A magnetic resonance imaging system for acquiring magnetic resonance data from an imaging zone, wherein the magnetic resonance imaging system comprises: - a radio-frequency system (122, 124) for acquiring the magnetic resonance data, wherein the radio-frequency system comprises a magnetic resonance antenna with multiple antenna elements (126, 126', 126", 126'''), hereinafter also referred to as coils or coil elements; - a processor for controlling the magnetic resonance imaging system; and - a memory (138, 140) containing pulse sequence data, a set of coil sensitivities for the multiple antenna elements, and machine executable instructions (160, 162, 164); wherein the pulse sequence data is configured to cause the processor to acquire the magnetic resonance data as multiple blades (144, 144') of magnetic resonance data according to a PROPELLER magnetic resonance imaging protocol; wherein the pulse sequence data is further configured such that each of the multiple blades of magnetic resonance data comprises coil specific magnetic resonance data (146, 146', 146", 146"') acquired for each of the multiple antenna elements simultaneously; wherein execution of the machine executable instructions causes the processor to acquire the multiple blades of magnetic resonance data using the pulse sequence data to control the magnetic resonance imaging system; and wherein execution of the machine executable instructions further causes the processor to perform the following for each of the multiple blades of magnetic resonance data: - reconstruct a blade image (150, 150') from the coil specific magnetic resonance data of all of the multiple antenna elements according to a parallel imaging magnetic resonance imaging protocol, - construct a Chi map (154, 154') for the blade image using the set of coil sensitivities, the blade image, and the coil specific magnetic resonance data, wherein the Chi map comprises a voxel for each voxel in the blade image, wherein each voxel of the Chi map is descriptive of the probability that the voxel of the blade image contains an artifact and, wherein execution of the instructions further cause the processor to reconstruct a measured coil image (148, 148', 148", 148''') for each of the multiple antenna elements from the coil specific magnetic resonance data, wherein execution of the machine executable instruction further cause the processor to construct a reference coil image (152, 152', 152", 152"') for each of the multiple antenna elements by backfolding the blade image using the set of coil sensitivities, and wherein the Chi map is constructed for the blade image by taking a norm of the difference between the measured coil image and the reference coil image for each of the multiple antenna elements. - a radio-frequency system (122, 124) for acquiring the magnetic resonance data, wherein the radio-frequency system comprises a magnetic resonance antenna with multiple antenna elements (126, 126', 126", 126'''), hereinafter also referred to as coils or coil elements; - a processor for controlling the magnetic resonance imaging system; and - a memory (138, 140) containing pulse sequence data, a set of coil sensitivities for the multiple antenna elements, and machine executable instructions (160, 162, 164); wherein the pulse sequence data is configured to cause the processor to acquire the magnetic resonance data as multiple blades (144, 144') of magnetic resonance data according to a PROPELLER magnetic resonance imaging protocol; wherein the pulse sequence data is further configured such that each of the multiple blades of magnetic resonance data comprises coil specific magnetic resonance data (146, 146', 146", 146"') acquired for each of the multiple antenna elements simultaneously; - reconstruct a blade image (150, 150') from the coil specific magnetic resonance data of all of the multiple antenna elements according to a parallel imaging magnetic resonance imaging protocol, - construct a Chi map (154, 154') for the blade image using the set of coil sensitivities, the blade image, and the coil specific magnetic resonance data, wherein the Chi map comprises a voxel for each voxel in the blade image, wherein each voxel of the Chi map is descriptive of the probability that the voxel of the blade image contains an artifact and, wherein execution of the instructions further cause the processor to reconstruct a measured coil image (148, 148', 148", 148''') for each of the multiple antenna elements from the coil specific magnetic resonance data, wherein execution of the machine executable instruction further cause the processor to construct a reference coil image (152, 152', 152", 152"') for each of the multiple antenna elements by backfolding the blade image using the set of coil sensitivities, and wherein the Chi map is constructed for the blade image by taking a norm of the difference between the measured coil image and the reference coil image for each of the multiple antenna elements.