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Harmonic spatial coherence imaging: an ultrasonic imaging method based on backscatter coherence.

Publication ,  Journal Article
Dahl, J; Jakovljevic, M; Pinton, GF; Trahey, GE
Published in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
April 2012

We introduce a harmonic version of the short-lag spatial coherence (SLSC) imaging technique, called harmonic spatial coherence imaging (HSCI). The method is based on the coherence of the second-harmonic backscatter. Because the same signals that are used to construct harmonic B-mode images are also used to construct HSCI images, the benefits obtained with harmonic imaging are also obtained with HSCI. Harmonic imaging has been the primary tool for suppressing clutter in diagnostic ultrasound imaging, however secondharmonic echoes are not necessarily immune to the effects of clutter. HSCI and SLSC imaging are less sensitive to clutter because clutter has low spatial coherence. HSCI shows favorable imaging characteristics such as improved contrast-to-noise ratio (CNR), improved speckle SNR, and better delineation of borders and other structures compared with fundamental and harmonic B-mode imaging. CNRs of up to 1.9 were obtained from in vivo imaging of human cardiac tissue with HSCI, compared with 0.6, 0.9, and 1.5 in fundamental B-mode, harmonic B-mode, and SLSC imaging, respectively. In vivo experiments in human liver tissue demonstrated SNRs of up to 3.4 for HSCI compared with 1.9 for harmonic B-mode. Nonlinear simulations of a heart chamber model were consistent with the in vivo experiments.

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Published In

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

DOI

EISSN

1525-8955

ISSN

0885-3010

Publication Date

April 2012

Volume

59

Issue

4

Start / End Page

648 / 659

Related Subject Headings

  • Ultrasonography
  • Signal-To-Noise Ratio
  • Scattering, Radiation
  • Nonlinear Dynamics
  • Models, Cardiovascular
  • Middle Aged
  • Male
  • Liver
  • Image Processing, Computer-Assisted
  • Humans
 

Citation

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Dahl, J., Jakovljevic, M., Pinton, G. F., & Trahey, G. E. (2012). Harmonic spatial coherence imaging: an ultrasonic imaging method based on backscatter coherence. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 59(4), 648–659. https://doi.org/10.1109/tuffc.2012.2243
Dahl, Jeremy, Marko Jakovljevic, Gianmarco F. Pinton, and Gregg E. Trahey. “Harmonic spatial coherence imaging: an ultrasonic imaging method based on backscatter coherence.IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 59, no. 4 (April 2012): 648–59. https://doi.org/10.1109/tuffc.2012.2243.
Dahl J, Jakovljevic M, Pinton GF, Trahey GE. Harmonic spatial coherence imaging: an ultrasonic imaging method based on backscatter coherence. IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2012 Apr;59(4):648–59.
Dahl, Jeremy, et al. “Harmonic spatial coherence imaging: an ultrasonic imaging method based on backscatter coherence.IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 59, no. 4, Apr. 2012, pp. 648–59. Epmc, doi:10.1109/tuffc.2012.2243.
Dahl J, Jakovljevic M, Pinton GF, Trahey GE. Harmonic spatial coherence imaging: an ultrasonic imaging method based on backscatter coherence. IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2012 Apr;59(4):648–659.

Published In

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

DOI

EISSN

1525-8955

ISSN

0885-3010

Publication Date

April 2012

Volume

59

Issue

4

Start / End Page

648 / 659

Related Subject Headings

  • Ultrasonography
  • Signal-To-Noise Ratio
  • Scattering, Radiation
  • Nonlinear Dynamics
  • Models, Cardiovascular
  • Middle Aged
  • Male
  • Liver
  • Image Processing, Computer-Assisted
  • Humans