Table 1 MR-based attenuation correction methods with their sequence parameters and post-processing strategies

DIXON

Dixon

1.23/2.46

3.96

Fat/water segmentation (built-in)

[11]

BRAIN HiRes

Dixon

1.28/2.51

4.14

Fat/water/bone segmentation (built-in)

Segbone in [28]

UTE

UTE

0.07/2.46

4.64

Bone/tissue segmentation (built-in)

[29]

RESOLUTE

UTE

0.07/2.46

4.64

Continuous μ-map (offline)

[15]

PSEUDO-CT

MPRAGE

2.53

1900

Atlas-based (offline)

[16]

pCT

MPRAGE

2.53

1900

Atlas-based (offline)

[17], optimized

for accuracy