Radiographic identification using midline medical sternotomy wires
1Michigan State University, Department of Anthropology, 655 Auditorium Dr., Baker Hall Room 355, East Lansing, MI, 48824.
Journal of Forensic Sciences
|November 28, 2014
Summary
Midline sternotomy wires are a reliable forensic tool for personal identification. Forensic anthropologists achieved 99.5% accuracy using these wires in radiographic comparisons, confirming their individualizing characteristics.
Area of Science:
- Forensic Anthropology
- Radiology
- Personal Identification
Background:
- Forensic anthropologists utilize comparative medical radiography for identifying unknown individuals.
- Midline sternotomy wires, used in medical procedures, present a potential biometric for identification.
Purpose of the Study:
- To evaluate the efficacy of midline sternotomy wires as a method for personal identification.
- To assess the accuracy of forensic anthropologists in matching antemortem and postmortem radiographs based on sternotomy wires.
Main Methods:
- 46 forensic anthropologists and graduate students performed radiographic matches using sternotomy wires.
- Participants compared 20 radiographs, making five matches each.
- An anonymous survey collected data on participants' education and experience.
Main Results:
- Participants achieved 99.5% accuracy in matching radiographs.
- Sensitivity was 98.7% and specificity was 99.7%.
- Logistic regression showed no significant difference in matching ability based on experience or education.
Conclusions:
- Midline sternotomy wires possess individualizing characteristics (shape, size, features).
- These wires can be confidently used in personal identification cases by forensic anthropologists.
- Comparative radiography of sternotomy wires is a highly accurate identification technique.
