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Fig 2. Images obtained in a 48-year-old man with SAH. A, 3D volume-rendered CTA image in frontal view shows a left-ruptured MCA bifurcation aneurysm. The relationship between the aneurysm neck and the MCA bifurcation branches is clearly seen on CTA images. B, Frontal projection from pre-embolization DSA, performed with contrast material injection into the left ICA, shows the same aneurysm as in A.
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