Research Papers: Sensing

Combined studies of chemical composition of urine sediments and kidney stones by means of infrared microspectroscopy

[+] Author Affiliations
Sandra Tamošaitytė, Milda Pučetaitė, Valdas Šablinskas

Vilnius University, Department of General Physics and Spectroscopy, Sauletekio Avenue 9, LT-10222 Vilnius, Lithuania

Vaiva Hendrixson, Zita A. Kučinskienė, Valerija Jablonskienė

Vilnius University, Department of Physiology, Biochemistry, Microbiology and Laboratory Medicine, M. K. Ciurlionio Street 21, LT-03101 Vilnius, Lithuania

Arūnas Želvys, Feliksas Jankevičius

Vilnius University, Department of Physiology, Biochemistry, Microbiology and Laboratory Medicine, M. K. Ciurlionio Street 21, LT-03101 Vilnius, Lithuania

Vilnius University, Vilniaus University Hospital, Santariskių Klinikos, Santariskių Street 2, LT-08661 Vilnius, Lithuania

Ramūnas Tyla

Vilnius University, Vilniaus University Hospital, Santariskių Klinikos, Santariskių Street 2, LT-08661 Vilnius, Lithuania

J. Biomed. Opt. 18(2), 027011 (Feb 21, 2013). doi:10.1117/1.JBO.18.2.027011
History: Received November 9, 2012; Revised January 25, 2013; Accepted January 28, 2013
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Abstract.  Results of the structural analysis of urinary sediments by means of infrared spectral microscopy are presented. The results are in good agreement with the results of standard optical microscopy in the case of single-component and crystalline urinary sediments. It is found that for noncrystalline or multicomponent sediments, the suggested spectroscopic method is superior to optical microscopy. The chemical structure of sediments of any molecular origin can be elucidated by this spectroscopic method. The method is sensitive enough to identify solid particles of drugs present in urine. Sulfamethoxazole and traces of other medicines are revealed in this study among the other sediments. We also show that a rather good correlation exists between the type of urinary sediments and the renal stones removed from the same patient. Spectroscopic studies of urinary stones and corresponding sediments from 76 patients suffering from renal stone disease reveal that in 73% of cases such correlation exists. This finding is a strong argument for the use of infrared spectral microscopy to prevent kidney stone disease because stones can be found in an early stage of formation by using the nonintrusive spectroscopic investigation of urinary sediments. Some medical recommendations concerning the overdosing of certain pharmaceuticals can also be derived from the spectroscopic studies of urinary sediments.

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© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Sandra Tamošaitytė ; Vaiva Hendrixson ; Arūnas Želvys ; Ramūnas Tyla ; Zita A. Kučinskienė, et al.
"Combined studies of chemical composition of urine sediments and kidney stones by means of infrared microspectroscopy", J. Biomed. Opt. 18(2), 027011 (Feb 21, 2013). ; http://dx.doi.org/10.1117/1.JBO.18.2.027011


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