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Fontes-Pereira,A.; Matusin,D.P.; Rosa,P.; Schanaider,A.; von Krüger,M.A.; Pereira,W.C.A.. |
A simple experimental protocol applying a quantitative ultrasound (QUS) pulse-echo technique was used to measure the acoustic parameters of healthy femoral diaphyses of Wistar rats in vivo. Five quantitative parameters [apparent integrated backscatter (AIB), frequency slope of apparent backscatter (FSAB), time slope of apparent backscatter (TSAB), integrated reflection coefficient (IRC), and frequency slope of integrated reflection (FSIR)] were calculated using the echoes from cortical and trabecular bone in the femurs of 14 Wistar rats. Signal acquisition was performed three times in each rat, with the ultrasound signal acquired along the femur's central region from three positions 1 mm apart from each other. The parameters estimated for the three... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone; Tissue characterization; Quantitative ultrasound; Clinical research protocols; Animal model. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000500403 |
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