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肌肉骨骼磁共振成像中狄克逊技术的脂肪抑制:图谱综述

Fat Suppression with Dixon Techniques in Musculoskeletal Magnetic Resonance Imaging: A Pictorial Review.

作者信息

Guerini Henri, Omoumi Patrick, Guichoux François, Vuillemin Valérie, Morvan Gérard, Zins Marc, Thevenin Fabrice, Drape Jean Luc

机构信息

Hôpital Cochin, Imagerie Médicale Léonard de Vinci, Paris, France.

Department of Diagnostic and Interventional Radiology, CHUV Lausanne University Hospital, Lausanne, Switzerland.

出版信息

Semin Musculoskelet Radiol. 2015 Sep;19(4):335-47. doi: 10.1055/s-0035-1565913. Epub 2015 Nov 19.

Abstract

Dixon techniques are part of the methods used to suppress the signal of fat in MRI. They present many advantages compared with other fat suppression techniques including (1) the robustness of fat signal suppression, (2) the possibility to combine these techniques with all types of sequences (gradient echo, spin echo) and different weightings (T1-, T2-, proton density-, intermediate-weighted sequences), and (3) the availability of images both with and without fat suppression from one single acquisition. These advantages have opened many applications in musculoskeletal imaging. We first review the technical aspects of Dixon techniques including their advantages and disadvantages. We then illustrate their applications for the imaging of different body parts, as well as for tumors, neuromuscular disorders, and the imaging of metallic hardware.

摘要

狄克逊技术是用于在磁共振成像(MRI)中抑制脂肪信号的方法的一部分。与其他脂肪抑制技术相比,它们具有许多优点,包括:(1)脂肪信号抑制的稳健性;(2)能够将这些技术与所有类型的序列(梯度回波、自旋回波)以及不同的加权(T1加权、T2加权、质子密度加权、中等加权序列)相结合;(3)通过一次采集即可获得有脂肪抑制和无脂肪抑制的图像。这些优点在肌肉骨骼成像中开启了许多应用。我们首先回顾狄克逊技术的技术方面,包括其优缺点。然后我们举例说明它们在不同身体部位成像以及肿瘤、神经肌肉疾病和金属植入物成像中的应用。

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