Reid D B, Douglas M, Diethrich E B
Glasgow Royal Infirmary, Scotland, United Kingdom.
J Endovasc Surg. 1995 Nov;2(4):356-64. doi: 10.1583/1074-6218(1995)002<0356:TCVOTD>2.0.CO;2.
Two-dimensional (2D) intravascular ultrasound (IVUS) imaging can now be reconstructed into three dimensions from serial 2D images captured following a "pullback" of the IVUS catheter through the target site. Three-dimensional (3D) reconstructions provide "longitudinal" and "volume" images. The former is similar to an angiogram and can be examined in three dimensions by rotating the image around its longitudinal axis, providing clinically useful information during endovascular procedures. The volume view takes longer to create and is not an exact reconstruction, but it provides images that can be rotated into any spatial position. It visualizes the luminal aspect of the vessel particularly well. The clinical value of 3D IVUS is in the diagnosis of vascular disease and the assessment of endovascular interventions. Three-dimensional IVUS, which provides better, more informative images than 2D IVUS, can be particularly useful intraprocedurally in detecting inaccurate deployment of intravascular stents and endoluminal grafts.
二维（2D）血管内超声（IVUS）成像现在可以通过将IVUS导管从目标部位“回撤”后捕获的一系列二维图像重建为三维图像。三维（3D）重建提供“纵向”和“容积”图像。前者类似于血管造影，可以通过围绕其纵轴旋转图像在三维空间中进行检查，在血管内手术过程中提供临床有用信息。容积视图创建时间较长且不是精确重建，但它提供的图像可以旋转到任何空间位置。它能很好地显示血管的管腔情况。三维IVUS的临床价值在于血管疾病的诊断和血管内介入治疗的评估。三维IVUS比二维IVUS提供更好、信息更丰富的图像，在手术过程中检测血管内支架和腔内移植物的不准确放置时可能特别有用。
