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Phased-array ultrasound technology enhances accuracy of dual frequency ultrasound measurements - towards improved
Hans Linder1,2, Markus K H Malo1, Jukka Liukkonen1
1a Department of Applied Physics , University of Eastern Finland , Kuopio , Finland ;
Abstract:
Overlying soft tissues attenuate ultrasound backscattered from bone, complicating diagnostics of osteoporosis at the most important fracture sites. Dual-frequency ultrasound technique (DFUS) has been proposed to solve this problem through determination of thickness and composition of overlying soft tissue. This study applies DFUS technique for the first time with a phased-array transducer to investigate if the thickness of two interfering layers (oil and water) can be accurately determined in a variety of configurations. Results indicate that DFUS may be used with phased-array ultrasound systems, making them a suitable combination to consider in future development of clinical in vivo ultrasound methodologies.
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