| 门控心血池断层图像的Fourier分析 |
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| 引用本文： | 张居营,金永杰,何作祥.门控心血池断层图像的Fourier分析[J].清华大学学报(自然科学版),2003,43(12):1591-1593. |
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| 作者姓名： | 张居营 金永杰 何作祥 |
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| 作者单位： | 1. 清华大学工程物理系,北京,100084
2. 阜外医院核医学科,北京,100037 |
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| 基金项目： | 国家自然科学基金资助项目(39970216) |
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| 摘 要： | 针对目前缺乏对门控心血池图像进行室壁运动和心脏功能进行定量分析的方法,提出一种新的研究方法:对门控心血池投影数据进行三维重建,得到心周期中不同时相的断层图像组;然后针对每个断层对各个时相的图像进行时间域的Fourier分析,得出心血池的三维幅度图像和相位图像,从中提取有关病人室壁运动和心脏功能的各种定量信息。显示出来的二维形式的相位图像和幅度图像具有良好的质量和较低的噪声。这种方法可以用来对左心室的收缩性和同步性进行三维的定量评估。
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| 关 键 词： | 计算机断层扫描术 门控心血池 Fourier分析 |
| 文章编号： | 1000-0054(2003)12-1591-03 |
| 修稿时间： | 2003年3月18日 |
Fourier analysis on tomographic gated blood pool |
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| ZHANG Juying,JIN Yongjie,HE Zuoxiang.Fourier analysis on tomographic gated blood pool[J].Journal of Tsinghua University(Science and Technology),2003,43(12):1591-1593. |
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| Authors: | ZHANG Juying JIN Yongjie HE Zuoxiang |
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| Institution: | ZHANG Juying~1,JIN Yongjie~1,HE Zuoxiang~2 |
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| Abstract: | An accurate quantitative method has not yet been developed for the analysis of gated blood pool images. This paper describes a novel method for three-dimensional Fourier analysis of tomographic gated radionuclide cardiography using a series of data frames for each cardiac cycle. The three-dimensional tomographic images of each phase are reconstructed, then each slice of each phase is sorted from the image sets and analyzed by Fourier analysis. The results are combined to form three-dimensional amplitude and phase images of the tomographic gated blood pool. The amplitude and phase images can be displayed as high-quality, low noise images and can be used to analyze the wall motion and cardiac functions. The technique can be used for three-dimensional, quantitative assessment of left ventricular contraction and synchrony. |
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| Keywords: | single photon emission computed tomography gated blood pool Fourier analysis |
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