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[Diagnostic imaging in non-accidental brain injuries]
C Christophe1, G Guissard, T Sekhara
1Department of Imaging, Hôpital Universitaire des Enfants Reine Fabiola, Brussels, Belgium.
Summary
Diagnosing nonaccidental injury in infants is challenging due to subtle signs. Key indicators include severe brain lesions, retinal hemorrhages, and fractures, necessitating radiologist expertise.
Area of Science:
- Radiology
- Pediatric Imaging
- Forensic Medicine
Context:
- Nonaccidental injury (child abuse) diagnosis in infants presents challenges due to non-specific clinical findings and lack of external trauma signs.
- Radiologists play a crucial role in identifying radiologic indicators of abuse and correlating them with physical findings for accurate diagnosis.
Purpose:
- To outline the key radiologic findings indicative of nonaccidental injury in infants.
- To emphasize the importance of recognizing specific imaging patterns associated with abusive head trauma.
- To highlight MRI as the preferred modality for detecting cerebral lesions in nonaccidental injury.
Summary:
- Infants with nonaccidental injury often exhibit brain lesions disproportionate to the reported trauma, retinal hemorrhages, and characteristic fractures.
- Imaging findings in abusive head trauma include blunt impact, shaken, and whiplash shaken injuries.
- The combination of edema, cerebral swelling, hypoxic-ischemic injury, diffuse axonal injury, and subdural hematomas is highly suggestive of shaken infant syndrome.
Impact:
- Accurate radiologic diagnosis of nonaccidental injury is critical for timely intervention and improved long-term outcomes for abused infants.
- Understanding the pathophysiology and imaging characteristics of abusive head trauma aids in differentiating it from accidental injuries.
- Advanced imaging techniques like MRI enhance the detection and characterization of subtle cerebral injuries in nonaccidental injury cases.