Precision analysis of single-element ultrasound sensor for kinematic analysis of knee joints

Mohammed Masum, Mark R. Pickering, Andrew Lambert, Jennie SCARVELL, P Smith

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Measuring the relative motion of the femur and tibia in a knee joint currently requires tantalum beads to be implanted into the bones. These beads appear as high-intensity features in radiographs and can be used for precise kinematic measurements. This procedure imposes a strong coupling between accuracy and invasiveness. Advances in ultrasound (US) sensor technology and the availability of micro-drives mean that it is now possible to construct a small and lightweight US sensor which can be placed on the skin above the tibia and femur. Such a sensor could determine the relative movement of the underlying bone with respect to the sensor. This would then allow the position of the femur and tibia to be measured more accurately than with an optical tracking system that does not take into account the movement of the marker with respect to the bone. For satisfactory performance, the precision of the US sensor should be in the order of 1 mm or less. The experimental results prove that this sub-millimetre precision is achievable. © 2014 The Institution of Engineering and Technology.
Original languageEnglish
Pages (from-to)1047-1048
Number of pages2
JournalElectronics Letters
Volume50
Issue number15
DOIs
Publication statusPublished - 2014

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Kinematics
Ultrasonics
Sensors
Bone
Tantalum
Skin
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Cite this

Masum, Mohammed ; Pickering, Mark R. ; Lambert, Andrew ; SCARVELL, Jennie ; Smith, P. / Precision analysis of single-element ultrasound sensor for kinematic analysis of knee joints. In: Electronics Letters. 2014 ; Vol. 50, No. 15. pp. 1047-1048.
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Precision analysis of single-element ultrasound sensor for kinematic analysis of knee joints. / Masum, Mohammed; Pickering, Mark R.; Lambert, Andrew; SCARVELL, Jennie; Smith, P.

In: Electronics Letters, Vol. 50, No. 15, 2014, p. 1047-1048.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Precision analysis of single-element ultrasound sensor for kinematic analysis of knee joints

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AU - Pickering, Mark R.

AU - Lambert, Andrew

AU - SCARVELL, Jennie

AU - Smith, P

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KW - Relative motion

KW - Relative movement

KW - Sensor technologies

KW - Ultrasound sensors

KW - Engineering main heading: Bone

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