Use of multisequence 3.0-T MRI to detect severe traumatic brain injury and predict the outcome
11 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
Objective:
The aim of this study was to evaluate multisequence 3.0-T MRI in the detection of severe traumatic brain injury (sTBI) and in predicting the outcome.
Methods:
32 patients with sTBI were prospectively enrolled, and multisequence 3.0-T MRI was performed 4-8 weeks post injury. Quantitative data were recorded on each sequence. The ability to display the parenchymal lesions was compared with that of 64-slice spiral CT. The clinical and radiological results were correlated with the Glasgow Outcome Scale Extended scores 6 months after injury.
Results:
3.0-T MRI could display more lesions than CT, especially when the lesion was deeply located. The lesion volumes and diffuse axonal injury (DAI) scores were different between good and poor outcome groups on fluid attenuated inversion recovery (p < 0.05). The apparent diffusion coefficient (ADC) values of the splenium of the corpus callosum and brain stem were also different (p < 0.05). Patients with unfavourable outcome showed a significantly higher volume of haemorrhage on susceptibility-weighted imaging than those with favourable outcomes and had haemorrhages generally located more deeply. Logistic regression analysis revealed that the location of haemorrhage and the ADC values of the splenium of the corpus callosum were independent risk factors for poor outcome, with an overall predictive accuracy of 91.4%.
Conclusion:
The joint use of conventional and advanced sequences of 3.0-T MRI can comprehensively detect the pathological changes occurring after sTBI. Haemorrhagic and non-haemorrhagic DAIs in deep structures strongly suggest poor outcome.
Advances In Knowledge:
This article improves the understanding of advanced MRI sequences in the detection of patients with sTBI and prediction of prognosis.
Insights
Advanced 3.0-T MRI detects more severe traumatic brain injury (sTBI) lesions than CT. Deep hemorrhages and specific MRI markers predict poor outcomes with 91.4% accuracy.
Area of Science:
- Neuroimaging
- Radiology
- Trauma Medicine
Background:
- Severe traumatic brain injury (sTBI) diagnosis and outcome prediction remain challenging.
- Conventional imaging modalities may not fully capture the extent of brain damage.
- Advanced MRI techniques offer potential for improved detection and prognostication.
Purpose of the Study:
- To evaluate multisequence 3.0-Tesla (3.0-T) Magnetic Resonance Imaging (MRI) for detecting sTBI.
- To assess the ability of 3.0-T MRI to predict patient outcomes after sTBI.
Main Methods:
- Prospective enrollment of 32 patients with sTBI.
- Multisequence 3.0-T MRI performed 4-8 weeks post-injury.
- Comparison of MRI lesion detection with 64-slice spiral CT.
- Correlation of imaging findings with Glasgow Outcome Scale Extended (GOSE) scores at 6 months.
Main Results:
- 3.0-T MRI identified more lesions than CT, particularly deep-seated ones.
- Significant differences in lesion volumes and diffuse axonal injury (DAI) scores between good and poor outcome groups (p < 0.05).
- Apparent diffusion coefficient (ADC) values in the splenium of the corpus callosum and brainstem differed between outcome groups (p < 0.05).
- Higher hemorrhage volumes and deeper hemorrhage locations on susceptibility-weighted imaging were associated with unfavorable outcomes.
- Logistic regression identified hemorrhage location and splenium ADC values as independent predictors of poor outcome (91.4% accuracy).
Conclusions:
- Multisequence 3.0-T MRI comprehensively detects pathological changes post-sTBI.
- Joint use of conventional and advanced MRI sequences enhances diagnostic capability.
- Hemorrhagic and non-hemorrhagic DAI in deep brain structures are strong indicators of poor prognosis.
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