• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on physiology and function from multidimensional images >Adaptive phase-coded reconstruction for cardiac CT
【24h】

Adaptive phase-coded reconstruction for cardiac CT

机译：心脏CT的自适应相位编码重建

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cardiac imaging with conventional computed tomography (CT) has gained significant attention in recent years. New hardware development enables a CT scanner to rotate at a faster speed so that less cardiac motion is present in acquired projection data. Many new tomographic reconstruction techniques have also been developed to reduce the artifacts induced by the cardiac motion. Most of the algorithms make use of the projection data collected over several cardiac cycles to formulate a single projection data set. Because the data set is formed with samples collected roughly in the same phase of a cardiac cycle, the temporal resolution of the newly formed data set is significantly improved compared with projections collected continuously. In this paper, we present an adaptive phase- coded reconstruction scheme (APR) for cardiac CT. Unlike the previously proposed schemes where the projection sector size is identical, APR determines each sector size based on the tomographic reconstruction algorithm. The newly proposed scheme ensures that the temporal resolution of each sector is substantially equal. In addition, the scan speed is selected based on the measured EKG signal of the patient.
机译：近年来，具有传统计算机断层扫描（CT）的心脏成像已经显着关注。新的硬件开发使CT扫描仪能够以更快的速度旋转，以便获取的投影数据中存在较少的心动运动。还开发了许多新的断层重建技术以减少心动诱导的伪影。大多数算法利用在几个心脏周期上收集的投影数据来制定单个投影数据集。因为数据集形成有大致在心周期的相同相中收集的样本，所以与连续收集的突起相比，新形成的数据集的时间分辨率显着提高。在本文中，我们提出了一种用于心脏CT的自适应相位编码的重建方案（APR）。与预先提出的投影扇区大小相同的方案不同，APR基于断层切断重建算法确定每个扇区大小。新提出的方案确保每个扇区的时间分辨率基本相等。另外，基于患者的测量的EKG信号选择扫描速度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号