CT is not much faster than a quick T1 and T2 from a portable MRI these days. By the time you transport to the CT suite, set them up, run the scout, etc., you could have acquired the MR bedside.

Edit: To add some clarity, portable MR systems are low field, so that means the scans will be lower SNR and resolution, which are much faster to acquire. I think it would also rule out diffusion scans, since those require high gradients. MR acquisitions are also much faster nowadays due to compressed sensing and deep learning reconstructions.