Korean J Radiol.  2019 Dec;20(12):1583-1596. 10.3348/kjr.2019.0327.

Clinical Applications of Wide-Detector CT Scanners for Cardiothoracic Imaging: An Update

Affiliations
  • 1Department of Radiology, College of Medicine, Dong-A University, Busan, Korea. medcarrot@dau.ac.kr

Abstract

Technical developments in multidetector computed tomography (CT) have increased the number of detector rows on the z-axis, and 16-cm wide-area-coverage CT scanners have enabled volumetric scanning of the entire heart. Beyond coronary arterial imaging, such innovations offer several advantages during clinical imaging in the cardiothoracic area. The wide-detector CT scanner markedly reduces the image acquisition time to less than 1 second for coronary CT angiography, thereby decreasing the volume of contrast material and radiation dose required for the examination. It also eliminates stair-step artifacts, allowing robust improvements in myocardial function and perfusion imaging. Additionally, new imaging techniques for the cardiothoracic area, including subtraction imaging and free-breathing scans, have been developed and further improved by using the wide-detector CT scanner. This article investigates the technical developments in wide-detector CT scanners, summarizes their clinical applications in the cardiothoracic area, and provides a review of the recent literature.

Keyword

Multidetector computed tomography; Wide-area detector; Coronary artery disease; Imaging; Technology

MeSH Terms

Angiography
Artifacts
Coronary Artery Disease
Heart
Multidetector Computed Tomography
Perfusion Imaging
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