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Table 2 Imaging protocol and timeline of PET-MRI and PET-CT (T = approximate time in minutes)

From: The use of PET-MRI in the follow-up after radiofrequency- and microwave ablation of colorectal liver metastases

T = 0

Injection FDG

 

T = 5

Start MRI

Axial T2-weighted imaging

  

T1 in- and opposed phase GRE

  

Diffusion-weighted imaging

  

Fat-suppressed T1-weighted eThrive (contrast enhanced)

- pre-contrast

- arterial phase (bolus tracking)

- portovenous phase (70 sec delay)

- late venous phase (200 sec delay)

  

Attenuation sequence (skullbase – midthigh)

  

Whole body T1-weighted mDixon (skullbase – midthigh)

T = 60

 

PET skullbase – midthigh

T = 75

End PET-MRI

Transfer to PET-CT

T = 95

Start PET-CT

PET skullbase – midthigh

low dose CT

4-phase CT liver

- pre-contrast

- arterial phase (bolus tracking)

- portovenous phase (70 sec delay)

- late venous phase (240 sec delay)

T = 145

End PET-CT

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