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FIG 4. Case 8, a 67-year-old-woman with a middle cerebral artery aneurysm.
A, Digital subtraction angiogram (DSA), anteroposterior projection, shows the aneurysm (AN) and parent arteries. M2-s indicates the superior branch of the second segment of the right middle cerebral artery; M2-i, inferior branch of the right middle cerebral artery; M1, the first segment of the middle cerebral artery.
B, Reconstructed coronal image of MR cisternography (MRC) with MR signal intensity histogram shows the aneurysmal complex and surrounding superficial veins. AN indicates aneurysm; M2, second segment of the middle cerebral artery; SV, superficial middle cerebral veins.
C, Source axial image of MRC, superoinferior projection, shows a view position (encircled arrow) for 3D MRC in D. SV indicates superficial middle cerebral vein.
D, 3D MRC, left anteroinferior projection, viewed from the sphenoidal compartment of the deep sylvian fissure as indicated in C, shows the spatial relationship of the aneurysm (AN), temporal lobe (TL), and superficial middle cerebral veins (SV). Arrowheads indicate contact of the dome with the adjacent temporal lobe; M1, first segment of the middle cerebral artery; M2, second segment of the middle cerebral artery.
E, 3D MR angiogram (MRA), coordinated projection as to the 3D MRC in D, shows the arterial components of the aneurysmal complex.
F, Fusion image of the 3D MRC and MRA shows a part of the dome contact with the adjacent temporal lobe (arrowheads).
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