Diagnosis of Testicular Torsion by Measuring Attenuation of Dual Wavelengths in Transmission Geometry Across the Testis: An Experimental Study in a Rat Model

Objective To develop a noninvasive and real-time dual-wavelengths optic system to detect testicular torsion in an animal model. Diagnosis of testicular torsion is challenging in emergency conditions and frequently ends with surgical exploration. Materials and Methods In this study, 9 male 8-month-ol...

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Bibliographic Details
Published in:	Urology (Ridgewood, N.J.) Vol. 79; no. 4; pp. 966.e9 - 966.e12
Main Authors:	Canpolat, Murat, Yucel, Selcuk, Sircan-Kucuksayan, Aslinur, Kol, Arif, Kazanci, H. Ozgur, Denkceken, Tuba
Format:	Journal Article
Language:	English
Published:	United States Elsevier Inc 01-04-2012
Subjects:	Animals Disease Models, Animal Male Rats Rats, Wistar Spectroscopy, Near-Infrared Spermatic Cord Torsion - diagnosis Urology
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Summary:	Objective To develop a noninvasive and real-time dual-wavelengths optic system to detect testicular torsion in an animal model. Diagnosis of testicular torsion is challenging in emergency conditions and frequently ends with surgical exploration. Materials and Methods In this study, 9 male 8-month-old Wistar albino rats weighing an average of 400 g were used. A transverse incision on the upper scrotum was done and the right testis was torsed with a 720° medial rotation. The other testis of each rat was used as the control or sham group. In the sham group, the testicle was moved out of the body but no torsion was applied before repositioning into the scrotum. Transmission of continuous-wave light through all testes at wavelengths of 660 nm and 940 nm were measured. Results The ratio of the average intensities of the transmitted light of both wavelengths—660 nm to 940 nm—was used as a parameter to diagnose testis torsion. The ratios were significantly different ( P = .001) between the torsion group and control group. Conclusion Our noninvasive technique measuring attenuation of dual wavelengths in transmission geometry across the testis has the ability to distinguish between the testis with and without torsion on the basis of a threshold value of the ratio.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0090-4295 1527-9995
DOI:	10.1016/j.urology.2011.12.005