Spiral CT: Current status and future directions

被引：7
|
作者：
Wang, G
Cheng, PC
Vannier, MW
机构：
来源：
DEVELOPMENTS IN X-RAY TOMOGRAPHY | 1997年 / 3149卷
关键词：
X-ray computed tomography (CT); X-ray micro-CT; spiral/helical scanning; fan-beam; cone-beam; iterative reconstruction;
D O I：
10.1117/12.279358
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In X-ray computed tomography (CT) spiral/helical scanning is achieved by continuous and simultaneous source rotation, object translation and data acquisition. In medical imaging, fan-beam spiral CT has replaced conventional incremental CT. Also, cone-beam spiral CT is feasible and advantageous in important applications. In this paper, resolution characteristics, protocol optimization, and image restoration ate discussed in fan-beam spiral CT. Then, generalized Feldkamp cone-beam reconstruction is described in spiral geometry. Based on Snyder's iterative deblurring theory, a unified iterative algorithm is reported to handle incomplete cone-beam data. Finally, several future possibilities in spiral CT are mentioned.
引用
收藏
页码：203 / 212
页数：10
相关论文
共 50 条
  • [1] CT of pulmonary emphysema: current status, challenges, and future directions
    Hochhegger, Bruno
    EUROPEAN RADIOLOGY, 2009, 19 (07) : 1696 - 1696
  • [2] PET-CT in the UK: current status and future directions
    Scarsbrook, A. F.
    Barrington, S. F.
    CLINICAL RADIOLOGY, 2016, 71 (07) : 673 - 690
  • [3] CT of pulmonary emphysema - current status, challenges, and future directions
    Litmanovich, Diana
    Boiselle, Phillip M.
    Bankier, Alexander A.
    EUROPEAN RADIOLOGY, 2009, 19 (03) : 537 - 551
  • [4] CT of pulmonary emphysema - current status, challenges, and future directions
    Diana Litmanovich
    Phillip M. Boiselle
    Alexander A. Bankier
    European Radiology, 2009, 19 : 537 - 551
  • [5] CT of pulmonary emphysema: current status, challenges, and future directions
    Bruno Hochhegger
    European Radiology, 2009, 19 : 1696 - 1696
  • [6] CT myocardial perfusion imaging: current status and future directions
    Williams, M. C.
    Newby, D. E.
    CLINICAL RADIOLOGY, 2016, 71 (08) : 739 - 749
  • [7] CURRENT STATUS - FUTURE DIRECTIONS
    MATTHEWS, JL
    CALCIFIED TISSUE RESEARCH, 1978, : 425 - 429
  • [8] CT of pulmonary emphysema: Current status, challenges, and future directions Reply
    Litmanovich, Diana
    Boiselle, Phillip M.
    Bankier, Alexander A.
    EUROPEAN RADIOLOGY, 2009, 19 (07) : 1697 - 1697
  • [9] Reply to: CT of pulmonary emphysema: Current status, challenges, and future directions
    Diana Litmanovich
    Phillip M. Boiselle
    Alexander A. Bankier
    European Radiology, 2009, 19 : 1697 - 1697
  • [10] Bevacizumab - current status and future directions
    Midgley, R
    Kerr, D
    ANNALS OF ONCOLOGY, 2005, 16 (07) : 999 - 1004
12345