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An Ultrasound Technique for the Measurement of Tardive Dyskinesia

Published online by Cambridge University Press:  29 January 2018

George Resek ,
John Haines  and
Peter Sainsbury
George Resek
Affiliation:
MRC Clinical Psychiatry Unit, Graylingwell Hospital, Chichester, West Sussex, PO19 4PQ, U.K.
John Haines
Affiliation:
MRC Clinical Psychiatry Unit, Graylingwell Hospital, Chichester, West Sussex, PO19 4PQ, U.K.
Peter Sainsbury
Affiliation:
MRC Clinical Psychiatry Unit, Graylingwell Hospital, Chichester, West Sussex, PO19 4PQ, U.K.
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Summary

A simple and portable ultrasound system, using a transducer attached to a pair of spectacles, to measure disorders of facial movement is described and applied to the measurement of tardive dyskinesia. Product-moment coefficients of correlation for the split-half and test-retest assessments of reliability in 20 patients were 0.96 and 0.93 respectively. Concurrent validity was confirmed by assessing the consistency between ultrasound scores and time-sampled scores based on video films (Pearson r = 0.86). Serial measurements of tardive dyskinesia over five months revealed striking individual consistency.

Type
Research Article
Information
The British Journal of Psychiatry , Volume 138 , Issue 6 , June 1981 , pp. 474 - 478
Copyright
Copyright © Royal College of Psychiatrists, 1981 

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