I-OptimaTM CT670, i-CT ye-64-row 128-layer spiral spiral, ime njengomunye wemishini yokuthwebula ethuthuke kakhulu emhlabeni, efinyelela ukulungiswa kwe-sub-millimeter ekutholweni kwesithombe. Ngokuvamile, isikhathi sokutholwa kwesithombe sithatha cishe imizuzwana engu-0.5 (ukuskena okugcwele kokuzungezisa). Isikhathi sokuskena sesendlalelo esisodwa sehliselwe ezingeni lesibili elingaphansi, kuyilapho isikhathi sokwakha kabusha isithombe sisifishane njengesekhondi elilodwa, sicishe sifinyelele emandleni wokuthwebula wesikhathi sangempela.
Uma sikhulu inani lemigqa kusithwebuli se-CT, kulapho kucaca khona kahle ukuskena emzimbeni womuntu, okuvumela odokotela ukuthi bathole kalula izinguquko zesigaba sangaphambi kwesikhathi. I-CT enemigqa engu-64 engu-128-layer iyivolumu yangempela ye-CT, inqoba izithiyo zangaphambilini zesithwebuli se-CT ekubonweni okungezona okuphambene nesigaba, njengomphumela wezitebhisi nokuboniswa okungacacile kwezakhiwo ezicashile. Inika amandla ukubonwa kwemithambo yegazi enezilonda, yenze kube lula "ukucwecwa" kanye "nokususwa kwamathambo", futhi ivumela odokotela ukuthi babone kalula izilonda njengezincane ezingaphansi kuka-2mm.