The accuracy of length and angle measurement in videoconferencing teleradiology.

Abstract:

:Telemedicine was used to make measurements on a series of radiographs. The first group consisted of 25 radiographs of the cervical spine; four lengths were measured on each. The second group consisted of 100 wrist radiographs showing Colles fractures; the degree of backward angulation of the distal fragment was measured on each. Measurements were made via a videoconferencing link. The consultant used the shared white boarding facility to indicate where on the film the measurements were to be made. The videoconferencing link was used to check that the measurements were being made correctly and a nurse measured lengths and angles. In addition, the consultant used the link to read the scales on the measuring instruments for himself. Four different methods of measuring length were tested and three methods of measuring angle. A transparent plastic ruler was best for measuring length-the emergency nurse practitioner and the consultant made almost all measurements to an accuracy of 1 mm. A protractor with pen marker was best for measuring angles; all were made to within 2 degrees. Simple methods can be used to measure lengths and angles in videoconferencing teleradiology.

journal_name

J Telemed Telecare

authors

Tachakra S,Doherty S

doi

10.1177/1357633X020080S239

subject

Has Abstract

pub_date

2002-01-01 00:00:00

pages

85-7

eissn

1357-633X

issn

1758-1109

journal_volume

8 Suppl 2

pub_type

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