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Tobias Erlöv, MSc, PhD. Photo.

Tobias Erlöv

Researcher

Tobias Erlöv, MSc, PhD. Photo.

Scaled reassigned spectrograms applied to linear transducer signals

Author

  • Josefin Starkhammar
  • Isabella Reinhold
  • Tobias Erlöv
  • Maria Sandsten

Summary, in English

This study evaluates the applicability of scaled reassigned spectrograms (ReSTS) on ultrasound radio frequency data obtained with a clinical linear array ultrasound transducer. The ReSTS's ability to resolve axially closely spaced objects in a phantom is compared to the classical cross-correlation method with respect to the ability to resolve closely spaced objects as individual reflectors using ultrasound pulses with different lengths. The results show that the axial resolution achieved with the ReSTS was superior to the cross-correlation method when the reflected pulses from two objects overlap. A novel B-mode imaging method, facilitating higher image resolution for distinct reflectors, is proposed.

Department/s

  • Department of Biomedical Engineering
  • eSSENCE: The e-Science Collaboration
  • Statistical Signal Processing Group
  • Mathematical Statistics

Publishing year

2021-04-24

Language

English

Publication/Series

JASA Express Letters

Volume

1

Issue

5

Document type

Journal article

Publisher

Acoustical Society of America

Topic

  • Biomedical Laboratory Science/Technology

Status

Published

Research group

  • Statistical Signal Processing Group

ISBN/ISSN/Other

  • ISSN: 2691-1191