Journal
NEURORADIOLOGY
Volume 61, Issue 1, Pages 81-87Publisher
SPRINGER
DOI: 10.1007/s00234-018-2127-9
Keywords
Abusive head trauma; MRI; CT
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PurposeThe purpose of this study was to determine the accuracy of black bone (BB) MRI for the detection of skull fractures in children with potential abusive head trauma.MethodsA total of 34 pediatric patients were evaluated for potential abusive head trauma. All patients had both a non-contrast head CT (HCT) with multiplanar reformatted images and3D volumetric reformatted images where available (gold standard) for fracture diagnosis and BB of the head with multiplanar reformatted images and 3D volumetric images. BB was performed using an ultrashort TE pointwise encoding time reduction with radial acquisition (PETRA) sequence at 1.5T or 3T. BB datasets were post-processed and 3D images created using Fovia's High Definition Volume Rendering (R) software. Two board-certified pediatric neuroradiologists independently reviewed the HCT and BB imaging, blinded to the findings from the other modality.ResultsMedian patient age was 4months (range 1.2-30months). A total of 20 skull fractures in six patients (18% incidence of skull fractures) were detected on HCT. BB demonstrated 83% sensitivity (95%[CI] 36-99%), 100% specificity (95%[CI] 88-100%), 100% PPV (95%[CI] 46-100%), 97% NPV (95%[CI] 82-99%), and 97% accuracy (95%[CI] 85-99%) for diagnosis of a skull fracture. BB detected 95% (19/20) of the skull fractures detected by CT.ConclusionA black bone MRI sequence may provide high sensitivity and specificity for detection of skull fractures in pediatric patients with abusive head trauma.
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