Large-area pyroelectric-based differential detector for medical Ultrasound Computed Tomography

B Zeqiri, C Baker, A Pounder, D Sarno… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
Ultrasound computed tomography (UCT) shows significant promise for imaging the internal
structures of soft-tissue organs such as the breast, in particular, the distribution of the …

Ultrasound tomography using pyroelectric and piezoelectric sensors

JAS Kaupinmäki - 2023 - discovery.ucl.ac.uk
Acoustic absorption is one of several quantities which can differentiate healthy breast tissue
from cancerous tissue. In order to accurately quantify the acoustic absorption, the sensor …

Quantitative ultrasonic computed tomography using phase-insensitive pyroelectric detectors

B Zeqiri, C Baker, G Alosa, PNT Wells… - Physics in Medicine & …, 2013 - iopscience.iop.org
The principle of using ultrasonic computed tomography (UCT) clinically for mapping tissue
acoustic properties was suggested almost 40 years ago. Despite strong research activity …

Systematic evaluation of a secondary method for measuring diagnostic-level medical ultrasound transducer output power based on a large-area pyroelectric sensor

B Zeqiri, G Žauhar, S Rajagopal, A Pounder - Metrologia, 2012 - iopscience.iop.org
A systematic study of the application of a novel pyroelectric technique to the measurement of
diagnostic-level medical ultrasound output power is described. The method exploits the …

In vivo measurements of the bulk ultrasonic attenuation coefficient of breast tissue using a novel phase-insensitive receiver

D Sarno, C Baker, S Curtis, M Hodnett… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This study describes the first in vivo acoustic attenuation measurements of breast tissue
undertaken using a novel phase-insensitive detection technique employing a differential …

Progress in developing a thermal method for measuring the output power of medical ultrasound transducers that exploits the pyroelectric effect

B Zeqiri, G Žauhar, M Hodnett, J Barrie - Ultrasonics, 2011 - Elsevier
Progress in developing a new measurement method for ultrasound output power is
described. It is a thermal-based technique with the acoustic power generated by a …

[HTML][HTML] Ultrawideband sub-pascal sensitivity piezopolymer detectors

A Kurnikov, A Sanin, XLD Ben, D Razansky… - Ultrasonics, 2024 - Elsevier
Piezoelectric detectors are integral part of modern ultrasound imaging systems. Their utility
has also been extended beyond the established methodologies into the emerging realm of …

Pulse pileup correction of signals from a pyroelectric sensor for phase-insensitive ultrasound computed tomography

C Baker, D Sarno, RJ Eckersley… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper describes the application of a pulse pileup correction algorithm based on
maximum likelihood estimation to simulated and experimentally acquired signals from a …

Ultrahigh-sensitivity wideband Fabry-Perot ultrasound sensors as an alternative to piezoelectric PVDF transducers for biomedical photoacoustic detection

EZY Zhang, PC Beard - Photons Plus Ultrasound: Imaging and …, 2004 - spiedigitallibrary.org
A high sensitivity, wideband ultrasound sensor based on a high finesse Fabry-Perot (FP)
polymer film interferometer has been demonstrated with a bandwidth of 20 MHz and a 50μm …

Pyroelectric ultrasound sensor model: directional response

S Kaupinmäki, B Cox, S Arridge, C Baker… - Measurement …, 2020 - iopscience.iop.org
Ultrasound is typically measured using phase-sensitive piezoelectric sensors. Interest in
phase-insensitive sensors has grown recently, with proposed applications including …