Journal Article

Forensic age assessment by 3.0 T MRI of the wrist: adaption of the Vieth classification

Schmidt, S., Ottow, C., Pfeiffer, H., Buerke, B., Heindel, W., Schmeling, A., Vieth, V.

2022

Overview

Objectives In order to find a reliable method to correctly assess majority in both sexes by MRI, a study was conducted to evaluate the applicability of the recently presented Vieth classification in wrist MRI, after it had originally been proposed for knee MRI. Methods After receiving a positive vote by the ethics committee, the left-hand wrists of 347 male and 348 female volunteers of German nationality in the age bracket 12–24 years were scanned. Before conducting the prospective, cross-sectional examinations, an informed consent was obtained from each volunteer. A 3.0 T MRI scanner was used, acquiring a T1 turbo spin-echo sequence (TSE) and a T2 TSE sequence with fat suppression by spectral presaturation with inversion recovery (SPIR). The images were assessed by applying the Vieth classification. Minimum, maximum, mean ± standard deviation, and median with lower and upper quartiles were defined. Intra- and interobserver agreements were determined by calculating the kappa coefficients. Differences between the sexes were analyzed using the Mann-Whitney U test. Results By applying the unmodified Vieth classification with corresponding schematics, it was possible to assess majority in both sexes via the epiphyseal-diaphyseal fusion of the distal radius and in males also via the epiphyseal-diaphyseal fusion of the distal ulna. The Mann-Whitney U test implied significant sex-related differences for all stages. For both epiphyses, the intra- and interobserver agreement levels were very good ( κ > 0.8). Conclusion If confirmed by further studies, it would be possible to determine the completion of the 18th year of life in both sexes by 3.0 T MRI of the wrist and using the Vieth classification. Key Points • The Vieth classification allows determining majority in males and females alike based on the distal radius’ epiphysis by 3.0 T MRI of the wrist. • The Vieth classification also allows determining majority in males based on the distal ulna’s epiphysis by 3.0 T MRI of the wrist, but not in females. • The presented data can be deemed referential within certain discussed boundaries.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: Adolescent / Adult / Age Determination by Skeleton - methods / Child / Classification / Cross-Sectional Studies / Diagnostic Radiology / Epiphysis / Female / Females / Forensic Medicine / Forensic science / Gender differences / Humans / Image classification / Imaging / Informed consent / Internal Medicine / Interventional Radiology / Magnetic resonance imaging / Magnetic Resonance Imaging - methods / Male / Males / Mann-Whitney U test / Medicine / Medicine & Public Health / Neuroradiology / Osteogenesis / Prospective Studies / Quartiles / Radiology / Sex differences / Ulna / Ultrasound / Wrist / Wrist - diagnostic imaging / Young Adult