ʻO ka CT scanner kahi mea hana pono e ʻike ai i nā maʻi. He ʻano hana kiʻi lāʻau ia e hoʻohana ana i nā hui i hoʻopili ʻia e ka lolouila o nā ana X-ray he nui i lawe ʻia mai nā kihi like ʻole e hana i nā kiʻi tomographic (cross-sectional) kiʻi (virtual 'slices') o ke kino, e ʻae i ka mea hoʻohana e ʻike i loko o ke kino me ka ʻoki ʻole.