TY - JOUR
T1 - Differential in vivo urodynamic measurement in a single thin catheter based on two optical fiber pressure sensors
AU - Poeggel, Sven
AU - Duraibabu, Dineshbabu
AU - Tosi, Daniele
AU - Leen, Gabriel
AU - Lewis, Elfed
AU - McGrath, Deirdre
AU - Fusco, Ferdinando
AU - Sannino, Simone
AU - Lupoli, Laura
AU - Ippolito, Juliet
AU - Mirone, Vincenzo
N1 - Publisher Copyright:
© Society of Photo-Optical Instrumentation Engineers.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - Urodynamic analysis is the predominant method for evaluating dysfunctions in the lower urinary tract. The exam measures the pressure during the filling and voiding process of the bladder and is mainly interested in the contraction of the bladder muscles. The data arising out of these pressure measurements enables the urologist to arrive at a precise diagnosis and prescribe an adequate treatment. A technique based on two optical fiber pressure and temperature sensors with a resolution of better than 0.1 cmH2O (~10 Pa), a stability better than 1 cmH2O/hour, and a diameter of 0.2 mm in a miniature catheter with a diameter of only 5 Fr (1.67 mm), was used. This technique was tested in vivo on four patients with a real-time urodynamic measurement system. The optical system presented showed a very good correlation to two commercially available medical reference sensors. Furthermore, the optical urodynamic system demonstrated a higher dynamic and better sensitivity to detect small obstructions than both pre-existing medical systems currently in use in the urodynamic field.
AB - Urodynamic analysis is the predominant method for evaluating dysfunctions in the lower urinary tract. The exam measures the pressure during the filling and voiding process of the bladder and is mainly interested in the contraction of the bladder muscles. The data arising out of these pressure measurements enables the urologist to arrive at a precise diagnosis and prescribe an adequate treatment. A technique based on two optical fiber pressure and temperature sensors with a resolution of better than 0.1 cmH2O (~10 Pa), a stability better than 1 cmH2O/hour, and a diameter of 0.2 mm in a miniature catheter with a diameter of only 5 Fr (1.67 mm), was used. This technique was tested in vivo on four patients with a real-time urodynamic measurement system. The optical system presented showed a very good correlation to two commercially available medical reference sensors. Furthermore, the optical urodynamic system demonstrated a higher dynamic and better sensitivity to detect small obstructions than both pre-existing medical systems currently in use in the urodynamic field.
KW - Fabry-Perot interferometer
KW - catheter
KW - differential
KW - fiber Bragg grating.
KW - in vivo
KW - optical fiber pressure sensors
KW - pressure
KW - urodynamic
UR - http://www.scopus.com/inward/record.url?scp=84924777936&partnerID=8YFLogxK
U2 - 10.1117/1.JBO.20.3.037005
DO - 10.1117/1.JBO.20.3.037005
M3 - Article
C2 - 25756307
AN - SCOPUS:84924777936
SN - 1083-3668
VL - 20
JO - Journal of Biomedical Optics
JF - Journal of Biomedical Optics
IS - 3
M1 - 037005
ER -