About this trial
The goal of this observational study is to learn about how to utilize multiple evaluation techniques in carotid artery stenosis patients for optimizing assessment of diagnosis and treatment strategy.
The main questions it aims to answer are:
* Identify best strategy that use multi-modal MRI and CT to assess patients' cerebral lesions and perfusion. * Identify best strategy that use multi-modal MRI, PET-MRI ultrasound and CT to assess components and characters of patients' carotid plaques.
Participants will accept imaging examination before and after surgery. And doctors will collect basic characteristics, imaging results and biological samples of patients for analysis.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
patients with severe stenosis (≥50%) or near-occlusion diagnosed by computed tomographic angiogram;
patients received carotid endarterectomy at Peking Union Medical College Hospital
Disqualifiers
None
Trial population
Mild to severe carotid stenosis or near-occlusion patients receiving carotid revascularization treatment.
Trial design
Cohort
Prospective
Treatments tested in this trial
Carotid revascularization
Procedure/SurgeryAll patients received carotid revascularization surgery at Peking Union Medical College Hospital.
MRI-PWI
Diagnostic testMulti-modal MRI before and after surgery.
CTA
Diagnostic testCTA before and after surgery.
PET/MRI
Diagnostic testPET/MRI before surgery.
Ultrasound
Diagnostic testUltrasound before and after surgery.
Treatment groups
Trial outcomes
Primary outcomes
stroke
perioperative stroke
cardiac infarction
perioperative cardiac infarction
transient ischemic attack
perioperative transient ischemic attack
cerebral hyperperfusion syndrome
perioperative cerebral hyperperfusion syndrome
Secondary outcomes
Image characters of MRI
Arterial transit times, cerebral blood flow, plaque characters, etc.
Image characters of PET/MRI
Diagnostic performance of 68Ga-FAPI PET/MR for intracranial or carotid atherosclerosis
Image characters of ultrasound
Diagnostic performance of carotid artery ultrasound for intracranial or carotid atherosclerosis
Carotid plaque characters
pathology characters of carotid plaque
Sponsors and contacts
Click on the lead sponsor to view all of their trials.