Carotid T - or L-type occlusion ( terminal internal carotid artery -LSB- ICA -RSB- with M@ middle cerebral artery and/or A@ anterior cerebral artery involvement ) or tandem ( extracranial or intracranial ) ICA and M@ occlusion subgroup also showed a trend favoring endovascular treatment over IV tPA alone for primary outcome ( @ % -LSB- @ of @ -RSB- vs @ % -LSB- one of @ -RSB- , P = @ ) .