3D full-waveform inversion in ultrasound computed tomography employing a ring-array

Fu Li, Umberto Villa, Nebojsa Duric, Mark A. Anastasio

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Ultrasound computed tomography (USCT) is an emerging medical imaging modality that holds great promise for breast cancer diagnosis. Full-waveform inversion (FWI)-based image reconstruction methods for USCT can produce high spatial resolution and accurate images of the acoustic properties of soft tissues. A common USCT design employs a circular ring-array comprised of elevation-focused ultrasonic transducers. Volumetric imaging can be achieved by translating the ring-array orthogonally to the imaging plane. Slice-by-slice two-dimensional (2D) reconstruction methods have been implemented to form a composite three-dimensional (3D) volumes by stacking together reconstructed cross-sectional images at each ring-array position. However, this 2D approach does not account for the 3D wave propagation physics and the focusing properties of the transducers, and can result in out-of-plane scattering-based artifacts and inaccuracies. To overcome this, a new 3D time-domain FWI method is proposed for ring-array-based USCT that concurrently utilizes measurement data acquired from multiple positions of the ring-array. A virtual imaging study of ring-array-based USCT that employs a realistic 3D numerical breast phantom was conducted to assess the impact of the number of ring-array measurements on image quality.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2023
Subtitle of host publicationUltrasonic Imaging and Tomography
EditorsChristian Boehm, Nick Bottenus
ISBN (Electronic)9781510660458
StatePublished - 2023
Externally publishedYes
EventMedical Imaging 2023: Ultrasonic Imaging and Tomography - San Diego, United States
Duration: Feb 22 2023Feb 23 2023

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceMedical Imaging 2023: Ultrasonic Imaging and Tomography
Country/TerritoryUnited States
CitySan Diego


  • Three-dimensional imaging
  • Ultrasound computed tomography (USCT)
  • breast imaging
  • full-waveform inversion
  • ring-array USCT systems

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging


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