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This observational study focus on a new parameter of cerebral perfusion derived form digital substraction angiography.
Ischemic cerebrovascular disease is an important cause of death and disability in the world. Digital Subtraction Angiography (DSA) is the golden index for evaluating cerebral blood vessels. We introduced a new parameter derived from DSA to evaluate the perfusion to predict the outcomes in acute stroke with large vessel occlusion.
To study the possible relationship between the new parameter of cerebral perfusion derived from DSA and outcomes in cerebral ischemia（modified Rankin Scale）, we intend to retrospectively analyze the images derived from patients who undergone the DSA and follow-up outcomes（modified Rankin Scale）.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| good perfusion in DSA | We introduced a new parameter derived from DSA to evaluate the perfusion in cerebral ischemia.(good perfusion) | ||
| middle perfusion in DSA | We introduced a new parameter derived from DSA to evaluate the perfusion in cerebral ischemia.(middle perfusion) | ||
| poor perfusion in DSA | We introduced a new parameter derived from DSA to evaluate the perfusion in cerebral ischemia.(poor perfusion) |
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| Measure | Description | Time Frame |
|---|---|---|
| the outcomes between good perfusions and poor perfusions | Results are reported as odds ratios (ORs) with 95% confidence intervals (CIs). | 3 months to 2 years |
| Measure | Description | Time Frame |
|---|---|---|
| the outcomes between good perfusions and middle perfusions | Results are reported as odds ratios (ORs) with 95% confidence intervals (CIs). | 3 months to 2 years |
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Inclusion Criteria:
Exclusion Criteria:
1.cerebral hemorrhage
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the study population is from primary care clinic
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Tian Ye, doctor | Contact | +8613519131549 | chhty@sina.com |
| Name | Affiliation | Role |
|---|---|---|
| Nannan Han, doctor | department of neurology Xi'an No3 Hospital | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Xi'an No.3 Hospital | Recruiting | Xi'an | Shaanxi | 710018 | China |
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| ID | Term |
|---|---|
| D002545 | Brain Ischemia |
| ID | Term |
|---|---|
| D002561 | Cerebrovascular Disorders |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |