Standardized Evaluation of CT Angiography with Remote Generation of 3D Video Sequences for the Detection of Intracranial Aneurysms

Figure S1a. Screen shot from the main video sequence shows the superoinferior view. Three more videos containing a central and two lateral subvolumes (white rectangles) were created to allow a detailed analysis of the anterior communicating artery, the ICAs, and both MCAs. Two aneurysms (arrows) of the left ICA are seen.
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Figure S1b. Central subvolume shown in the posterosuperior view. The two aneurysms (arrows) are visible without overlying structures.
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Figure S1c. Left lateral subvolume in the superoinferior view provides an open view of the MCA bifurcation (arrowhead). The two aneurysms (arrows) of the ICA are also demonstrated. The right lateral subvolume showed normal findings in this patient.
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Figure S2a. A total of four aneurysms are demonstrated on this screenshot on a right latero-superior view. Two aneurysms are located at the bifurcations of the MCAs (arrows); two more aneurysms are demonstrated on both bifurcations of the ICAs, including a very small aneurysm about 2 mm in diameter (arrowheads) on the left.
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Figure S2b. The small ICA bifurcation aneurysm on the left (arrow) is hardly visible on the anteroposterior digital subtraction angiogram.

Figure S3a. DSA in the left lateral view demonstrates a small intracavernous aneurysm (arrow) of the ICA.

Figure S3b. Screen shot from the central video sequence in the left lateral view. The aneurysm (arrow) is covered by the anterior clinoid process.
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Figure S3c. A thin-section (10 mm) MIP in the left lateral view shows the aneurysm (arrow) after removal of the clinoid process.

Figure S4a. Three-dimensional representation in the superoinferior view of a large aneurysm (arrow) of the left ICA involving the skull base. The relation of the aneurysm to the ICA is unclear.
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Figure S4b. Superoinferior section image from CT angiography at the level of the carotid siphon better demonstrates the relation of the aneurysm sac (arrowhead) to the ICA (arrow).

Figure S4c. The large aneurysm (arrow) of the right ICA is demonstrated with DSA in a frontal view.

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