Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1975
Title: An ultrasound indentation system for biomechanical properties assessment of soft tissues in-vivo
Authors: Zheng, Yong-Ping
Mak, Arthur F. T.
Subjects: Biomechanics
Biomedical equipment
Biomedical ultrasonics
Ultrasonic equipment
Ultrasonic transducers
Issue Date: Sep-1996
Publisher: IEEE Engineering in Medicine and Biology Society
Source: IEEE transactions on biomedical engineering, Sept. 1996, v. 43, no. 9, p. 912-918.
Abstract: An ultrasound indentation system for biomechanical assessment of soft tissues in vivo was developed. The pen-size, hand-held probe was composed of an ultrasound transducer and a load cell. The ultrasound transducer was at the tip of the probe serving also as the indentor. The thickness and deformation of the soft tissue layer were determined from the ultrasound echo. A compressive load cell was connected in series with the ultrasound transducer to record the force response. A validation experiment was performed on porcine tissues. Force and deformation acquired with the present system was in good comparison with those obtained from a Housfield material testing machine. Material constants were obtained via a curve-fitting procedure by predicting the force transient response from the deformation-time data using a quasilinear viscoelastic model. In addition, deformation in the fat and in the muscle could be differentiated. The potential applications of this type of indentation probes are many. The specific application of this current development is for stump tissue assessment in the design of prosthetics.
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Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/1975
DOI: 10.1109/10.532125
ISSN: 0018-9294
Appears in Collections:HTI Journal/Magazine Articles

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