Carotid Artery Stenosis, Image
Conditions
Keywords
Carotid Artery Stenosis, MRI Imaging
Brief summary
The purpose of this study is to explore the relationship between the recovery of cerebrovascular morphology and cognitive function before and after surgical treatment in patients with carotid artery stenosis and their preoperative cardiac health status. And combined with preoperative cognitive status, serum markers, and cardiovascular health evaluation indicators, evaluate and predict the possibility of postoperative neurodegenerative diseases and the level of cerebrovascular health in patients.
Detailed description
The aim of this study is to evaluate the brain health status and surgical efficacy of patients with carotid artery stenosis. Firstly, investigate whether hemodynamic parameters such as blood flow reserve fraction at the carotid artery stenosis site are correlated with white matter hyperintensities and cerebral vascular morphological changes in elderly patients with normal cognition and mild cognitive impairment; Then, when the blood flow of carotid artery has been improved after surgery, compare the cerebrovascular health of patients before surgery and the way of cerebral vascular reconstruction; Combined with the postoperative neuropsychological cognitive test to explore the postoperative cognitive recovery of patients, and combined with the postoperative imaging data and the biomarker in the blood of patients at various stages, to explore the way of cerebral vascular reconstruction and changes in brain structure and function of different groups of patients behind cognitive changes.
Interventions
DEVICEmagnetic resonance image
Imaging data were collected in a strong magnetic field
DIAGNOSTIC_TESTNeuropsychological scale
Multi dimensional neuropsychological test
Sponsors
Xi'an Jiaotong University
The 2rd School of Medicine，WMU/The 2rd Affiliated Hospital and Yuying Children's Hospiyal of WMU
Nanjing University of Traditional Chinese Medicine
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
50 Years to 80 Years
Healthy volunteers
Yes
Inclusion criteria
* Aged over 50 years old; * Conscious and capable of completing neuropsychological scales * Clinical detection of carotid artery stenosis requires surgical treatment; * Compliant with carotid artery stenting or carotid endarterectomy surgical standards * Individuals with normal cognition and mild cognitive impairment
Exclusion criteria
* Degree of vascular blockage in other intracranial segments ≥ 50% * Have a history of mental illness, nervous system disease (such as stroke) or brain injury with loss of consciousness for more than five minutes; * Neurological and psychiatric disorders unrelated to AD (schizophrenia, depression, etc.), post-traumatic stress disorder, obsessive-compulsive disorder, multiple sclerosis, amyotrophic lateral sclerosis) * Have a history of alcohol or drug abuse * There are contraindications for magnetic resonance imaging examination * Those with significant organ dysfunction such as lung, liver, and kidney; * Patients with intracranial tumors, infectious diseases, and blood system diseases; * Participating in other clinical studies at the same time
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change of brain volume before and after treatment | before operation; 3-10 Days after operation; 1 month; 6-12months] | The change of brain volume (mm3) are evaluated by structural 3DT1 weighted MRI. Freesurfer software is used to get the measured value of the volume. |
| Change of cerebrovascular morphology before and after treatment | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of Cerebral vessel density, caliber and tortuosity, brain white matter hyperintensity lesion count |
| Change of brain function connectivity before and after operation | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of brain functional connectivity intensity are evaluated by rest stage functional MRI. DPABI software based on MATLAB is used to get the measured the matrix value of functional connectivity. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change of executive functions before and after operation evaluated by Trail-Making Test Part A | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of executive functions are first evaluated by Trail-Making Test Part A test. The minimum value is 0 , and the maximum value is 30. This test has no clear maximum and minimum values. If the test completion time exceeds 79 seconds, it means the outcome is abnormal. The higher scores mean a worse outcome. |
| Change of executive functions before and after operation evaluated by Digit Symbol Coding score | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of executive functions are second evaluated by Digit Symbol Coding score. The minimum value is 0 , and the maximum value is not clear. The normal range of results is 56.53 ± 20.17. The higher scores mean a better outcome. |
| Change of working memory before and after operation evaluated by Forward Digit Span | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of working memory is first evaluated by Forward Digit Span. The minimum value is 0 , and the maximum value is not clear. The normal range of results is 7.75±1.47. The higher scores mean a better outcome. |
| Change of serum marker concentration before and after operation | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of serum marker concentration is evaluated by inflammatory cytokine. |
| Change of language function before and after operation evaluated by Language Fluency test | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of language function is evaluated by Language Fluency test. The minimum value is 0 , and the maximum value is not clear. The normal range of results is 19.43±4.81. The higher scores mean a better outcome. |
| Change of executive functions before and after operation evaluated by Clock Drawing Test | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of executive functions is evaluated by Backward Digit Span. The minimum value is 0 , the maximum value is 4. |
| Change of executive functions before and after operation evaluated by Trail-Making Test Part B | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of executive functions are first evaluated by Trail-Making Test Part B test. The minimum value is 0 , and the maximum value is 30. This test has no clear maximum and minimum values. If the test completion time exceeds 79 seconds, it means the outcome is abnormal. The higher scores mean a worse outcome.It is a supplement to Trail-Making Test Part A, which is optional for patients who are not familiar with the English alphabetical order |
| Change of working memory before and after operation evaluated by Backward Digit Span | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of working memory is second evaluated by Backward Digit Span. The minimum value is 0 , and the maximum value is not clear. The normal range of results is 5.36±1.91. The higher scores mean a better outcome. |
| Change of plasma marker concentration before and after operation | before operation; 3-10 Days after operation; 1 month; 6-12months | The change of plasma marker concentration is evaluated by neurofilament light chain(NFL) protein extracted from plasma. |
| Brain evaluate basic cognition before operation | before operation | Basic cognition is evaluated by Mini-mental State Examination (MMSE) and Clinical Dementia Rating (CDR) . For MMSE , The minimum value is 0 , and the maximum value is 30. The higher scores mean a better outcome. For CDR , the results are represented by scores of 0,0.5,1,2,3, and the degree of cognitive impairment is classified as normal, suspicious, mild, moderate, and severe |
Countries
China
Contacts
Primary ContactBo Yin, phD
Backup ContactLijun Bai, phD
Outcome results
None listed