Research Papers: Sensing

In vivo measurement of the pressure signal in the intervertebral disc of an anesthetized sheep

[+] Author Affiliations
Paulo Roriz

University of Aveiro, Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, 3810-193 Aveiro, Portugal

INESC-Porto and Faculty of Sciences of the University of Porto, Rua do Campo Alegre, 687, 4150-179, Porto, Portugal

João M. C. Ferreira

INESC-Porto and Faculty of Sciences of the University of Porto, Rua do Campo Alegre, 687, 4150-179, Porto, Portugal

José C. Potes

Universidade de Évora, Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Veterinary Department, Núcleo de Mitra, Apartado 94, 7002-554 Évora

Maria T. Oliveira

Universidade de Évora, Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Veterinary Department, Núcleo de Mitra, Apartado 94, 7002-554 Évora

Orlando Frazão

INESC-Porto and Faculty of Sciences of the University of Porto, Rua do Campo Alegre, 687, 4150-179, Porto, Portugal

José Luís Santos

INESC-Porto and Faculty of Sciences of the University of Porto, Rua do Campo Alegre, 687, 4150-179, Porto, Portugal

José António de Oliveira Simões

University of Aveiro, Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, 3810-193 Aveiro, Portugal

J. Biomed. Opt. 19(3), 037006 (Mar 31, 2014). doi:10.1117/1.JBO.19.3.037006
History: Received October 22, 2013; Revised February 10, 2014; Accepted March 3, 2014
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Abstract.  The purpose of the present study was to measure the intradiscal pressure signal of an anesthetized sheep under spontaneous breathing. An ultra-miniature fiber optic high-pressure sensor was implanted into the nucleus pulposus of the fifth lumbar intervertebral using a dorsolateral transforaminal approach. Results suggested the periodicity of the intradiscal pressure signal was similar to the mean respiratory rate of the animal. The average resting intradiscal pressure was also calculated and compared to available data.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Paulo Roriz ; João M. C. Ferreira ; José C. Potes ; Maria T. Oliveira ; Orlando Frazão, et al.
"In vivo measurement of the pressure signal in the intervertebral disc of an anesthetized sheep", J. Biomed. Opt. 19(3), 037006 (Mar 31, 2014). ; http://dx.doi.org/10.1117/1.JBO.19.3.037006


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