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[Intra-arterial digital subtraction angiography using 4-F-catheters for evaluating cerebrovascular insufficiency]
Insights
Intra-arterial digital subtraction angiography (IA-DSA) effectively diagnoses cerebrovascular insufficiency with high accuracy, comparable to conventional angiography. This method uses less contrast agent and smaller catheters, potentially reducing procedural hazards.
Area of Science:
- Neurology
- Radiology
- Vascular Imaging
Background:
- Cerebrovascular insufficiency diagnosis relies on accurate imaging of the aortic arch and carotid arteries.
- Conventional angiography has limitations in terms of contrast volume and catheter size.
Purpose of the Study:
- To evaluate the diagnostic accuracy and safety of intra-arterial digital subtraction angiography (IA-DSA) for cerebrovascular insufficiency.
- To compare IA-DSA with conventional angiography regarding contrast agent volume and catheter size.
Main Methods:
- 82 patients underwent IA-DSA, including imaging of the aortic arch and selective depiction of both carotid arteries.
- A 4-F catheter and 30 ml of contrast agent were used for the imaging series.
- Image quality was assessed for each depicted vessel.
Main Results:
- IA-DSA achieved diagnostic accuracy comparable to conventional angiography for cerebrovascular insufficiency.
- Definite diagnoses were made in 96% for the right and 98% for the left carotid artery.
- Vertebral artery evaluation required additional imaging in some cases.
Conclusions:
- IA-DSA is a highly accurate diagnostic tool for cerebrovascular insufficiency.
- The procedure appears less hazardous than conventional angiography due to reduced contrast agent and smaller catheter use.
- IA-DSA offers a potentially safer alternative for evaluating the aortic arch and carotid arteries.
Abstract:
82 patients were examined by IA-DSA using 4-F-catheter, 70 on an hospital and 12 on an outpatient basis. The examination included imaging of the aortic arch and selective depiction of both carotid arteries and required 30 ml of contrast agent for these three consecutive series. Image quality was evaluated for each vessel respectively. Cerebrovascular insufficiency could be diagnosed with the same accuracy as in conventional angiography. A definite diagnosis could be made in 96% of the cases for the right and in 98% for the left carotid artery. The vertebral arteries posed more problems for evaluation and required additional imaging depending on the clinical situation. Since introduction of IA-DSA the procedure seems to be less hazardous compared with conventional angiography because less contrast agent is needed and smaller catheters can be used.