| 江林华,柴振明,王裕庆.X线血管造影图像序列的同步获取问题研究[J].中国医学影像技术,1999,15(9):734~736 |
| X线血管造影图像序列的同步获取问题研究 |
| The Research of Synchronization Acquisition of X ray Angiography Sequence |
| 投稿时间：1999-06-21 |
| DOI： |
| 中文关键词: 曝光 图像采集 同步初相位 同步频率 |
| 英文关键词:Exposure Image grabbing Synchronization phase frequency |
| 基金项目: |
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| 摘要点击次数: 1458 |
| 全文下载次数: 696 |
| 中文摘要: |
| 目的 血管造影图像序列的采集。方法 先详细描述了影响同步的两个重要因素,然后论述了在PC机环境下,利用自行开发的控制卡与图像采集卡及辅助软件相结合实现X 线机曝光与图像序列采集之间的同步方案,并具体给出了方案实现的详细过程。结果 以脑血管为例,获得了一致均匀良好的造影图像序列。结论 目前决定国产DSA系统质量的关键问题之一就是减影前造影图像序列的稳定采集,利用本文提出的简单巧妙的采集同步方案最终获得了良好的造影图像序列,证明了本方案是完全可行的。 |
| 英文摘要: |
| Purpose Well grabbing of angiographic images sequence.Methods First, the key two factors of infiuencing the synchronization was described. Second, under the PC environment, with the combination of hardware and software, this paper proposed a project for the synchronization between X ray exposure and image grabbing based on control card and grab card developed by ourselves. At last, the detailed implement procedure of synchronization was illustrated.Results taking the cerebral angiographic images as an example, the excellent images sequence was acquired. Conclusion At present, one of important problems influencing the quality of DSA system made in China is the stable grabbing of angiographic images before subtraction, the excellent images sequence was acquired finally by use of this simple project present in this paper, it proved that this project is completely feasible. |
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