What is the purpose of acquiring a roadmap during a neuro angiography procedure?

Acquiring a roadmap during a neuroangiography procedure is primarily aimed at creating a guide for catheter placement. The roadmap is generated using imaging techniques, typically before intervention, to visualize the vascular anatomy of the brain and surrounding structures in a more detailed and simplified manner.

This roadmap allows interventional radiologists to see the precise anatomy of the vessels involved, which is crucial for avoiding complications, facilitating navigation, and ensuring successful interventions. By having a visual representation of the vessels and any anomalies that may exist, the interventionalist can plan the catheter's trajectory more effectively, which enhances the accuracy and safety of the procedure.

While understanding patient history, evaluating previous treatments, and estimating potential complications are all important facets of the overall care process, they do not directly relate to the specific purpose of a roadmap in neuroangiography. The primary function of the roadmap is to assist in the physical act of maneuvering the catheter within the neurovascular system, thereby increasing the likelihood of a successful intervention.