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FIG 3. Giant unruptured aneurysm originating from the bifurcation of the right ophthalmic artery.
A, DSA image, oblique projection, right internal carotid injection 4 months after treatment, shows the aneurysm is subtotally packed with electrolytically detachable coils. A remnant cavity (arrowheads) is seen in the neck area.
B, MR angiogram, targeted coronal MIP reconstruction, shows scattered high signal intensity in the upper part of the aneurysm (small arrows) in addition to the remnant cavity flow (large arrow) in the neck area.
C, T1-weighted MR image, sagittal view, shows high signal intensity in the upper part of the coiled aneurysm (arrows), which does not represent flow but T1 shortening caused by thrombosis between the coil material.
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