3D Rotational Angiography in Follow-Up of Clipped Intracranial Aneurysms
Figure 4
Varying visibility of the artery, aneurysm, and clips in different reconstruction techniques: (a) surface shaded display—clear visualization of the artery and multiple clips is difficult (dotted oval) and any chance of picking a small aneurysm residue is less likely, (b) transparent volume rendering—almost similar appearance, although the parent artery is visualised partially in the region of the clips, (c) two-color coils and clips—there is good visualisation of the parent artery (multiple small arrows) and the clips can be made out separately, (d) maximum intensity projection—best differentiation and visualization offered in this particular case; the entire length of the artery is well visualized (dotted freehand line over the artery), all the clips are clearly seen, and a small aneurysm neck is visualised (curved arrow).
