一种采用新型边缘检测器评估内膜中层厚度的实时测量系统。
Real-time measurement system for the evaluation of the intima media thickness with a new edge detector.
作者信息
Faita Francesco, Gemignani Vincenzo, Bianchini Elisabetta, Giannarelli Chiara, Demi Marcello
机构信息
Institute of Clinical Physiology, National Research Council, Pisa, Italy.
出版信息
Conf Proc IEEE Eng Med Biol Soc. 2006;2006:715-8. doi: 10.1109/IEMBS.2006.260450.
The evaluation of the intima media thickness (IMT) of the common carotid artery (CCA) with B-mode ultrasonography represents an important index of cardiovascular risk. The IMT is defined as the distance between the leading edge of the lumen-intima interface and the leading edge of the media-adventitia interface. In order to evaluate the IMT, it is necessary to locate such edges. In this paper we developed an automatic real-time system to evaluate the IMT based on the first order absolute moment (FOAM), which is used as an edge detector, and on a pattern recognition approach. The IMT measurements were compared with manual measurements. We used regression analysis and Bland-Altman analysis to compare the results.
用B型超声评估颈总动脉（CCA）的内膜中层厚度（IMT）是心血管风险的一项重要指标。IMT定义为管腔-内膜界面前缘与中膜-外膜界面前缘之间的距离。为了评估IMT，有必要确定这些边缘。在本文中，我们基于用作边缘检测器的一阶绝对矩（FOAM）和模式识别方法，开发了一种自动实时系统来评估IMT。将IMT测量结果与手动测量结果进行比较。我们使用回归分析和布兰德-奥特曼分析来比较结果。
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