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Abstract #1665

CT Substitutes Derived from SPIRiT and CG-SENSE Reconstructed Images

Adam Johansson1, Anders Garpebring1, Tufve Nyholm1

1Department of Radiation Sciences, Ume University, Ume, Sweden

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.