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Proceedings Paper

Optical diagnosis of testicular torsion: feasibility and methodology
Author(s): Babak Shadgan; Andrew Macnab; Lynn Stothers; A. M. Kajbafzadeh
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Paper Abstract

Background: Torsion of the testis compromises blood flow through the spermatic cord; testicular ischemia results which if not diagnosed promptly and corrected surgically irrevocably damages the testis. Current diagnostic modalities aimed at rationalizing surgical exploration by demonstrating interruption of spermatic cord blood flow or testicular ischemia have limited applicability. Near infrared spectroscopy (NIRS) offers a non-invasive optical method for detection of ischemia; continuous wave and frequency domain devices have been used experimentally; no device customized for clinical use has been designed. Methods: A miniature spatially resolved NIRS device with light emitting diode light source was applied over the right and left spermatic cord and the difference in oxygen saturation between the two sides measured. Results: In a 14-month old boy with a history of unilateral testicular pain color Doppler ultrasonography was equivocal but the NIRS-derived tissue oxygen saturation index (TSI) was significantly reduced on the left side. Confirmation of torsion of the left testicle was made surgically. Conclusions: Spatially resolved NIRS monitoring of spermatic cord oxygen saturation is feasible in children, adding to prior studies of testicular oxygen saturation in adults. Customized device design and further clinical trials would enhance the applicability of NIRS as a diagnostic entity for torsion.

Paper Details

Date Published: 4 March 2014
PDF: 11 pages
Proc. SPIE 8926, Photonic Therapeutics and Diagnostics X, 892618 (4 March 2014); doi: 10.1117/12.2038283
Show Author Affiliations
Babak Shadgan, The Univ. of British Columbia (Canada)
Andrew Macnab, The Univ. of British Columbia (Canada)
Wallenberg Research Ctr. (South Africa)
Lynn Stothers, The Univ. of British Columbia (Canada)
A. M. Kajbafzadeh, Tehran Univ. of Medical Sciences (Iran, Islamic Republic of)

Published in SPIE Proceedings Vol. 8926:
Photonic Therapeutics and Diagnostics X
Bernard Choi; Hyun Wook Kang; Brian J. F. Wong M.D.; Guillermo J. Tearney M.D.; Andreas Mandelis; Nikiforos Kollias; Kenton W. Gregory M.D.; Justus F. Ilgner M.D.; Haishan Zeng; Laura Marcu, Editor(s)

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