OptimaTM CT670, 64-kab 128-txheej kauv CT, sawv ua ib qho ntawm lub ntiaj teb cov khoom siv tshaj lij tshaj plaws, ua tiav qhov kev daws teeb meem hauv millimeter hauv kev nrhiav cov duab. Feem ntau, lub sij hawm nrhiav tau cov duab yuav siv li ntawm 0.5 vib nas this (rau ib tug tag nrho rotation scan). Lub sij hawm luam theej duab rau ib txheej tau raug txo mus rau qib thib ob, thaum lub sijhawm rov tsim kho cov duab luv luv li ib thib ob, yuav luag ncav cuag lub peev xwm ntawm lub sijhawm.
Qhov ntau dua cov kab hauv CT scanner, qhov zoo dua qhov kev daws teeb meem scan ntawm tib neeg lub cev, tso cai rau cov kws kho mob kom yooj yim pom cov kev hloov pauv hloov thaum ntxov. 64-kab 128-txheej CT yog qhov tseeb ntim CT, kov yeej cov teeb meem yav dhau los ntawm CT scanner hauv kev soj ntsuam uas tsis yog hla ntu, xws li cov nyhuv staircase thiab tsis meej ntawm cov qauv hloov maj mam. Nws tso cai rau kev soj ntsuam cov hlab ntsha ntawm cov hlab ntsha, ua kom yooj yim "peeling" thiab "pob txha tshem tawm" cov txheej txheem, thiab tso cai rau cov kws kho mob kom yooj yim txheeb xyuas cov kab mob me me li hauv qab 2 hli.