The patient has three brain aneurysms. Two originate from the supraclinoid portion of the right internal carotid artery, the other, from the basilar artery.
The original trans axial section 74 slice Toshiba Helical CT data set of a patient with multiple cerebral aneurysms. Isoview 300 was the contrast used. The volumetric data acquisition of 3.5 cm thickness included the region of the Circle of Willis. The 74 images of 1mm slice thickness were generated using a 180 degree interpolation algorithm with a 0.5 mm pitch.
Shaded Surface Display (SSD) of two aneurysms originating from the supraclinoid portion of the right internal carotid artery. In this movie, you can see both internal carotid, middle cerebral, and anterior cerebral arteries. Rotation is about the intersection of a coronal and sagital plane (y-axis).
Maximum Intensity Projections (MIP) of two right internal carotid artery aneurysms. In this movie, you can see both internal carotid, middle cerebral, and anterior cerebral arteries. Rotation is about the intersection of a coronal and sagital plane (y-axis).
Maximum Intensity Projections (MIP) of two right internal carotid artery aneurysms. In this movie, you can see only the right carotid artery and middle cerebral artery which allows for rotation without superimposition of the vessels. Rotation is about the intersection of a coronal and sagital plane (y-axis).
Maximum Intensity Projections (MIP) of a basilar artery aneurysm showing the right superior cerebellar artery clearly originating from the aneurysm itself. In this movie, you can see the basilar, superior cerebellar, and posterior cerebral arteries. Rotation is about the intersection of a coronal and sagital plane (y-axis).
Maximum Intensity Projections (MIP) of the right cerebral hemisphere after dimming the bone. Dimming the bone allows one to view the arteries and rotate the projections without obstruction by the bone. Rotation is about the left-right axis. The movie starts from an axial view and moves to a coronal (x-axis rotation).
Maximum Intensity Projections (MIP) of the right cerebral hemisphere after dimming the bone. Dimming the bone allows one to view the arteries and rotate the projections without obstruction by the bone. Rotation is about the intersection of a coronal and sagital plane (y-axis).
Maximum Intensity Projections (MIP) of the right cerebral hemisphere showing the bone and a metal clip on the right middle cerebral artery. Rotation is about the intersection of a coronal and sagital plane (y-axis).
