ISSN 1004-4140
CN 11-3017/P
Jiang Hsieh, John Londt, Melissa Vass, Xiangyang Tang, Jay Li, Darin Okerlund. 低剂量CT心脏成像[J]. CT理论与应用研究, 2007, 16(2): 52-59,65.
引用本文: Jiang Hsieh, John Londt, Melissa Vass, Xiangyang Tang, Jay Li, Darin Okerlund. 低剂量CT心脏成像[J]. CT理论与应用研究, 2007, 16(2): 52-59,65.
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Jiang Hsieh, John Londt, Melissa Vass, Xiangyang Tang, Jay Li, Darin Okerlund. Low-dose CT Cardiac Imaging[J]. CT Theory and Applications, 2007, 16(2): 52-59,65.
Citation: Jiang Hsieh, John Londt, Melissa Vass, Xiangyang Tang, Jay Li, Darin Okerlund. Low-dose CT Cardiac Imaging[J]. CT Theory and Applications, 2007, 16(2): 52-59,65.
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低剂量CT心脏成像

  • 通用电气医疗部 美国威斯康星州密尔沃基 53201

详细信息
    作者简介:

    Jiang Hsieh(1956-), male, got Ph. D. degree in Electrical and Computer Engineering Department, Illinois Institute of Technology, 1989. As a Adjunct Professor, Department of Medical Physics, University of Wisconsin at Madison, in 2004-present; as Chief Scientist, Manager, Applied Science Laboratory-CT, GE Healthcare Technologies, Milwaukee, Wisconsin. He published 140-papers and articles in international periodicals and important symposiums, 5 special books, and the authorization in the United States patents more than 120 pieces. E-mail: jiang.hsieh@med.ge.com

  • 中图分类号: R322.1;R814.42

Low-dose CT Cardiac Imaging

  • GE Healthcare, Milwaukee, WI 53201, USA

摘要

    摘要
  • 摘要: 采用CT进行心脏成像是CT临床应用中最前沿的进展,心脏扫描中采用较低的螺距使得病人的辐照剂量较高,我们提出一种不同的数据采集和图像重建技术,使病人的辐照剂量减少了50%～89%。该方法的使能技术是64排CT的大容积覆盖范围（40mm）,相对于心脏的平均尺寸是120～140mm,新的容积CT在3～4步就能够覆盖整个器官。伴随新的数据采集方式,我们也提出了对应的重建算法,克服了不完全投影采样的问题,还进行了广泛的模体和临床实验来阐明所提出方法的有效性。
    Abstract: Cardiac imaging with computed tomography （CT） is one of the most recent advancements in CT clinical applications.Because of the low helical pitch employed in the cardiac acquisition protocols,radiation dose to patient is high.In this paper,we present a different data acquisition and image reconstruction technique that reduces dose to patient by 50%～89%.The key enabler for such technique is the large volume coverage （40 mm） of the 64-slice scanner.Compared to an average heart size of 120 mm to 140 mm the new VCT scanner is capable of covering the entire organ in 3 to 4 steps. In conjunction with the new acquisition,we present a complimentary reconstruction algorithm that overcomes incomplete projection samples.We conducted extensive phantom and clinical experiments to demonstrate the efficacy of the proposed approach.
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出版历程
  • 收稿日期:  2007-06-11
  • 网络出版日期:  2022-12-16

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