Disorders of Consciousness
Conditions
Keywords
PET-fMRI-EEG, brain network, coma, Vegetative state(VS), Unresponsive wakefulness syndrome (UWS), Minimally conscious state(MCS), Emerged from minimally conscious state(EMCS)
Brief summary
Simultaneous measurement of the three modalities, functional magnetic resonance imaging (fMRI), positron emission tomography (PET) and electroencephalography (EEG) was proven to be feasible and advantageous in evaluating brain structural and functional (via fMRI), metabolic (via PET) and electrophysiological (via EEG) signatures simultaneously under the same conditions. Investigators use trimodal PET-fMRI-EEG imaging to explore the characteristics of brain network damage in patients with disorders of consciousness(DOC), assess the trajectory of consciousness recovery in a prospective observational cohort study.
Interventions
OTHERPET-fMRI-EEG
Participants perform PET, fMRI, and EEG simultaneously using a MRI compatible EEG cap
Sponsors
Xijing Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. Coma, VS/UWS, MCS and EMCS according to diagnostic criteria 2. Age ≥18 years 3. Written informed consent obtained
Exclusion criteria
1. Patients with contraindications to PET, MRI, EEG examinations or inability to complete PET-fMRI-EEG examinations (presence of ferromagnetic metal implants or hyperthermia) 2. Hyperglycemia that is difficult to correct 3. Patients with long-term use of corticosteroids 4. Patients with coexisting severe systemic disease and limited life expectancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| CRS-R total score | Patients in coma after 3 weeks enrolled | The coma recovery scale-revised(CRS-R) total score is used to measure level of consciousness of disorder in enrolled patients. CRS-R consists of six subscales addressing auditory, visual, motor, verbal, communication, and arousal functions.The lowest item on each subscale represents reflexive activity and the highest item represents cognitively mediated behavior. Maximum scores of each subscale are summed to obtain the total score (from 0 to 23).The score for each subscale is based on the presence or absence of a specific behavioral response to a sensory stimulus (higher scores are better). |
| GOSE score | Patients are followed up for 6 months after enrolled | Glasgow Outcome Scale-Extended(GOSE) score is used to measure the functional limitations of participants. GOSE is a 1-8 point scale (1 = Death, 2 = Vegetative State, 3 = Lower Severe Disability, 4 = Upper Severe Disability, 5 = Lower Moderate Disability, 6 = Upper Moderate Disability, 7 = Lower Good Recovery, and 8 = Upper Good Recovery). Patients with higher scores are more independent. |
Countries
China
Contacts
Primary ContactRong Chen
Outcome results
None listed