Comparative analysis between susceptibility-weighted imaging and conventional T2*-weighted spoiled phase gradient-echo imaging in detecting intracranial bleeds in patients with mild traumatic brain injury
10.3760/cma.j.issn.1001-8050.2014.11.013
- VernacularTitle:磁敏感加权成像与常规二维梯度回波成像对轻型脑损伤评估价值的比较分析
- Author:
Rui LUO
;
Jun CHEN
;
Hui CHEN
- Publication Type:Journal Article
- Keywords:
Craniocerebral trauma;
Diagnostic imaging;
Magnetic resonance imaging;
Susceptibility-weighted imaging
- From:
Chinese Journal of Trauma
2014;30(11):1107-1111
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the advantages of susceptibility-weighted imaging (SWI) over conventional T2*-weighted spoiled phase gradient-echo imaging (T2* WI) in detecting brain hemorrhage in patients with mild traumatic brain injury (MTBI) and its relationship to outcome after MTBI.Methods Clinical information,T2* WI and SWI of 57 patients with MTBI were collected.Bleeding cases and number of cerebral micro-cerebral bleeds (MCBs) detected using T2* WI and SWI were compared statistically.Correlation analysis between SWI and clinical outcome was performed.Results Hemorrhage in 43 patients (75％) with MCBs amounting to 237 was detected using SWI,while hemorrhage in 32 patients (56％) with MCBs amounting to 123 was found using T2* WI (P＜0.01).Thirty-five patients experienced short-term unconsciousness,including 22 being detected with post cerebral traumatic syndrome (PCTS) at follow-up.Twenty-two patients experienced no coma,among which 10 developed PCTS at follow-up.Based on the SWI,patients who experienced coma showed higher incidence of hemorrhage compared with patients who did not (86％ vs 59％,P＜0.05),and patients with hemorrhagic focus was associated with higher probability of PCTS compared with patients without (65％ vs 29％,P＜0.05).Conclusions SWI is more sensitive than conventional T2* WI in detecting cerebral MCBs.MCBs are related to the late prognosis of MTBI patients,but SWI can supply certain valuable and objective information.
