Table 2.

Summary of the advantages and disadvantages of the AC approaches (Izquierdo‐Garcia & Catana, 2016)

MR‐based methods	Atlas‐based methods	PET‐based methods
Advantages
‐ Easy implementation ‐ Low computational cost ‐ Whole‐body applicability	‐ Bone identification ‐ Continuous LACs ‐ Noise, bias	‐ Robust to artefacts ‐ MR time for clinical use ‐ Whole‐body applicability
Disadvantages
‐ Bone/air segmentation ‐ Discrete LACs ‐ Noise, bias	‐ High computational cost ‐ Subject‐specific variability ‐ Whole‐body application	‐ High computational cost ‐ Accuracy ‐ Extended acquisition time what caused higher exposition