major intracranial artery stenosis
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Cases who have undergone cerebrovascular 3D contrast-enhanced CT examination or 3D cerebral angiography examination for which the original image DICOM data remain 2) Cases with about 30% or more stenosis found in the intracranial main artery (intracranial internal carotid artery, middle cerebral artery M1 portion, anterior cerebral artery A1 portion, intracranial vertebral artery, and basilar artery) by cerebrovascular imaging 3) Cases aged 20 years or older at the time of consent acquisition 4) Cases who have obtained the voluntary written consent of the patient (or his / her substitute)
Exclusion criteria
Exclusion criteria: 1) Cases with stenosis after irradiation 2) Cases with moyamoya disease 3) Cases with stenosis due to dissection 4) Cases with congenital stenosis 5) Cases after bypass surgery on the diseased side (registration is possible if there is an unoperated stenotic lesion on the contralateral side) 6) Patients after angioplasty of the lesion (registration is possible if there are other unoperated stenotic lesions) 7) When the principal investigator and the research coordinator judge that participation in this research is not appropriate
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To identify hemodynamic factors that are significantly involved in the progression of major intracranial artery stenosis using computational fluid dynamics (CFD) analysis. | — |
Secondary
| Measure | Time frame |
|---|---|
| To identify hemodynamic factors that are significantly involved in the development of symptomatic cerebral infarction due to major intracranial artery stenosis using CFD analysis. | — |
Countries
Japan
Contacts
National Hospital Organization Kyoto Medical Center Department of Neurosurgery