Ultrasonic attenuation in parallel-nylon-wire cancellous-bone-mimicking phantoms.
Attenuation coefficients between 1.5 and 3.5 MHz were measured on four parallel-nylon-wire arrays (simulating cancellous bone) with four different wire diameters (150, 200, 250, and 300 microm). Interwire spacing was 800 microm for all four parallel-nylon-wire arrays. The measured frequency dependencies of attenuation were consistent with theoretical predications based on Faran's theory, which considers the component of attenuation due to scattering of longitudinal waves.
Wear
Keith A
KA
US Food and Drug Administration, Silver Spring, Maryland 20993, USA. keith.wear@fda.hhs.gov
D001842:Bone and Bones / Q000000981:diagnostic imaging*; D006801:Humans; D008962:Models, Theoretical; D009757:Nylons; D019047:Phantoms, Imaging; D014463:Ultrasonography / Q000295:instrumentation*
D009757:Nylons