A computer system for the quantification of coronary artery stenoses-design of the human computer interface

[1989] Proceedings. Computers in Cardiology Pub Date : 1989-09-19 DOI:10.1109/CIC.1989.130506

P. Wankling, X. Escaned, R. Perry, A. Seth, J. Newell, M. Shiu

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Abstract

A low-cost, clinically usable system has been developed for the objective assessment of the severity of coronary artery stenoses from single-view angiograms. The system is based on a desktop computer with incorporated frame grabber. Images are captured by means of a video camera. Both diameter and densitometric cross-sectional area measurements can be made on a selected artery segment. Particular attention has been paid to the design of an appropriate man-machine interface, suitable for clinical use. Software tools have been developed for this purpose. They facilitate an iterative approach to program development and also provide for the needs of both the experienced and inexperienced user. The stenosis analysis system has been tested by using phantoms constructed in Perspex. These are designed to simulate arteries of various diameters and also an asymmetric stenosis. Results show good agreement with measurements for videodensitometry; however, diameter measurements are hampered by the unreliability of the edge detection algorithm, particularly when severe stenoses are encountered.<>

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冠状动脉狭窄定量计算机系统——人机界面设计

一种低成本，临床可用的系统已经开发出来，用于客观评估冠状动脉狭窄的严重程度，从单视图血管造影。该系统是基于一个集成了帧捕获器的台式计算机。图像是用摄像机捕捉的。直径测量和密度测量都可以在选定的动脉段上进行。特别注意的是设计一个合适的人机界面，适合临床使用。为此目的开发了软件工具。它们促进了程序开发的迭代方法，也为有经验和没有经验的用户提供了需求。用有机玻璃制成的模型对狭窄分析系统进行了测试。这些设计是为了模拟不同直径的动脉和不对称狭窄。结果与视频密度测量结果吻合较好;然而，由于边缘检测算法的不可靠性，直径测量受到阻碍，特别是在遇到严重狭窄的情况下。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[1989] Proceedings. Computers in Cardiology

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