Roelandt J R, di Mario C, Pandian N G, Wenguang L, Keane D, Slager C J, de Feyter P J, Serruys P W
Thoraxcenter, Division of Cardiology, University Hospital Rotterdam-Dijkzigt, The Netherlands.
Circulation. 1994 Aug;90(2):1044-55. doi: 10.1161/01.cir.90.2.1044.
Although intracoronary ultrasonography allows detailed tomographic imaging of the arterial wall, it fails to provide data on the structural architecture and longitudinal extent of arterial disease. This information is essential for decision making during therapeutic interventions. Three-dimensional reconstruction techniques offer visualization of the complex longitudinal architecture of atherosclerotic plaques in composite display. Progress in computer hardware and software technology have shortened the reconstruction process and reduced operator interaction considerably, generating three-dimensional images with delineation of mural anatomy and pathology. The indications for intravascular ultrasonography will grow as the technique offers the unique capability of providing ultrasonic histology of the arterial wall, and the need for a three-dimensional display format for comprehensive analysis is increasingly recognized. Consequently, three-dimensional imaging is being rapidly implemented in the catheterization laboratories for guidance of intracoronary interventions and detailed assessment of their results. However exciting the prospects may be, three-dimensional reconstructions at present remain partially artificial because the true spatial position of the imaging catheter tip is not recorded, and shifts in its location and curves of the arterial lumen result in pseudoreconstructions rather than true reconstructions. In this report, we address the principles of three-dimensional reconstruction with a critical review of its limitations. Potential solutions for refinement of this exciting imaging modality are presented.
尽管冠状动脉内超声检查能够对动脉壁进行详细的断层成像，但它无法提供有关动脉疾病的结构架构和纵向范围的数据。这些信息对于治疗干预期间的决策至关重要。三维重建技术能够以复合显示的方式呈现动脉粥样硬化斑块复杂的纵向架构。计算机硬件和软件技术的进步缩短了重建过程，并大幅减少了操作人员的交互，生成了能够清晰显示壁层解剖结构和病理情况的三维图像。随着血管内超声检查技术具备提供动脉壁超声组织学的独特能力，其应用指征将会增加，并且人们越来越认识到需要采用三维显示格式进行全面分析。因此，三维成像正在快速应用于导管室，以指导冠状动脉内干预并详细评估其结果。尽管前景可能令人兴奋，但目前的三维重建仍存在部分人为因素，因为成像导管尖端的真实空间位置未被记录，其位置的移动和动脉腔的弯曲会导致伪重建而非真实重建。在本报告中，我们阐述了三维重建的原理，并对其局限性进行了批判性综述。同时还提出了改进这种令人兴奋的成像方式的潜在解决方案。
