FIG 2. Digital subtraction angiogram, selective study of the right internal carotid artery, arterial phase, lateral projection. After treatment with a single detachable coil, the aneurysmal cavity is totally excluded from the cerebral circulation (arrows).

FIG 3. Transcranial Doppler sonogram, right transtemporal approach. Before treatment, a color Doppler signal is seen within the aneurysmal cavity (arrow). It also shows the typical "yin- yang" appearance, corresponding to the inflow and outflow regions of the aneurysm.