Fig 1.

A, A 51-year-old man with a symptomatic middle cerebral artery stenosis. B, After percutaneous transluminal angioplasty and application of a Wingspan stent (Boston Scientific, Natick, Massachusetts), DSA depicts the successful vessel reconstruction. C, Stent conformity and deployment are displayed on 3D reconstructions after postprocessing the same volume dataset that provided us with the ACT. The postinterventional ACT (D) shows an SAH and contrast-agent accumulation primarily in the right lateral sulcus. MDCT (E) verifies this finding. The supratentorial ventricular system can be sufficiently evaluated in both examinations. The old right anterior cerebral artery infarction can be diagnosed on MDCT (E) but is undetectable on the ACT examination (D). F, Follow-up MDCT after 3 days shows complete resolution of SAH.