School of Information Science and Engineering, Shandong University, Jinan, 250100, People's Republic of China.
J Med Syst. 2011 Apr;35(2):163-7. doi: 10.1007/s10916-009-9353-y. Epub 2009 Jul 29.
The real-time myocardial contrast echocardiography (RT MCE) is a new echocardiography technology, which allows clinicians to noninvasively evaluate the perfusion of myocardial capillary of patients, using the quantitative analysis of RT MCE. But the accurate analysis requires tracking the position of region of interest (ROI) within the myocardial area, so as to compensate for the translation or rotation offsets, which are due to such uncontrollable factors as heart motion. We used diamond search method and Brox's coarse-to-fine warping optical flow technique for this ROI tracking problem. We validated our methods by comparing the quantitative analysis results of RT MCE using our methods with those using Lucas & Kanade's optical flow technique, which had been report to be accurate enough for this ROI tracking. We finally present some examples of animal experiment to show the effectiveness and the clinical application value of our ROI tracking methods.
实时心肌声学造影（RT MCE）是一种新的超声心动图技术，它允许临床医生使用 RT MCE 的定量分析，无创地评估患者心肌毛细血管的灌注情况。但是，准确的分析需要跟踪心肌区域内感兴趣区域（ROI）的位置，以补偿由于心脏运动等不可控因素引起的平移或旋转偏移。我们使用钻石搜索方法和 Brox 的粗到精变形光流技术来解决这个 ROI 跟踪问题。我们通过将使用我们的方法和已被报道足以用于这个 ROI 跟踪的 Lucas & Kanade 的光流技术进行比较，对我们的方法进行了验证，定量分析了 RT MCE 的结果。最后，我们展示了一些动物实验的例子，以显示我们的 ROI 跟踪方法的有效性和临床应用价值。
