Fig 2.
Examples of coils (300 micron diameter) within the exemplar basilar aneurysm; A) the circular loop configuration; B) the planar spiral configuration; C) the spherical helix configuration; only half of the spherical helix coil is shown for visual clarity. Also for visual clarity, only half of the aneurysm surface is shown and the diameter of the coils is halved; entire aneurysm volume is filled with such coils but all the coils are not shown.