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Issue 19, 2015
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Comparison of GC-MS, HPLC-MS and SIFT-MS in conjunction with multivariate classification for the diagnosis of Crohn's disease in urine

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Abstract

The developed world has seen an alarming increase in the incidence of gastrointestinal diseases, among the most common of which is Crohn's disease (CD) in the young. The current “gold standard” techniques for diagnosis are often costly, time consuming, inefficient, invasive, and offer poor sensitivities and specificities. This paper compares the performances of three hyphenated instrumental techniques that have been suggested as rapid methods for the non-invasive diagnosis of CD from urine. These techniques are gas chromatography-mass spectrometry (GC-MS), high performance liquid chromatography-mass spectrometry (HPLC-MS) and selected ion flow tube mass spectrometry (SIFT-MS). Each of these techniques is followed by multivariate classification to provide a diagnosis based on the acquired data. The most promising results for potentially diagnosing CD was via HPLC-MS. An overall classification accuracy of 73% (74% specificity; 73% sensitivity) was achieved for differentiating CD from healthy controls, statistically significant at 95% confidence.

Graphical abstract: Comparison of GC-MS, HPLC-MS and SIFT-MS in conjunction with multivariate classification for the diagnosis of Crohn's disease in urine

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Supplementary files

Article information


Submitted
21 May 2015
Accepted
30 Aug 2015
First published
01 Sep 2015

This article is Open Access

Anal. Methods, 2015,7, 8379-8385
Article type
Paper
Author version available

Comparison of GC-MS, HPLC-MS and SIFT-MS in conjunction with multivariate classification for the diagnosis of Crohn's disease in urine

M. Cauchi, D. P. Fowler, C. Walton, C. Turner, R. H. Waring, D. B. Ramsden, J. O. Hunter, P. Teale, J. A. Cole and C. Bessant, Anal. Methods, 2015, 7, 8379
DOI: 10.1039/C5AY01322D

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