单能双能量计算机断层成像：心胸应用

Monoenergetic Dual-energy Computed Tomographic Imaging: Cardiothoracic Applications.

作者信息

Lenga Lukas, Albrecht Moritz H, Othman Ahmed E, Martin Simon S, Leithner Doris, D'Angelo Tommaso, Arendt Christophe, Scholtz Jan-Erik, De Cecco Carlo N, Schoepf U Joseph, Vogl Thomas J, Wichmann Julian L

机构信息

*Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt ‡Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Tübingen, Germany †Department of Radiology and Radiological Science, Division of Cardiovascular Imaging, Medical University of South Carolina, Charleston, SC §Section of Radiological Sciences, Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Messina, Italy ∥Cardiac MR PET CT Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA.

出版信息

J Thorac Imaging. 2017 May;32(3):151-158. doi: 10.1097/RTI.0000000000000259.

DOI:10.1097/RTI.0000000000000259

PMID:28198752

Abstract

Monoenergetic imaging is an increasingly used reconstruction technique in postprocessing of dual-energy computed tomography (DECT). The main advantage of this technique is the ability to substantially increase image contrast of structures with uptake of iodinated contrast material. Although monoenergetic imaging was mainly used in oncological DECT applications, recent research has further demonstrated its role in vascular imaging. Using this dedicated postprocessing algorithm, image contrast of vascular structures in the thorax can be increased, a drastic reduction of contrast material is feasible, and even beam-hardening artifacts can be reduced. The aim of this review article is to explain the technical background of this technique, showcase its relevance in cardiothoracic DECT, and provide an outlook on the clinical impact of this technique beyond solely improvements in image quality.

摘要

单能量成像在双能计算机断层扫描（DECT）的后处理中是一种越来越常用的重建技术。该技术的主要优点是能够显著提高摄取碘化造影剂的结构的图像对比度。尽管单能量成像主要用于肿瘤学DECT应用，但最近的研究进一步证明了其在血管成像中的作用。使用这种专用的后处理算法，可以提高胸部血管结构的图像对比度，大幅减少造影剂的用量是可行的，甚至可以减少束硬化伪影。这篇综述文章的目的是解释该技术的技术背景，展示其在心胸DECT中的相关性，并展望该技术在临床方面的影响，而不仅仅局限于图像质量的改善。