What Student Need to Know about Dual Energy Computed Tomography (DECT) In Radio Diagnosis.

Dual-energy computed tomography (DECT) yields precise anatomic and functional images by exploiting differences in the interactions of high- and low-energy photon spectra with different tissues' and materials' atomic components to more precisely differentiate the chemistry of tissues and disease processes than is possible with traditional single-energy CT scan acquisitions. The first DECT scanner approved for clinical use, a dual-source CT scanner, was introduced into the market in 2006. This scanner was followed a few years later by a CT scanner with fast kVp switching and fast detector technology. Since then, multiple scanners based on different dual-energy technologies have become available for clinical use from different vendors. There has also been refinement of different scanner types for optimizing image quality, postprocessing capabilities, radiation exposure, and ease of use. DECT provides a new layer of information, previously unavailable using SECT. This new information has the potential