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Fig 4. A 57-year-old woman with grade II SAH from a middle cerebral artery aneurysm. A, Internal carotid angiogram shows wide-necked 7-mm middle cerebral artery aneurysm. B, Adequate placement of the first coil (7 x 21-mm Morpheus) with assistance of HyperForm 7-mm balloon. C, After deflation of the balloon, there was expansion of the coil with protrusion into the parent artery. This coil was withdrawn. D, Final result after balloon-assisted treatment with GDC 18 coils.
