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Journal of Hand Surgery (British and European Volume)
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Articles

MRI Susceptibility Artefacts Related to Scaphoid Screws: the Effect of Screw Type, Screw Orientation and Imaging Parameters

M. GANAPATHI
G. JOSEPH
R. SAVAGE
A. R. JONES
B. TIMMS
K. LYONS

From the Royal Gwent Hospital, Newport, Gwent, UK and University Hospital of Wales, Heath Park, Cardiff, UK

Correspondence: Mr M Ganapathi, FRCS, Specialist Registrar in Orthopaedics, Ysbydy, Gwynedd, Bangor Gwnedd LL57 2PW, UK. E-mail: muthuganapathi{at}hotmail.com

Metal implants produce susceptibility artefacts in magnetic resonance imaging. We have explored the effects of scaphoid screw characteristics and orientation on MR susceptibility artefact. Titanium alloy, smallness and longitudinal alignment with the z-axis of the main magnetic field reduce the size of the susceptibility artefact.

Journal of Hand Surgery (British and European Volume), Vol. 27, No. 2, 165-170 (2002)
DOI: 10.1054/JHSB.2001.0717
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[Abstract] [Full Text] [PDF]