CT scanners use slip-ring technology, which was introduced in 1989. Slip-ring scanners can perform helical CT scanning, in which the x-ray tube and detector rotate around the patient's body, continuously acquiring data while the patient moves through the gantry.

What is slip ring technology in CT scan?

Slip-ring functions to allow the transfer of electrical information and power between a rotating device and external components. They are used in helical CT and MRI scanners among other applications; in this setting, they allow image acquisition without progressive twisting of cables as the scanner rotates.

Why are slip rings used in CT scans?

Slip rings are used to transfer the necessary electrical energy to the rotating gantry and to transmit the measured data from the rotating part to the computer system; the cables that were used traditionally in CT scanners and which limited scanning to single 360° turns (alternating in clockwise and counterclockwise ...