Age dependence of spleen- and muscle-corrected hepatic signal enhancement on hepatobiliary phase gadoxetate MRI

作者：Matoori Simon; Froehlich Johannes M; Breitenstein Stefan; Doert Aleksis; Pozdniakova Viktoria; Koh Dow Mu; Gutzeit Andreas^*

来源：European Radiology, 2016, 26(6): 1889-1894.

DOI：10.1007/s00330-015-3965-z

• MRI
• Gd-EOB-DTPA
• Patient age
• Liver
• Spleen

To identify correlations of signal enhancements (SE) and SE normalized to reference tissues of the spleen, kidney, liver, musculus erector spinae (MES) and ductus hepatocholedochus (DHC) on hepatobiliary phase gadoxetate-enhanced MRI with patient age in non-cirrhotic patients.
A heterogeneous cohort of 131 patients with different clinical backgrounds underwent a standardized 3.0-T gadoxetate-enhanced liver MRI between November 2008 and June 2013. After exclusion of cirrhotic patients, a cohort of 75 patients with no diagnosed diffuse liver disease was selected. The ratio of signal intensity 20 min post- to pre-contrast administration (SE) in the spleen, kidney, liver, MES and DHC, and the SE of the kidney, liver and DHC normalized to the reference tissues spleen or MES were compared to patient age.
Patient age was inversely correlated with the liver SE normalized to the spleen and MES SE (both p < 0.001) and proportionally with the SE of the spleen (p = 0.043), the MES (p = 0.030) and the kidney (p = 0.022). No significant correlations were observed for the DHC (p = 0.347) and liver SE (p = 0.606).
The age dependence of hepatic SE normalized to the enhancement in the spleen and MES calls for a cautious interpretation of these quantification methods.
aEuro cent Patient age was inversely correlated with spleen- and MES-corrected liver rSE (p < 0.001).
aEuro cent Patient age was correlated with spleen (p = 0.043) and MES SE (p = 0.030).
aEuro cent Patient age may confound quantitative liver function assessment using gadoxetate-enhanced liver MRI.

• 出版日期2016-6