A multi-transducer approach for human carotid plaque imaging

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

3 Downloads (Pure)

Samenvatting

A common approach in photoacoustic imaging (PAI) is to use a linear or curved piezoelectric transducer array, which provides flexibility and versatility during image acquisition. However, these PAI systems often have limited field-of-view (FOV), resolution, and contrast, resulting in low quality images. In this study, a multi-transducer approach is proposed to improve FOV, resolution, and contrast, with the goal of facilitating human carotid plaque imaging. A prototype consisting of multiple capacitive micromachined ultrasonic transducers (CMUTs) on a flexible array with shared channels was developed and evaluated using simulated and ex-vivo human carotid plaque samples. In numerical simulations, the results are evaluated based on input ground truth parameters. For ex-vivo plaque samples, results for multi-transducer are evaluated and compared to the images acquired with single transducer. All the results demonstrate that the proposed approach improves contrast, FOV, and most notably, it allows resolving the structural information in the medium where more than 25% improvement in gCNR values is achieved in both simulations and experiments compared to the PA images obtained with single transducer.

Originele taal-2Engels
TitelOpto-Acoustic Methods and Applications in Biophotonics VI
RedacteurenChulhong Kim, Jan Laufer, Vasilis Ntziachristos, Roger J. Zemp
UitgeverijSPIE
Aantal pagina's5
ISBN van elektronische versie9781510664715
ISBN van geprinte versie9781510664722
DOI's
StatusGepubliceerd - 11 aug. 2023
EvenementOpto-Acoustic Methods and Applications in Biophotonics VI 2023 - Munich, Duitsland
Duur: 25 jun. 202326 jun. 2023

Publicatie series

NaamProceedings of SPIE
Volume12631
ISSN van geprinte versie0277-786X
ISSN van elektronische versie1996-756X

Congres

CongresOpto-Acoustic Methods and Applications in Biophotonics VI 2023
Land/RegioDuitsland
StadMunich
Periode25/06/2326/06/23

Bibliografische nota

Publisher Copyright:
© 2023 SPIE.

Vingerafdruk

Duik in de onderzoeksthema's van 'A multi-transducer approach for human carotid plaque imaging'. Samen vormen ze een unieke vingerafdruk.

Citeer dit