TY - JOUR
T1 - New applications of fiberoptic IR spectroscopy in urologic practice
AU - Cytron, Shmuel
AU - Kravchick, Sergey
AU - Sela, Ben Ami
AU - Shulzinger, Evgeny
AU - Vasserman, Irena
AU - Raichlin, Yosef
AU - Katzir, Abraham
PY - 2002
Y1 - 2002
N2 - The objective of this work was to use infrared (IR) fiberoptic spectroscopy for the analysis of urinary salts. Urine samples were obtained (with no sample preparation) from two groups of patients: 24 stone forming patients, after shock wave lithotripsy, and 24 normal subjects of similar ages. IR absorption measurements were performed in real time, using Fiberoptic Evanescent Wave Spectroscopy system, based on IR transmitting silver halide fibers. The absorption data were compared with the IR spectra of aqueous solutions with known concentrations of known urinary salts. The results were then used for the study of the chemical composition of salts in urine samples and for a quantitative analysis of the concentration of these salts. We established the composition of the stones in 20 of the 24 stone forming patients, based on the characteristic absorption peaks for oxalates, carbonates, urates and phosphates observed in their urinary samples. We also determined the concentrations of these salts in the urine samples with average error of 20%.
AB - The objective of this work was to use infrared (IR) fiberoptic spectroscopy for the analysis of urinary salts. Urine samples were obtained (with no sample preparation) from two groups of patients: 24 stone forming patients, after shock wave lithotripsy, and 24 normal subjects of similar ages. IR absorption measurements were performed in real time, using Fiberoptic Evanescent Wave Spectroscopy system, based on IR transmitting silver halide fibers. The absorption data were compared with the IR spectra of aqueous solutions with known concentrations of known urinary salts. The results were then used for the study of the chemical composition of salts in urine samples and for a quantitative analysis of the concentration of these salts. We established the composition of the stones in 20 of the 24 stone forming patients, based on the characteristic absorption peaks for oxalates, carbonates, urates and phosphates observed in their urinary samples. We also determined the concentrations of these salts in the urine samples with average error of 20%.
KW - Infrared fibers
KW - Infrared spectroscopy
KW - Urinary salts
KW - Urinary stones
KW - Urine
UR - http://www.scopus.com/inward/record.url?scp=0036400176&partnerID=8YFLogxK
U2 - 10.1117/12.460781
DO - 10.1117/12.460781
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.conferencearticle???
AN - SCOPUS:0036400176
SN - 0277-786X
VL - 4614
SP - 55
EP - 62
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
T2 - Biomedical Vibrational Spectroscopy II
Y2 - 19 January 2002 through 20 January 2002
ER -