THE EFFECT OF DIFFERENT JUBAH DRESS’ MATERIALS ON IMAGE QUALITY USING COMPUTED RADIOGRAPHY (CR) ON KNEE X-RAY

A BOVINE STUDY

Abstract

Introduction: In medical imaging practice, the act of removing any clothes from the
region of interest is justified as to prevent the presence of artefacts on radiographs.
However, by doing so, the ‘aurah’ of the patients, especially for the Muslims, are not
observed and can be considered as violating their privacy if they are not wellinformed beforehand. Previous studies have proved that radiographs with the
presence of some fabric materials on the region of interest are radiographically
acceptable. Therefore, the aims of this study are to tackle the issue of exposing one’s
‘aurah’ for a knee x-ray examination to take place and also to add insufficiency from
the previous studies. Methods: The effect of three different jubah dress’ materials;
heavy dull satin, high quality lycra and moss crepe on radiographic image quality for
both anteroposterior (AP) and lateral knee x-ray examinations are evaluated. The
effect on radiographic image quality by the manipulation of tube potentials on each
jubah dress’ materials are also evaluated. A bovine’s knee is used to simulate human’s
knee as opposed to previous studies which only utilized KYOTOKAGAKU phantom.
Four experienced observers blindly graded image quality using Visual Grading
Analysis (VGA). Results: This study shows that all three of the jubah dress’ materials
produce no artefacts on images and at the same time, present no significant effect on
radiographic image quality. The manipulation of tube potentials on each jubah dress’
materials also equally gives the same result. However, some increment to tube
potentials is recommended to improve image quality. Conclusions: It can be
concluded that a knee x-ray examination can be done without the need to remove
either heavy dull satin, high quality lycra or moss crepe.