P., S.L., F.J.S., A.R.K.); Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, Calif (C.A., B.M.Y.); Institute for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany (S.L.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.R.); and Department of Radiology, University of Washington, Seattle, Wash (D.V.S.).

Radiographics : a Review Publication of the Radiological Society of North America, Inc
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Summary
This summary is machine-generated.

Dual-energy CT (DECT) offers advanced diagnostic capabilities. Awareness of DECT artifacts and mitigation strategies is crucial for accurate interpretation and maximizing patient care value.

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Area of Science:

  • Radiology
  • Medical Imaging Technology

Background:

  • Dual-energy CT (DECT) represents a significant advancement in CT technology.
  • Recent innovations have facilitated its integration into routine clinical practice.

Purpose of the Study:

  • To provide a comprehensive overview of artifacts encountered in DECT.
  • To outline strategies for mitigating these artifacts and diagnostic pitfalls.

Main Methods:

  • Review of current commercial DECT platforms.
  • Analysis of artifact causes, appearances, and prevention strategies.
  • Pictorial overview of diagnostic pitfalls.

Main Results:

  • DECT artifacts can impact image quality and interpretation.
  • Optimization of scan protocols, reconstruction algorithms, and display settings is key.
  • Understanding artifact appearances is essential for error prevention.

Conclusions:

  • Effective use of DECT requires knowledge of potential artifacts.
  • Radiologists and technologists must be familiar with mitigation strategies.
  • Maximizing DECT's diagnostic potential relies on managing artifacts.