Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2020
Potential of Liver T1 Mapping for the Detection of Fontan-associated Liver Disease in Adults.
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Shiina Yumi, Inai Kei, Ohashi Ryoko, Nagao Michinobu
Аннотация
PURPOSE: The native T1 value at 3T MRI is a sensitive marker for diffuse fibrosis or damage in various organs including the heart, liver, and pancreas. Despite the fact that Fontan-associated liver disease (FALD) is a crucial issue in adults with Fontan circulation, there are only a few studies with liver T1 mapping in children and adolescents. We investigated the potential of the liver native T1 mapping in detecting FALD in adult patients.
METHODS: We prospectively enrolled 16 consecutive adults with Fontan circulation (age 31.3 ± 8.5 years), who were in New York Heart Association Functional class II-IV. Twenty with tetralogy of Fallot (TOF), and 20 age-matched controls also underwent cardiac magnetic resonance (CMR) imaging at 3T. Myocardial T1 mapping with a Modified Look-Locker Inversion recovery sequence was applied to liver T1 mapping. Patients in the Fontan group underwent the right heart catheter and liver function tests, including those for fibrotic markers.
RESULTS: Liver native T1 values in the Fontan group were significantly higher than that in TOF and controls (P < 0.001). In the Fontan group, the liver native T1 value was significantly correlated with age, γ-glutamyltransferase, model for end-stage liver disease XI score, and albumin-bilirubin score (P = 0.01, 0.01, 0.044, 0.001). However, it demonstrated no correlation with central venous pressure, pulmonary vessel resistance, or fibrotic markers.
CONCLUSION: Liver native T1 value derived from CMR may be a non-invasive adjunctive and/or screening marker to detect FALD.
METHODS: We prospectively enrolled 16 consecutive adults with Fontan circulation (age 31.3 ± 8.5 years), who were in New York Heart Association Functional class II-IV. Twenty with tetralogy of Fallot (TOF), and 20 age-matched controls also underwent cardiac magnetic resonance (CMR) imaging at 3T. Myocardial T1 mapping with a Modified Look-Locker Inversion recovery sequence was applied to liver T1 mapping. Patients in the Fontan group underwent the right heart catheter and liver function tests, including those for fibrotic markers.
RESULTS: Liver native T1 values in the Fontan group were significantly higher than that in TOF and controls (P < 0.001). In the Fontan group, the liver native T1 value was significantly correlated with age, γ-glutamyltransferase, model for end-stage liver disease XI score, and albumin-bilirubin score (P = 0.01, 0.01, 0.044, 0.001). However, it demonstrated no correlation with central venous pressure, pulmonary vessel resistance, or fibrotic markers.
CONCLUSION: Liver native T1 value derived from CMR may be a non-invasive adjunctive and/or screening marker to detect FALD.