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. Author manuscript; available in PMC: 2018 Apr 21.
Published in final edited form as: Phys Med Biol. 2017 Mar 17;62(8):2922–2934. doi: 10.1088/1361-6560/aa5059

Figure 3.

Figure 3

The Dixon T1-weighted, water, fat, and the magnitude of the gradient of the fat image (A) were used as inputs to generate the FCM class probabilities mid-density, lower-density, bone and marrow (B). The |grad(Fat)| image was only used for classification inside the segmented bone volume. Similarly, the bone and marrow classes were constrained to exist only within the segmented volume.