Abstract:
:Pedicle screw (PS) fixation has been widely used for spine diseases. Scientists and clinicians employ several approaches to navigate PS during operation. We have demonstrated the feasibility of monitoring the reduced scattering coefficient (μ's) on the trajectory of PS using near-infrared spectroscopy (NIRS). To perform the in-vitro monitoring, an NIRS measurement system was introduced and the reduced scattering coefficients of different sites in porcine pedicle were accurately deduced from the spectrum. Moreover, the changes of the reduced scattering coefficient along the different paths were studied. The results show reduced scattering coefficients on different regions of bones can be significantly distinguished. Furthermore, monitoring experiments along different paths confirmed that a reduced scattering coefficient would change versus the depth of puncture in pedicles. Thus, the proposed monitoring system based on NIRS provides a potential for guiding PS during operation.
journal_name
J Biomed Optjournal_title
Journal of biomedical opticsauthors
Liu Y,Wang Y,Qian Z,Zhao J,Cao X,Li Wdoi
10.1117/1.JBO.19.11.117002subject
Has Abstractpub_date
2014-01-01 00:00:00pages
117002issue
11eissn
1083-3668issn
1560-2281pii
1934597journal_volume
19pub_type
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