Abstract
BackgroundWe describe on a 57-year-old man with an incidental middle cerebral artery (MCA) aneurysm in whom a preoperative standard three-dimensional rotational angiogram (3D-RA) was used to depict luminal morphology along with 3D density rendering to precisely locate aneurysm wall calcification. MethodsTo detect aneurysm calcification, a native 3D rotational angiogram was acquired for calcium density visualization, followed by an intraarterial contrast-enhanced 3D rotational angiogram in the same location. Both data sets were postprocessed obtaining a 3D calcium volume rendering on a 3D-RA. ResultsDepiction of both the MCA luminal aneurysm morphology as well as calcium-rich components in the aneurysm wall was valuable to determine treatment strategy towards surgery. ConclusionImaging of luminal morphology and calcification within the same angiographic procedure allows for a plain and simple estimation of the degree and distribution of brain aneurysm wall calcification with limited amount of additional radiation dosage.
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