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Hepatobiliary MRI: Signal intensity based assessment of liver function correlated to 13 C-Methacetin breath test
Ist Teil von
Scientific reports, 2018-06, Vol.8 (1), p.9078
Ort / Verlag
England
Erscheinungsjahr
2018
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
Gadoxetic acid (Gd-EOB-DTPA) is a paramagnetic MRI contrast agent with raising popularity and has been used for evaluation of imaging-based liver function in recent years. In order to verify whether liver function as determined by real-time breath analysis using the intravenous administration of
C-methacetin can be estimated quantitatively from Gd-EOB-DTPA-enhanced MRI using signal intensity (SI) values. 110 patients underwent Gd-EOB-DTPA-enhanced 3-T MRI and, for the evaluation of liver function, a
C-methacetin breath test (
C-MBT). SI values from before (SI
) and 20 min after (SI
) contrast media injection were acquired by T1-weighted volume-interpolated breath-hold examination (VIBE) sequences with fat suppression. The relative enhancement (RE) between the plain and contrast-enhanced SI values was calculated and evaluated in a correlation analysis of
C-MBT values to SI
and RE to obtain a SI-based estimation of
C-MBT values. The simple regression model showed a log-linear correlation of
C-MBT values with SI
and RE (p < 0.001). Stratified by 3 different categories of
C-MBT readouts, there was a constant significant decrease in both SI
(p ≤ 0.002) and RE (p ≤ 0.033) with increasing liver disease progression as assessed by the
C-MBT. Liver function as determined using real-time
C-methacetin breath analysis can be estimated quantitatively from Gd-EOB-DTPA-enhanced MRI using SI-based indices.
Sprache
Englisch
Identifikatoren
eISSN: 2045-2322
Titel-ID: cdi_pubmed_primary_29899400
Format
–
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