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This Concept Map, created with IHMC CmapTools, has information related to: MRI ankle How we do it, Slice Thickness at 3 - 4mm, Dedicated Imaging Protocol optimized Scan Planes, Pathologies including Evaluation of occult fracture, small structures through Good Spatial Resolution, Bandwidth is kept medium to reduce Chemical shift artefact between cortical bone, cartilage and fibrocartilage, Pulse Sequences may include Spin Echo, (T1W, PDW) Fast Spin Echo (ETL must be kept low to avoid blurring) T2 (Long TE) used to asses effects of magic angle, Good Spatial Resolution affected by Field of View, Good Spatial Resolution affected by coil selection, Rarely requested exams in MSK imaging evaluating Pathologies, Good Spatial Resolution affected by Bandwidth, Imaging Matrix using 256 x 256 and higher allows in-plane resolution of less than 1mm, Use a narrow bandwidth (20.84kHz) together with Fat Suppression also useful in MSK to eliminate bright signal from fat and increase conspicuity of oedema, cartilage and free fluid, Pathologies including Infections and Tumours, Good Spatial Resolution affected by Magnet Strength The higher the better, Good Spatial Resolution affected by Imaging Matrix, Use a narrow bandwidth (20.84kHz) together with Fat Suppression obtained by either Frequency selective presaturation, or STIR (Short Tau Inversion Recovery), Rarely requested exams in MSK imaging requires Dedicated Imaging Protocol, Dedicated Imaging Protocol optimized Patient Positioning, Scan Planes includes axial sagittal coronal, Good Spatial Resolution affected by Slice Thickness