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Imaging findings will be determined not only by the time since injury but also on associated tissue status, e.g. where on the spectrum of osseous remodelling the patient is. Depending upon the modality being used and the patient's signalment and anamnesis, the response to a negative study will vary. This may lead to repeat imaging at a later time point or utilizing a different modality. The observer must take an active role in the assessment of risk to the patient that a negative study affords and the level of rigour that should be applied for additional or different imaging.

Figure 5.1 T1W 3D dorsal plane standing MRI images of a front foot. (a) With a slice thickness of 3 mm. (b) With a slice thickness of 0.7 mm. The narrower slice thickness produces a decrease in SNR with resultant image degradation.