肠系膜CT血管造影：技术与特定应用探讨

Mesenteric CT angiography: a discussion of techniques and selected applications.

作者信息

Smith Christopher L, Horton Karen M, Fishman Elliot K

机构信息

Russell H. Morgan Department of Radiology, The Johns Hopkins Hospital, Baltimore, MD 21287, USA.

出版信息

Tech Vasc Interv Radiol. 2006 Dec;9(4):150-5. doi: 10.1053/j.tvir.2007.03.002.

DOI:10.1053/j.tvir.2007.03.002

PMID:17709079

Abstract

Sixty-four slice MDCT with advanced three-dimensional (3D) visualization software provides a unique opportunity for noninvasive evaluation of the mesenteric vasculature. Although standard axial computed tomography (CT) scanning has always allowed identification of the mesenteric arteries and veins, it is limited in its ability to adequately image small branches and complex anatomy. However, the submillimeter collimation possible with 64-slice CT scanners now allows the acquisition of true isotropic data and therefore high spatial resolution is now maintained in any imaging plane. This ability to visualize the mesenteric vasculature in real-time using 3D rendering and multiplanar reconstruction is crucial for comprehensive review of the complex mesenteric vessels. In this article, we discuss CT scanning protocols and 3D imaging techniques that can be utilized for CT angiography of the mesenteric vessels. Additionally, we will discuss several key conditions that illustrate the value of 3D imaging over standard axial images in mesenteric CT angiography.

摘要

配备先进三维（3D）可视化软件的64层螺旋CT为肠系膜血管系统的无创评估提供了独特的机会。尽管标准轴向计算机断层扫描（CT）一直能够识别肠系膜动脉和静脉，但其对小分支和复杂解剖结构的成像能力有限。然而，64层CT扫描仪实现的亚毫米级准直现在允许获取真正的各向同性数据，因此在任何成像平面上都能保持高空间分辨率。利用3D渲染和多平面重建实时可视化肠系膜血管系统的这种能力对于全面评估复杂的肠系膜血管至关重要。在本文中，我们将讨论可用于肠系膜血管CT血管造影的CT扫描方案和3D成像技术。此外，我们还将讨论几个关键病例，以说明在肠系膜CT血管造影中3D成像相对于标准轴向图像的价值。