Abstract
Objectives
The purpose of this study was to investigate the use of MRI in predicting prostate growth and development.
Methods
A total of 1,500 healthy male volunteers who underwent MRI of the pelvis were included in this prospective study. Subjects were divided into five groups according to age (group A, 2–5 years; group B, 6–10 years; group C, 11-15 years; group D, 16-20 years; group E, 21-25 years). Total prostate volume (TPV) as well as prostate central zone (CZ) and peripheral zone (PZ) were measured and evaluated on MRI. Data of the different groups were compared using variance analysis, Scheffé's method, Kruskal–Wallis H-test, and Pearson’s correlation. Statistical significance was inferred at P < 0.05.
Results
In groups A and B, the prostates were barely visible. In group C, although TPV was measured, it was hard to distinguish CZ and PZ. In group D, 136 CZ and PZ were clearly visible. In group E, 377 CZ and PZ were clearly visible on T2-weighted imaging (T2WI). The median TPVs of groups A, B, C, D, and E were 0.00 cm3, 0.05 cm3, 2.83 cm3, 8.32 cm3, and 11.56 cm3, respectively, and the median prostate development scores were 0.08, 0.69, 1.56, 2.38, and 2.74, respectively. Both TPVs and zonal anatomy scores varied significantly among the five groups (P = 0.000). TPV and zonal anatomy score increased with increasing age.
Conclusions
MRI provides a reliable quantitative reference for prostate growth and development.
Key Points
• When and how the prostate develops after birth remains unclear.
• Prostate volume increases rapidly after the age of 10 years.
• MRI provides a reliable objective and quantitative reference for prostate growth and development.
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Acknowledgments
The scientific guarantor of this publication is Professor Yi Huan. The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article. This study received funding from the National Natural Science of China Foundation and high-tech clinical projects of Xijing Hospital (Grants NSFC 81370039, NSFC 81220108011, and XJGX13LC11). No complex statistical methods were necessary for this paper. Institutional Review Board approval was obtained. Written informed consent was obtained from all subjects (patients) in this study. The study subjects or cohorts have not been previously reported. Methodology: retrospective diagnostic or prognostic study, performed at one institution.
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Ren, J., Liu, H., Wang, H. et al. MRI to predict prostate growth and development in children, adolescents and young adults. Eur Radiol 25, 516–522 (2015). https://doi.org/10.1007/s00330-014-3372-x
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DOI: https://doi.org/10.1007/s00330-014-3372-x