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Abstract

Dual-energy computed tomography (DECT) has emerged as an advanced imaging technique with the potential to significantly enhance clinical decision-making across a variety of medical fields. By utilizing two different energy levels during the scanning process, DECT provides additional tissue characterization and allows for the differentiation of materials based on their atomic composition. This paper reviews the principles, applications, and advancements of dual-energy CT in clinical practice, with particular emphasis on its use in oncology, cardiology, musculoskeletal imaging, and vascular disease. Additionally, challenges and future directions for DECT technology are discussed, with a focus on improving its clinical utility and integration into routine practice.