Table 6 The median \(\delta _{Q}\) values are listed in % for each volunteer and slice position. The uncorrected deviations are compared to the normalized deviations using the best perfusion ROI (ROI 5). The median volunteer \(\varvec{\delta }_{Q}\) for both slices and the combined scans are also presented.

From: Ventilation and perfusion MRI at a 0.35 T MR-Linac: feasibility and reproducibility study