Abusive head trauma: differentiation between impact and non-impact cases based on neuroimaging findings and skeletal
T Sieswerda-Hoogendoorn1, S G F Robben2, W A Karst3
1Department of Forensic Medicine, Netherlands Forensic Institute, The Hague, The Netherlands; Department of Radiology, Academic Medical Center/Emma Children's Hospital, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
Objectives:
To determine whether imaging findings can be used to differentiate between impact and non-impact head trauma in a group of fatal and non-fatal abusive head trauma (AHT) victims.
Methods:
We included all AHT cases in the Netherlands in the period 2005-2012 for which a forensic report was written for a court of law, and for which imaging was available for reassessment. Neuroradiological and musculoskeletal findings were scored by an experienced paediatric radiologist.
Results:
We identified 124 AHT cases; data for 104 cases (84%) were available for radiological reassessment. The AHT victims with a skull fracture had fewer hypoxic ischaemic injuries than AHT victims without a skull fracture (p=0.03), but the relative difference was small (33% vs. 57%). There were no significant differences in neuroradiological and musculoskeletal findings between impact and non-impact head trauma cases if the distinction between impact and non-impact head trauma was based on visible head injuries, as determined by clinical examination, as well as on the presence of skull fractures.
Conclusions:
Neuroradiological and skeletal findings cannot discriminate between impact and non-impact head trauma in abusive head trauma victims.
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