| CT心脏扫描直接三维重建算法研究 |
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| 引用本文： | 霍修坤.CT心脏扫描直接三维重建算法研究[J].中国医疗器械杂志,2006,30(2):90-93. |
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| 作者姓名： | 霍修坤 |
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| 作者单位： | 安徽大学计算智能与信号处理教育部重点实验室,安徽,合肥,230039 |
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| 摘 要： | 随着锥形束CT的出现．投影数据的采集速度明显加快．再加上重建算法的不断改进．心脏的CT成像质量必将得到改善。提出了一种双锥束的扫描结构，它改进了FDK算法．并设计了使用该结构实现心脏图像直接三维重建的方法．从而改善了心脏的CT成像质量。
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| 关 键 词： | 锥束扫描 直接三维 体积重建 反投影 |
| 文章编号： | 1671-7104(2006)02-0090-04 |
| 修稿时间： | 2006年2月15日 |
A Research on Direct 3-D Reconstruction Algorithm Used in Cardiac CT Scanning |
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| HUO Xiu-kun.A Research on Direct 3-D Reconstruction Algorithm Used in Cardiac CT Scanning[J].Chinese Journal of Medical Instrumentation,2006,30(2):90-93. |
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| Authors: | HUO Xiu-kun |
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| Institution: | School of Electronic Science and Technology, Anhui University, Hefei 230039. ttgems@263.net |
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| Abstract: | The data-sampling speed of cone-beam CT is faster than that of fan-beam CT, so the cardiac image will be more and more perfect in cone-beam CT with the improvement of the reconstruction algorithm. A new scanning framework of double cone-beam .which has improved FDK algorithm is presented, and a method of 3-D cardiac image reconstruction based on the new scanning framework is designed resulting in a better cardiac image quality. |
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| Keywords: | cone-beam scan direct 3-D volume reconstruction back-projection |
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