alexa Usefulness of 1H magnetic resonance spectroscopy in human testes: preliminary study.
Reproductive Medicine

Reproductive Medicine

Reproductive System & Sexual Disorders: Current Research

Author(s): BaleatoGonzlez S, GarcaFigueiras R, SantiagoPrez MI, RequejoIsidro I, Vilanova JC

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Abstract AIM: To identify and quantify the metabolites detected on proton magnetic resonance spectroscopy ((1)H-MRS) in human testes. MATERIALS AND METHODS: The institutional review board approved the study, and all patients provided informed consent. A total of 27 patients consulting the Urology Department underwent single-voxel (1)H-MRS (4000 ms repetition time [RT], 31 ms echo time [TE], 128 averages for each TE) at 1.5 T. Spectroscopy was not evaluable in one patient, and four patients had only one testis; thus, 48 testes were studied. Choline-containing compounds (Cho) and methylene lipid (Lip) values were measured and the Cho/Lip ratio was calculated. Testes were classified as normal or abnormal based on conventional magnetic resonance imaging (MRI) findings. The Mann-Whitney U-test was used for correlated data and bootstrapping to compare mean Cho/Lip ratios between normal and abnormal testes, and the area under the receiver operating characteristic curve (AUC) was calculated. RESULTS: Thirty testes were classified as normal and 18 as abnormal. The mean Cho/Lip ratio was 1.02±0.46 in normal testes and 0.45±0.36 in abnormal testes (Mann-Whitney U, p=0.001; bootstrapping mean difference, 0.57; 95\% confidence interval (CI) 0.32-0.82; AUC=0.833). CONCLUSION: (1)H-MRS could be useful in routine clinical practice to identify the major metabolites in the testes and help discriminate between normal and abnormal testes. Copyright © 2015 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved. This article was published in Clin Radiol and referenced in Reproductive System & Sexual Disorders: Current Research

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