軽症頭部外傷患者の神経放射線学的所見の検討：CTとMRIの比較

抄録

Background: Most patients recover fully from mild traumatic head injury (mTHI), but a few patients have persistent neurocognitive problems. The purpose of this study is to provide whether magnetic resonance imaging (MRI) can provide more detailed information of the mTHI than computed tomography (CT) in the young patients.

Methods: We enrolled 20 patients younger than 20 years with mTHI, who underwent CT and MRI in the acute stage after injury. We compared the intracranial traumatic findings (ITF) of CT with MRI. Furthermore, we compared the depiction ability of ITF on 2D image with 3D image.

Results: One (5%) of 20 patients had ITF with CT (acute sub and epidural hematoma 1). 5 (25%) of 20 had ITF with MRI (acute sub and epidural hematoma 1, brain contusion and acute subdural hematoma 2, and brain contusion 2). There was no significant difference the time needed to MRI scanning form CT scanning between positive group and negative group of ITF with MRI (p<0.07). 3D image of FLAIR was more sensitive for the visualization and detection of ITF than 2D image.

Conclusion: MRI is more sensitive than CT in the detection of ITF with mTHI. Particularly, 3D FLAIR provides detail information of ITF.