Benefits of 3D Rotational DSA Compared with 2D DSA in the Evaluation of Intracranial Aneurysm

Three-dimensional DSA improves the detection and delineation of intracranial aneurysms, with lower radiation dose, less contrast use, and shorter procedural time compared to 2D DSA. The size of the aneurysm neck on 3D DSA tended to be larger than on 2D DSA.