skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Tomographic density imaging using modified DF–DBIM approach

Biomedical engineering letters, 2019-11, Vol.9 (4), p.449-465

Korean Society of Medical and Biological Engineering 2019 ;Copyright Springer Nature B.V. 2019 ;ISSN: 2093-9868 ;EISSN: 2093-985X ;DOI: 10.1007/s13534-019-00129-5 ;PMID: 31799014

Full text available

Citations Cited by
  • Title:
    Tomographic density imaging using modified DF–DBIM approach
  • Author: Huy, Tran Quang ; Cuc, Nguyen Thi ; Nguyen, Van Dung ; Long, Ton That ; Tan, Tran Duc
  • Subjects: Biological and Medical Physics ; Biomedical Engineering and Bioengineering ; Biomedicine ; Biophysics ; Computed tomography ; Computer applications ; Computer simulation ; Density ; Empirical analysis ; Engineering ; Frequency dependence ; Image contrast ; Image processing ; Image quality ; Image reconstruction ; Iterative methods ; Medical and Radiation Physics ; Original ; Original Article ; Parameters ; Sound ; Spatial resolution ; Target detection ; Target recognition ; Tissues ; Tomography ; Transducers ; Transmitters ; Ultrasonic imaging ; Ultrasound
  • Is Part Of: Biomedical engineering letters, 2019-11, Vol.9 (4), p.449-465
  • Description: Ultrasonic computed tomography based on back scattering theory is the most powerful and accurate tool in ultrasound based imaging approaches because it is capable of providing quantitative information about the imaged target and detects very small targets. The duple-frequency distorted Born iterative method (DF–DBIM), which uses density information along with sound contrast for imaging, is a promising approach for imaging targets at the level of biological tissues. With two frequencies f 1 (low) and f 2 (high) through N f 1 and N f 2 iterations respectively, this method is used to estimate target density along with sound contrast. The implications of duple-frequency fusion for the image reconstruction quality of density information along with sound contrast based ultrasound tomography have been analyzed in this paper. In this paper, we concentrate on the selection of parameters that is supposed to be the best to improve the reconstruction quality of ultrasound tomography. When there are restraints imposed on simulated scenarios to have control of the computational cost, the iteration number N f 1 is determined resulting in giving the best performance. The DF–DBIM is only effective if there are a moderate number of iterations, transmitters and receivers. In case that the number of transducers is either too large or too small, a result of reconstruction which is better than that of the single frequency approach is not produced by the implementation of DF–DBIM. A fixed sum N iter of N f 1 and N f 2 was given, the investigation of simulation results shows that the best value of N f 1 is N iter 2 - 1 . The error, when applying this way of choosing the parameters, will be normalized with the reduction of 56.11%, compared to use single frequency as used in the conventional DBIM method. The target density along with sound contrast is used to image targets in this paper. It is a fact that low-frequency offers fine convergence, and high-frequency offers fine spatial resolution. Wherefore, this technique can effectively expand DBIM’s applicability to the problem of biological tissue reconstruction. Thanks to the usage of empirical data, this work will be further developed prior to its application in reality.
  • Publisher: Korea: The Korean Society of Medical and Biological Engineering
  • Language: English
  • Identifier: ISSN: 2093-9868
    EISSN: 2093-985X
    DOI: 10.1007/s13534-019-00129-5
    PMID: 31799014
  • Source: PubMed Central
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait