Research Papers: Sensing

Differential in vivo urodynamic measurement in a single thin catheter based on two optical fiber pressure sensors

[+] Author Affiliations
Sven Poeggel, Dineshbabu Duraibabu, Gabriel Leen, Elfed Lewis

University of Limerick, Department of Electronic and Computer Engineering, Optical Fibre Sensors Research Centre, Main-building C2-051, Limerick 00000, Ireland

Daniele Tosi

University of Limerick, Department of Electronic and Computer Engineering, Optical Fibre Sensors Research Centre, Main-building C2-051, Limerick 00000, Ireland

Nazarbayev University, School of Engineering, Electrical & Electronic Engineering, 53 Kabanbay Batyr, Astana 010000, Kazakhstan

Deirdre McGrath

University of Limerick, Graduate Entry Medical School, Faculty of Education & Health Sciences, Limerick 00000, Ireland

Ferdinando Fusco, Simone Sannino, Laura Lupoli, Juliet Ippolito, Vincenzo Mirone

Federico II University of Naples, Scuola di Medicina e Chirurgia, Urologic Clinic, Naples 80121, Italy

J. Biomed. Opt. 20(3), 037005 (Mar 10, 2015). doi:10.1117/1.JBO.20.3.037005
History: Received December 9, 2014; Accepted February 16, 2015
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Abstract.  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 0.1cmH2O (10Pa), a stability better than 1cmH2O/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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Sven Poeggel ; Dineshbabu Duraibabu ; Daniele Tosi ; Gabriel Leen ; Elfed Lewis, et al.
"Differential in vivo urodynamic measurement in a single thin catheter based on two optical fiber pressure sensors", J. Biomed. Opt. 20(3), 037005 (Mar 10, 2015). ; http://dx.doi.org/10.1117/1.JBO.20.3.037005


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