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. 2018 Nov 29;477(5):990–1003. doi: 10.1097/CORR.0000000000000593

Fig. 3.

Fig. 3

The biochemical MRI protocol included a 3-D dGEMRIC sequence and a 2-D radial T2 sequence for qualitative assessment of hip cartilage. A 2-D radial proton density (PD)-weighted morphologic sequence that enables good differentiation of the cartilage layers was acquired for placement of ROIs. To eliminate variations of repeated measurements, dGEMRIC and T2 images were coregistered on the morphologic images. Thus, placement of ROIs on the morphologic images enabled us to measure dGEMRIC and T2 values of identical cartilage areas.