CNI Interventional Neuroradiology Service
Advanced Diagnostic Testing
Intra-operative angiography can help confirm that the goals of the operation have been met, thereby enabling the patient to avoid possible second surgery. In certain circumstances, it is also helpful to confirm the status of the normal anatomy to avoid the potential for complications.
Balloon Test Occlusion
In some circumstances, it is helpful to determine in advance of any therapeutic intervention whether or not intentional sacrifice of one of the carotid arteries will result in a decreased flow of blood to the brain, which could lead to a stroke This is especially true in the case of some giant aneurysms, where such intentional blockage of the carotid artery may be the best treatment. With the balloon test occlusion, a balloon is inflated in the carotid artery to temporarily block flow while the patient is awake in the angiography suite. The patient is monitored for a minimum of 30 minutes to ensure that there are no clinically apparent problems.