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Published in: Journal of Cardiovascular Magnetic Resonance 1/2017

Open Access 01-01-2017 | Research

Histologic validation of myocardial fibrosis measured by T1 mapping: a systematic review and meta-analysis

Authors: Kai-yue Diao, Zhi-gang Yang, Hua-yan Xu, Xi Liu, Qin Zhang, Ke Shi, Li Jiang, Lin-jun Xie, Ling-yi Wen, Ying-kun Guo

Published in: Journal of Cardiovascular Magnetic Resonance | Issue 1/2017

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Abstract

Background

Myocardial fibrosis is being increasingly recognised as a common final pathway of a wide range of diseases. Thus, the development of an accurate and convenient method to evaluate myocardial fibrosis is of major importance. Although T1 mapping is a potential alternative for myocardial biopsy, validation studies are limited to small numbers and vary regarding technical facets, and include only a restricted number of disease. A systematic review and meta-analysis was conducted to objectively and comprehensively evaluate the performance of T1 mapping on the quantification of myocardial fibrosis using cardiovascular magnetic resonance (CMR).

Methods

PubMed, EMBASE and the Cochrane Library databases were searched for studies applying T1 mapping to measure myocardial fibrosis and that validated the results via histological analysis. A pooled correlation coefficient between the CMR and histology measurements was used to evaluate the performance of the T1 mapping.

Results

A total of 15 studies, including 308 patients who had CMR and myocardial biopsy were included and the pooled correlation coefficient between ECV measured by T1 mapping and biopsy for the selected studies was 0.884 (95% CI: 0.854, 0.914) and was not notably heterogeneous chi-squared = 7.44; P = 0.489 for the Q test and I^2 = 0.00%).

Conclusions

The quantitative measurement of myocardial fibrosis via T1 mapping is associated with a favourable overall correlation with the myocardial biopsy measurements. Further studies are required to determine the calibration of the T1 mapping results for the biopsy findings of different cardiomyopathies.
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Metadata
Title
Histologic validation of myocardial fibrosis measured by T1 mapping: a systematic review and meta-analysis
Authors
Kai-yue Diao
Zhi-gang Yang
Hua-yan Xu
Xi Liu
Qin Zhang
Ke Shi
Li Jiang
Lin-jun Xie
Ling-yi Wen
Ying-kun Guo
Publication date
01-01-2017
Publisher
BioMed Central
Published in
Journal of Cardiovascular Magnetic Resonance / Issue 1/2017
Electronic ISSN: 1532-429X
DOI
https://doi.org/10.1186/s12968-016-0313-7

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