CT Substitutes Derived from SPIRiT and CG-SENSE Reconstructed Images

Adam Johansson¹, Anders Garpebring¹, Tufve Nyholm¹

Substitute CT images derived from UTE MRI images can be used for attenuation correction and radiotherapy dose planning. However, the required scan time of six minutes for a FOV of 25 cm can be too long if multiple bed positions are needed. We investigate the quality of substitute CT images derived from images reconstructed with CG-SENSE and SPIRiT. A possible reduction in scan time from 6 min to 1 min is shown when scanning a head.