Dual-Energy and Photon-Counting Computed Tomography in Vascular Applications-Technical Background and Post-Processing...

Area of Science:

• Radiology
• Medical Imaging Technology
• Diagnostic Imaging

Background:

• Computed tomography (CT) is a cornerstone of clinical diagnostics.
• Recent advancements include dual-energy CT (DECT) and photon-counting CT (PCCT).
• These technologies enhance diagnostic capabilities and image quality.

Purpose of the Study:

• To review the principles of DECT and PCCT.
• To outline the advantages and disadvantages of these advanced CT techniques.
• To discuss their applications in vascular radiology.

Main Methods:

• Narrative review of DECT and PCCT technologies.
• Explanation of DECT's dual-energy spectrum acquisition.
• Description of PCCT's photon energy quantification.

Main Results:

• DECT allows material differentiation (e.g., calcium, iodine).
• PCCT enables reduced radiation dose and improved spatial/temporal resolution.
• Both techniques show broad utility in radiological applications.

Conclusions:

• DECT and PCCT represent significant technological progress in CT.
• These advanced methods offer enhanced diagnostic information, particularly in vascular imaging.
• Further integration into clinical practice is expected.