Susceptibility weighted imaging depicts retinal hemorrhages in abusive head trauma

Autor: Janet Squires, Ellen Mitchell, Ken K. Nischal, Anshul Haldipur, Jennifer E Wolford, Giulio Zuccoli, Lee Ann Lope, Rachel P. Berger, Christin L. Sylvester, Ashok Panigrahy, Dennis Willaman
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Neuroradiology
ISSN: 1432-1920
0028-3940
Popis: Introduction This study aims to evaluate the capability of magnetic resonance imaging (MRI) susceptibility weighted images (SWI) in depicting retinal hemorrhages (RH) in abusive head trauma (AHT) compared to the gold standard dilated fundus exam (DFE). Methods This is a retrospective, single institution, observational study on 28 patients with suspected AHT, who had a DFE and also underwent brain MRI-SWI as part of routine diagnostic protocol. Main outcome measures involved evaluation of patients to determine whether the RH could be identified on standard and high-resolution SWI sequences. Results Of the 21 subjects with RH on DFE, 13 (62 %) were identified by using a standard SWI sequence performed as part of brain MRI protocols. Of the 15 patients who also underwent an orbits SWI protocol, 12 (80 %) were positive for RH. None of the seven patients without RH on of DFE had RH on either standard or high-resolution SWI. Compared with DFE, the MRI standard protocol showed a sensitivity of 75 % which increased to 83 % for the orbits SWI protocol. Conclusions Our study suggests the usefulness of a tailored high-resolution orbits protocol to detect RH in AHT.
Databáze: OpenAIRE