Validation of 3-D freehand ultrasound for the determination of the hip joint centre

Peters, Alana; Baker, Richard; Sangeux, Morgan

doi:10.1016/j.gaitpost.2010.01.014

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Volume 31, Issue 4 , Pages 530-532, April 2010

Validation of 3-D freehand ultrasound for the determination of the hip joint centre

Alana Peters
- Gait CCRE, Murdoch Children's Research Institute, Hugh Williamson Gait Laboratory, Level 3, Main Building, Royal Children's Hospital, Flemington Rd, Parkville, Victoria 3052, Australia
- School of Physiotherapy, The University of Melbourne, 202 Berkely St, Melbourne, Victoria 3010, Australia
- Corresponding author at: Gait CCRE, Murdoch Children's Research Institute, Hugh Williamson Gait Laboratory, Level 3, Main Building, Royal Children's Hospital, Flemington Rd, Parkville, Victoria 3052, Australia. Tel.: +61 3 9345 6794.
Richard Baker
- Gait CCRE, Murdoch Children's Research Institute, Hugh Williamson Gait Laboratory, Level 3, Main Building, Royal Children's Hospital, Flemington Rd, Parkville, Victoria 3052, Australia
- School of Physiotherapy, The University of Melbourne, 202 Berkely St, Melbourne, Victoria 3010, Australia
Morgan Sangeux
- Gait CCRE, Murdoch Children's Research Institute, Hugh Williamson Gait Laboratory, Level 3, Main Building, Royal Children's Hospital, Flemington Rd, Parkville, Victoria 3052, Australia

Received 28 August 2009; received in revised form 15 January 2010; accepted 19 January 2010. published online 19 February 2010.

Abstract

This paper describes the calibration process for 3-D free hand ultrasound (3-DUS). The Cambridge calibration technique was determined to produce the most repeatable and accurate results when determining the location of a reference object within a water bath. This note additionally validates 3-DUS as a potential measurement tool for the determination of the hip joint centre. It shows that 3-DUS can accurately determine the inter-HJC distance to within 4±2mm. This indicates potential for 3-DUS to be used as a gold standard measurement tool in the identification of the hip joint centre.