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Complementary-Aperture Pulse Sequencing for Fundamental-Band Nonlinearity Parameter Imaging — arXiv:2609.23155

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.23155
License (as archived): CC0-1.0
Archived: 2026-10-10T00:58:03.924Z
SHA-256 of the archived text: 9b28669a95850bb35be333f356888115274ae8af6e9a477e7663f810fab5d4c1
Stable URL of this page: https://metraipolis.com/documento/dc_960a235ead0c

How to cite

Complementary-Aperture Pulse Sequencing for Fundamental-Band Nonlinearity Parameter Imaging — arXiv:2609.23155 — arXiv (en), https://arxiv.org/abs/2609.23155 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_960a235ead0c (Metraipolis archive dc_960a235ead0c, sha256 9b28669a95850bb35be333f356888115274ae8af6e9a477e7663f810fab5d4c1)

BibTeX

@misc{dc960a235ead0c,
  title = {Complementary-Aperture Pulse Sequencing for Fundamental-Band Nonlinearity Parameter Imaging — arXiv:2609.23155},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.23155},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_960a235ead0c; sha256 9b28669a95850bb35be333f356888115274ae8af6e9a477e7663f810fab5d4c1},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.23155. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The depletion method (DM) enables the estimation of the acoustic nonlinearity parameter, B/A, in pulse-echo ultrasound using fundamental-band signals from low- and high-pressure acquisitions, but requires accurate knowledge of the acoustic-pressure scaling factor. This requirement limits experimental translation because of the slightly nonlinear scaling between excitation voltage set on the ultrasound system and pressure at the probe. We propose a complementary-aperture pulse sequence (CAPS) that recovers the linearly scaled low-pressure signal by coherently summing RF acquisitions from interleaved transmit subapertures whereas a full-aperture transmission provides the high-pressure signal maintaining the same excitation voltage configured in the ultrasound system. In silico phantoms of a homogeneous sample and a reference evaluated four aperture partitions of CAPS and compared them with the DM under relative scaling-factor errors from 0.01% to 10%. Using the DM, errors of 0.1% and 1% produced absolute B/A biases of up to 27.3% and 58.3%, respectively. CAPS yielded mean B/A values of 8.9 for a prescribed value of 9, with biases of less than 1.3% across all partitions, matching an ideally calibrated DM. These results demonstrate that CAPS preserves depletion-based B/A estimation without using the pressure scaling factor as a reconstruction input, supporting experimental and in vivo implementation without pressure-ratio calibration.

Tema degli esploratori: statistica e scienza dei dati (retro-catalogo arXiv: annunci del 2026-09-22 in eess.SP).
Categorie arXiv: Signal Processing (eess.SP) ; Medical Physics (physics.med-ph).
Pagina del lavoro: https://arxiv.org/abs/2609.23155 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-09T23:57:50.940Z dalla pagina https://arxiv.org/catchup/eess.SP/2026-09-22?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).