Journal of Medical Systems

, 40:184 | Cite as

A New Method for Computed Tomography Angiography (CTA) Imaging via Wavelet Decomposition-Dependented Edge Matching Interpolation

  • Zeyu Li
  • Yimin Chen
  • Yan Zhao
  • Lifeng Zhu
  • Shengqing Lv
  • Jiahui Lu
Education & Training
Part of the following topical collections:
  1. Education & Training


The interpolation technique of computed tomography angiography (CTA) image provides the ability for 3D reconstruction, as well as reduces the detect cost and the amount of radiation. However, most of the image interpolation algorithms cannot take the automation and accuracy into account. This study provides a new edge matching interpolation algorithm based on wavelet decomposition of CTA. It includes mark, scale and calculation (MSC). Combining the real clinical image data, this study mainly introduces how to search for proportional factor and use the root mean square operator to find a mean value. Furthermore, we re- synthesize the high frequency and low frequency parts of the processed image by wavelet inverse operation, and get the final interpolation image. MSC can make up for the shortage of the conventional Computed Tomography (CT) and Magnetic Resonance Imaging(MRI) examination. The radiation absorption and the time to check through the proposed synthesized image were significantly reduced. In clinical application, it can help doctor to find hidden lesions in time. Simultaneously, the patients get less economic burden as well as less radiation exposure absorbed.


Wavelet transform Edge detection Matching point interpolation Root mean square 



This work was also supported by Research on the interative oversized screen modern film display technique (n.13-a303-15-w23). This work was also supported by Integration Demonstration of key digital medical technologies (No.2012AA02A612). National High Technology Research and Development Program (863 program).


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Zeyu Li
    • 1
    • 2
  • Yimin Chen
    • 1
  • Yan Zhao
    • 2
  • Lifeng Zhu
    • 2
  • Shengqing Lv
    • 1
  • Jiahui Lu
    • 1
  1. 1.School of Computer Engineering and ScienceShanghai UniversityShanghaiChina
  2. 2.Computer Center Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina

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