摘要
开发一种基于图像处理的无创性食管内曲张静脉压测量系统。采用基于PCI总线的图像采集、USB接口的压强采集、边缘检测、动态跟踪等方法。结果表明:模拟食管曲张静脉测压值重复性好,与实际压力值间均呈良好相关性。临床试验中该系统测得的压力值与传统方法测量值有较好的相关性。由此证明本系统能准确地测量食管曲张静脉压,具有良好的临床应用价值。
To develop a non - invasive system for manometry of esophageal varices based on image processing, The methods of image - acquisition based on pci bus, pressure data - acquisiton based on USB interface, edge detection, dynamic tracking and so on were applied. Resuits showed that the experiments proved that the measured pressure had high stability and ideal correlation with the actual pressure in the artificial varices. The clinical measurement also showed ideal correlation between the pressure measurement by this system and the traditional methods. The system can measure the esophageal variceal pressure accurately.
出处
《生物医学工程研究》
2007年第1期24-28,共5页
Journal Of Biomedical Engineering Research
