Cross-imaging system comparison of backscatter coefficient estimates from a tissue-mimicking material.
J Acoust Soc Am
; 132(3): 1319-24, 2012 Sep.
Article
em En
| MEDLINE
| ID: mdl-22978860
ABSTRACT
A key step toward implementing quantitative ultrasound techniques in a clinical setting is demonstrating that parameters such as the ultrasonic backscatter coefficient (BSC) can be accurately estimated independent of the clinical imaging system used. In previous studies, agreement in BSC estimates for well characterized phantoms was demonstrated across different laboratory systems. The goal of this study was to compare the BSC estimates of a tissue mimicking sample measured using four clinical scanners, each providing RF echo data in the 1-15 MHz frequency range. The sample was previously described and characterized with single-element transducer systems. Using a reference phantom for analysis, excellent quantitative agreement was observed across the four array-based imaging systems for BSC estimates. Additionally, the estimates from data acquired with the clinical systems agreed with theoretical predictions and with estimates from laboratory measurements using single-element transducers.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ultrassom
/
Ultrassonografia
/
Imagens de Fantasmas
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article