© Steven Ross 2018
Note - Asymmetry assessment is based on a 20% threshold of volume asymmetry. Standard deviations also include a 10% estimation of interoperator variability since the standard deviations were obtained by one ultrasound operator.
- Goede, J., et al. “Normative Values for Testicular Volume Measured by Ultrasonography in a Normal Population from Infancy to Adolescence.” Hormone Research in Paediatrics, vol. 76, no. 1, 2011, pp. 56–64.
- Poon, Stephen A., et al. “Testicular Asymmetry and Adolescent Varicoceles Managed Expectantly.” The Journal of Urology, vol. 183, no. 2, Feb. 2010, pp. 731–34.