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31.07.2018 | Neuro

Quantitative dynamic contrast-enhanced MR imaging shows widespread blood-brain barrier disruption in mild traumatic brain injury patients with post-concussion syndrome

Zeitschrift:
European Radiology
Autoren:
Roh-Eul Yoo, Seung Hong Choi, Byung-Mo Oh, Sang Do Shin, Eun Jung Lee, Dong Jae Shin, Sang Won Jo, Koung Mi Kang, Tae Jin Yun, Ji-hoon Kim, Chul-Ho Sohn
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00330-018-5656-z) contains supplementary material, which is available to authorized users.

Abstract

Objectives

To explore the utility of dynamic contrast-enhanced (DCE) MR imaging for quantitative analysis of blood-brain barrier disruption in mild traumatic brain injury (mTBI) patients with post-concussion syndrome (PCS).

Methods

Forty-four consecutive patients with PCS after mTBI and 32 controls were included in this retrospective study. Ktrans and ve from DCE MR imaging were analyzed at contrast-enhancing lesions, T2 hyperintense white matter (WM) lesions, normal-appearing white matter (NAWM), and predilection sites for diffuse axonal injury (LocationDAI). The Mann-Whitney U-test was performed to compare the parameters between mTBI patients and controls and the parameters were correlated with neuropsychological tests using Mann-Whitney U-test and Spearman rank correlation.

Results

The median ve of the T2 hyperintense WM lesions in mTBI patients (n=21) was higher than that of NAWM in controls (p=.027). Both median Ktrans and ve at NAWM were also significantly higher in mTBI patients than in controls (p=.023 and p=.029, respectively). In addition, mTBI patients had higher Ktrans and ve at LocationDAI than controls (p=.008 and p=.015, respectively). VLT (delayed recall) scores were significantly correlated with ve values at T2 hyperintense WM lesions (p=−0.767, p=.044). The median ve at LocationDAI was significantly higher in patients with atypical performance in the digit span test (forward) than in those with average or good performance (p=.043).

Conclusions

mTBI patients with PCS had higher Ktrans and ve values than controls not only at T2 hyperintense WM lesions but also at NAWM and LocationDAI. BBB disruption may be implicated in development of PCS in mTBI patients.

Key Points

• mTBI patients with PCS had higher permeability than controls at T2 hyperintense WM lesions on DCE MR imaging.
• mTBI patients with PCS had higher permeability than controls also at NAWM and predilection sites for DAI.
• BBB disruption may be implicated in the development of PCS in mTBI patients.

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330_2018_5656_MOESM1_ESM.docx
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