A magnetic resonance imaging system for acquiring magnetic resonance data (142, 148, 158) from a subject within an imaging zone, wherein the magnetic resonance imaging system comprises: - a memory (134, 136) for storing machine executable instructions (162, 164, 166, 168) and pulse sequence data being descriptive of a pulse sequence for controlling the magnetic resonance imaging system to acquire the magnetic resonance data, wherein the pulse sequence data controls the magnetic resonance imaging system to acquire the magnetic resonance data as a multiple slice acquisition performed over multiple repetition cycles; and - a processor for controlling the magnetic resonance imaging system, wherein execution of the instructions cause the processor to: • acquire a first slice group of the magnetic resonance data during a first repetition cycle using the pulse sequence data; • extract first central k-space data from the first slice group; • reconstruct first navigator data as a first three-dimensional navigator in image space using the first central k-space data; wherein execution of the instructions causes the processor to repeatedly: • acquire a subsequent slice group of the magnetic resonance data during a subsequent repetition cycle using the pulse sequence data; • extract subsequent central k-space data from the subsequent slice group; • reconstruct subsequent navigator data as a subsequent three-dimensional navigator in image space using the subsequent central k-space data; • determining a mapping from the first navigator data to the subsequent navigator data by performing a three-dimensional transformation between the first navigator data and the subsequent navigator data; and • correct the acquisition of a next slice group of the magnetic resonance data using the mapping. - a memory (134, 136) for storing machine executable instructions (162, 164, 166, 168) and pulse sequence data being descriptive of a pulse sequence for controlling the magnetic resonance imaging system to acquire the magnetic resonance data, wherein the pulse sequence data controls the magnetic resonance imaging system to acquire the magnetic resonance data as a multiple slice acquisition performed over multiple repetition cycles; and - a processor for controlling the magnetic resonance imaging system, wherein execution of the instructions cause the processor to: • acquire a first slice group of the magnetic resonance data during a first repetition cycle using the pulse sequence data; • extract first central k-space data from the first slice group; • reconstruct first navigator data as a first three-dimensional navigator in image space using the first central k-space data; wherein execution of the instructions causes the processor to repeatedly: • acquire a subsequent slice group of the magnetic resonance data during a subsequent repetition cycle using the pulse sequence data; • extract subsequent central k-space data from the subsequent slice group; • reconstruct subsequent navigator data as a subsequent three-dimensional navigator in image space using the subsequent central k-space data; • determining a mapping from the first navigator data to the subsequent navigator data by performing a three-dimensional transformation between the first navigator data and the subsequent navigator data; and • correct the acquisition of a next slice group of the magnetic resonance data using the mapping. • acquire a first slice group of the magnetic resonance data during a first repetition cycle using the pulse sequence data; • extract first central k-space data from the first slice group; • reconstruct first navigator data as a first three-dimensional navigator in image space using the first central k-space data; • acquire a subsequent slice group of the magnetic resonance data during a subsequent repetition cycle using the pulse sequence data; • extract subsequent central k-space data from the subsequent slice group; • reconstruct subsequent navigator data as a subsequent three-dimensional navigator in image space using the subsequent central k-space data; • determining a mapping from the first navigator data to the subsequent navigator data by performing a three-dimensional transformation between the first navigator data and the subsequent navigator data; and • correct the acquisition of a next slice group of the magnetic resonance data using the mapping.