Purpose

This study was carried out to evaluate the utility of susceptibility-weighted imaging (SWI) in demonstrating retinal hemorrhages (RH) in pediatric head trauma.

Methods

Over a period of 7 years 67 children (age 0–4 years) with head trauma and MRI were included as either abusive head trauma (AHT) (n = 23), non-abusive head trauma (NAHT) (n = 38), or indeterminate (n = 6). Two pediatric neuroradiologists jointly reviewed the MR images for the presence of RH and sensitivity and specificity of SWI and T2WI were calculated.

Results

The dilated fundoscopic examination (DFE) was positive for RH in 18/23 (78.3%) of the AHT group, 5/38 (13.2%) in the NAHT group, and 4/6 (66.7%) in the indeterminate group. Regarding the SWI MRI findings, SWI was positive for RH in 13/23 (%56.5), while T2WI was positive in 6/23 (%26.1) of the AHT group. Based on utilizing DFE as a standard, the sensitivity and specificity of SWI in the detection of RH was 63% and 100%, respectively and 30% and 100%, respectively on T2WI.

Conclusion

Our results suggest that SWI is a useful diagnostic tool for detection of RH in pediatric head trauma in whom DFE is difficult to perform.

中文翻译：

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磁敏感加权成像在检测儿童头部外伤视网膜出血中的作用。

目的

本研究旨在评估磁敏感加权成像 (SWI) 在证明小儿头部外伤视网膜出血 (RH) 中的效用。

方法

在 7 年的时间里，67 名头部外伤和 MRI 的儿童（0-4 岁）被纳入为虐待性头部外伤 (AHT) ( n  = 23)、非虐待性头部外伤 (NAHT) ( n  = 38)、或不确定（n  = 6）。两名儿科神经放射科医师共同审查了 MR 图像中是否存在 RH，并计算了 SWI 和 T2WI 的敏感性和特异性。

结果

AHT 组 18/23 (78.3%)、NAHT 组 5/38 (13.2%) 和不确定组 4/6 (66.7%) 的散瞳眼底检查 (DFE) RH 阳性。关于 SWI MRI 结果，AHT 组中 13/23 (%56.5) 的 SWI RH 阳性，而 T2WI 阳性的有 6/23 (%26.1)。以DFE为标准，SWI检测RH的敏感性和特异性分别为63%和100%，对T2WI分别为30%和100%。

结论

我们的结果表明，SWI 是一种有用的诊断工具，可用于检测 DFE 难以执行的儿科头部创伤中的 RH。