A portable system for identifying urinary tract infection in primary care using a PC-based chromatic technique

Deakin, A. G., Jones, G. R., Spencer, J. W., Bongard, Emily ORCID: https://orcid.org/0000-0001-5957-6280, Gal, Micaela ORCID: https://orcid.org/0000-0002-1326-190X, Sufian, A. T. and Butler, Christopher Collett ORCID: https://orcid.org/0000-0002-0102-3453 2014. A portable system for identifying urinary tract infection in primary care using a PC-based chromatic technique. Physiological Measurement 35 (5) , pp. 793-805. 10.1088/0967-3334/35/5/793

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Abstract

An approach is described for monitoring urine samples using a portable system based on chromatic techniques and for predicting urinary tract infection (UTI) from the results. The system uses a webcam–computer combination with the screen of a computer visual display unit as a tuneable illumination source. It is shown that the system can operate in a robust manner under ambient lighting conditions and with potential for use as a point of care test in primary care. The present approach combines information on urine liquid concentration and turbidity. Its performance in an exploratory study is compared with microbiological culture of 200 urine samples, of which 79 had bacterial growth >105 colony forming unit/millilitre (cfu ml−1) indicative of UTI. It is shown that both sensitivity and negative predictive value of 0.92 could be achieved.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General)
Publisher:	IOP Publishing
ISSN:	0967-3334
Date of Acceptance:	10 March 2014
Last Modified:	01 Nov 2022 10:48
URI:	https://orca.cardiff.ac.uk/id/eprint/92915

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