Effect of spatial-domain pulse width on the resolution of scattering images in ultrasound computed tomography.
image reconstruction
medical imaging
reflection imaging
spatial resolution
ultrasound computed tomography
ultrasound device
Journal
Physics in medicine and biology
ISSN: 1361-6560
Titre abrégé: Phys Med Biol
Pays: England
ID NLM: 0401220
Informations de publication
Date de publication:
14 08 2023
14 08 2023
Historique:
received:
23
02
2023
accepted:
25
07
2023
medline:
15
8
2023
pubmed:
27
7
2023
entrez:
26
7
2023
Statut:
epublish
Résumé
Full-aperture tomography (FAT) is the major image reconstruction method for a circular ring array (CRA)-based ultrasound computed tomography (USCT) system. The FAT technique requires transferring the reconstruction process from the temporal domain to the spatial domain, during which the imaging resolution of the USCT is degraded by the spatial-domain pulse width (SDPW) of backprojection areas. To tackle this challenge, this study investigates the characteristics of the SDPW and how it degrades the image resolution. We show that the SDPW depends on the frequency of the ultrasound and the position of the transmitting elements, receiving elements and the imaging point. To quantify the deterioration of image resolution associated with the position of the transmitting and receiving elements, a SDPW broadening factor (SDPW
Identifiants
pubmed: 37494939
doi: 10.1088/1361-6560/aceace
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2023 Institute of Physics and Engineering in Medicine.