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Fig. 4 | EJNMMI Physics

Fig. 4

From: Evaluating different methods of MR-based motion correction in simultaneous PET/MR using a head phantom moved by a robotic system

Fig. 4

Framework for reconstruction of equidistant frames using MCFLIRT. (1) The PET data was split into frames and reconstructed by the manufacturer software (Siemens). (2) The MR data (EPI) were spatially and temporally adapted to the PET data. EPI data were interpolated by miconv (ODIN [35]) which uses an Akima spline [40] for this purpose. (3) MCFLIRT was executed based on the adapted EPI data. (4) The resulting transformation matrices are then applied to the PET frames. (5) Finally, all motion-corrected frames are summed

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