• Key Magazine of China Technology（CSTPCD）
ISSN 1004-4140
CN 11-3017/P
Volume 11 Issue 4
Dec.  2002
Turn off MathJax
Article Contents
Abstract
Related Articles
CHEN Wei-chang, CHEN Zhi-hua, ZHAO Tian-de, WANG Zi-qiang. Improvement of CT Contrast (Density) Resolution By Dual Photons Absorption Method[J]. CT Theory and Applications, 2002, 11(4): 5-8.
Citation: CHEN Wei-chang, CHEN Zhi-hua, ZHAO Tian-de, WANG Zi-qiang. Improvement of CT Contrast (Density) Resolution By Dual Photons Absorption Method[J]. CT Theory and Applications, 2002, 11(4): 5-8.
shu

Improvement of CT Contrast (Density) Resolution By Dual Photons Absorption Method

  • China Japan Friendship Institute of Medical Sciences, Beijing 100029

More Information
  • Received Date: September 14, 2002
  • Available Online: December 16, 2022
    Abstract
  • Purpose Improvement of CT contrast resolution since 1973, medical CT has gained great progress to improve its spatial and temporal resolutions. Recently, the spatial resolution of the fifth generation of medical CT of high resolution has reached 0.35mm. The temporal resolution of the high speed electronic beam CT has reached 20ms per frame. But the improvement of the CT contrast (density) resolution is not significant. Since the CT contrast (density) resolution is closely correlated with the gray grade of CT image and is very important to the distinction of CT images, so it is necessary to investigate how to improve the contrast resolution of the CT images. Method and Conclusion The principle and mechanism of the dual photons absorption method to improve the CT contrast (density) resolution were suggested and analyzed. The feasibility of this method in practical application was also discussed.
    • FullText(HTML)
    • References (0)
    • Related Articles

  • Related Articles

    [1]WANG Lingyun, SHI Bowen, LI Jiqiang, DONG Haipeng, LV Xiaoyu, PAN Zhaocheng. Application of Ultra-high-resolution Scanning in Abdominal Artery CTA Using Photon-counting CT[J]. CT Theory and Applications, 2025, 34(3): 469-475. DOI: 10.15953/j.ctta.2024.266
    [2]CAO Jiasheng, LI Baolei. Analysis of Accuracy Related Factors in Photon Counting X-ray CT Energy Imaging[J]. CT Theory and Applications, 2025, 34(2): 255-262. DOI: 10.15953/j.ctta.2024.254
    [3]LI Siyu, LIANG Ningning, ZHENG Zhizhong, CAI Ailong, LI Lei, YAN Bin. Photon-Counting CT Projection Denoising Method Based on Optimal Transport Network[J]. CT Theory and Applications. DOI: 10.15953/j.ctta.2025.171
    [4]ZOU Qiang, HUANG Jianping, LIU Dingjin, WEI Wei, GUO Xu. Modeling of Acoustic Reflection Imaging Logging Based on Least-square Reverse Time Migration[J]. CT Theory and Applications, 2019, 28(1): 13-28. DOI: 10.15953/j.1004-4140.2019.28.01.02
    [5]MO Jing-qing, DU Qiang, LI Ying-rui, WU Sen, SUN Ming-shan. The Advantages of Ce Filtration in the Measurement of Bone Mineral Density Using Photon Counting X-ray Detector[J]. CT Theory and Applications, 2018, 27(5): 573-582. DOI: 10.15953/j.1004-4140.2018.27.05.03
    [6]LI Zhong-hao, YUAN Ming-kai, JIANG Xiao-pan, ZHANG Zhi-dou, CHENG Zhi-wei, WEI Cun-feng, SHI Rong-jian, WEI Long, WANG Zhe. Energy Calibration Method of the Photon Counting Detector Based on Continuous X-ray Spectrum[J]. CT Theory and Applications, 2018, 27(3): 363-372. DOI: 10.15953/j.1004-4140.2018.27.03.09
    [7]XU Pin, CHEN Shi, YUAN Gang, ZHANG Yin, ZHENG Jian, XING Xiao-man, SUN Ming-shan. Study of Spectral CT Based on a Photon Counting Detector[J]. CT Theory and Applications, 2015, 24(6): 819-825. DOI: 10.15953/j.1004-4140.2015.24.06.07
    [8]ZHANG Jun-sheng, WANG Ming-quan, GUO Yong-liang, CHEN Zhi-qiang. Analysis of X-ray Digital Imaging System Resolution[J]. CT Theory and Applications, 2011, 20(2): 227-234.
    [9]DAN Guo, GE Yi-lin, CHEN Si-ping, TAO Du-chun. Design of a High-Speed Multi-Channel Data Acquisition System with PGA of the Medical CT[J]. CT Theory and Applications, 2005, 14(1): 37-41.
    [10]WANG Xue-li. Research and Discussion for CT Image Quality Evaluation[J]. CT Theory and Applications, 2003, 12(3): 46-52.

Catalog

    WANG Zi-qiang

    • China Japan Friendship Institute of Medical Sciences, Beijing 100029

    1. On this Site
    2. On Google Scholar
    3. On PubMed
    Get Citation
    PDF
    XML
    Article views (1337) PDF downloads (7) Cited by()
    Related

    Website Copyright © Editorial Office of Computerized Tomography Theory and Applications

    Address：No.5 Minzudaxue Nanlu,Haidian District,Beijing 100081,P.R.China（100081）

    E-mail：cttacn@cea-igp.ac.cn

    Phone：010-68729234

    京ICP备08002722号-11

    震球期刊
    CT理论与应用研究-中英文
    E-mail
    RSS

    Supported by: Beijing Renhe Information Technology Co. Ltd     Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return