Prediction of survival for patients with advanced colorectal cancer using 1H High‐resolution magic angle spinning nuclear MR spectroscopy. Issue 6 (22nd August 2014)

• Record Type: Journal Article
• Authors: Pacholczyk‐Sienicka, Barbara; Fabiańska, Anna; Pasz‐Walczak, Grażyna; Kordek, Radzisław; Jankowski, Stefan
• Is Part Of: Journal of magnetic resonance imaging. Volume 41:Issue 6(2015)
• Page Start: 1669
• Page End: 1674
• Publication Date: 2014-08-22
• Subjects: Magnetic resonance imaging -- Periodicals; 616
• DOI: 10.1002/jmri.24734
• Languages: English
• ISSNs: 1053-1807

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="jmri24734-sec-0001" sec-type="section"> <title>Purpose</title> <p>To evaluate whether the metabolic profiles of colorectal cancer specimens can be used for prediction of survival.</p> </sec> <sec id="jmri24734-sec-0002" sec-type="section"> <title>Materials and Methods</title> <p>The metabolic profiles of colorectal cancer tissues were determined using the high‐resolution magic angle spinning (HR MAS) nuclear magnetic resonance (NMR) technique (16.4 T). HR MAS analysis was performed for 52 tissues taken from patients classified as survivors <xref ref-type="link" rid="jmri24734-bib-0022">22</xref> and nonsurvivors (30). Quantitative analysis was performed for each spectrum. Receiver operating characteristic (ROC) curves were used to evaluate the potential to predict patient survival over 5.5 years.</p> </sec> <sec id="jmri24734-sec-0003" sec-type="section"> <title>Results</title> <p>Analysis of <sup>1</sup>H NMR spectra led to the identification and quantitative analysis of 30 metabolites. A significant increase in the Tau/Gly and Tau/MI ratios were associated with long‐term survival (<italic>P</italic> = 0.004 and <italic>P</italic> = 0.003, respectively). ROC analysis indicated that the Tau/MI ratio had the best predictive value for survival (sensitivity 64.7% and specificity 100%). Good predictive value of survival was found for Tau/Gly ratio (sensitivity 63.6% and specificity 96.3%). Moreover, the Glu/Gln metabolic ratio with a cutoff level of 1.74 was predictive of survival with a sensitivity of 83.3% and a specificity of 85.7%.</p> </sec> <sec id="jmri24734-sec-0004" sec-type="section"> <title>Conclusion</title> <p>Our results indicate that HR MAS spectroscopy is potentially useful for survival prediction in advanced colorectal cancer. <bold>J. Magn. Reson. Imaging 2015;41:1669–1674</bold>. © <bold>2014 Wiley Periodicals, Inc</bold>.</p> </sec> </abstract>