Skip to main content
Top
Published in: European Radiology 1/2020

Open Access 01-01-2020 | Magnetic Resonance Imaging | Cardiac

Early detection of heart function abnormality by native T1: a comparison of two T1 quantification methods

Authors: Pandji Triadyaksa, Dirkjan Kuijpers, Tugba Akinci D’Antonoli, Jelle Overbosch, Mieneke Rook, J. Martijn van Swieten, Matthijs Oudkerk, Paul E. Sijens

Published in: European Radiology | Issue 1/2020

Login to get access

Abstract

Objective

To compare the robustness of native T1 mapping using mean and median pixel-wise quantification methods.

Methods

Fifty-seven consecutive patients without overt signs of heart failure were examined in clinical routine for suspicion of cardiomyopathy. MRI included the acquisition of native T1 maps by a motion-corrected modified Look-Locker inversion recovery sequence at 1.5 T. Heart function status according to four established volumetric left ventricular (LV) cardio MRI parameter thresholds was used for retrospective separation into subgroups of normal (n = 26) or abnormal heart function (n = 31). Statistical normality of pixel-wise T1 was tested on each myocardial segment and mean and median segmental T1 values were assessed.

Results

Segments with normally distributed pixel-wise T1 (57/58%) showed no difference between mean and median quantification in either patient group, while differences were highly significant (p < 0.001) for the respective 43/42% non-normally distributed segments. Heart function differentiation between two patient groups was significant in 14 myocardial segments (p < 0.001–0.040) by median quantification compared with six (p < 0.001–0.042) by using the mean. The differences by median quantification were observed between the native T1 values of the three coronary artery territories of normal heart function patients (p = 0.023) and insignificantly in the abnormal patients (p = 0.053).

Conclusion

Median quantification increases the robustness of myocardial native T1 definition, regardless of statistical normality of the data. Compared with the currently prevailing method of mean quantification, differentiation between LV segments and coronary artery territories is better and allows for earlier detection of heart function impairment.

Key Points

Median pixel-wise quantification of native T1 maps is robust and can be applied regardless of the statistical distribution of data points.
Median quantification is more sensitive to early heart function abnormality compared with mean quantification.
The new method yields significant native T1 value differentiation between the three coronary artery territories.
Appendix
Available only for authorised users
Literature
7.
21.
go back to reference Saiviroonporn P, Viprakasit V, Boonyasirinant T, Khuhapinant A, Wood JC, Krittayaphong R (2011) Comparison of the region-based and pixel-wise methods for cardiac T2* analysis in 50 transfusion-dependent Thai thalassemia patients. J Comput Assist Tomogr 35:375–381. https://doi.org/10.1097/RCT.0b013e31820eaaf2 Saiviroonporn P, Viprakasit V, Boonyasirinant T, Khuhapinant A, Wood JC, Krittayaphong R (2011) Comparison of the region-based and pixel-wise methods for cardiac T2* analysis in 50 transfusion-dependent Thai thalassemia patients. J Comput Assist Tomogr 35:375–381. https://​doi.​org/​10.​1097/​RCT.​0b013e31820eaaf2​
24.
go back to reference Roller FC, Kriechbaum S, Breithecker A et al (2019) Correlation of native T1 mapping with right ventricular function and pulmonary haemodynamics in patients with chronic thromboembolic pulmonary hypertension before and after balloon pulmonary angioplasty. Eur Radiol 29:1565–1573CrossRef Roller FC, Kriechbaum S, Breithecker A et al (2019) Correlation of native T1 mapping with right ventricular function and pulmonary haemodynamics in patients with chronic thromboembolic pulmonary hypertension before and after balloon pulmonary angioplasty. Eur Radiol 29:1565–1573CrossRef
31.
go back to reference Messroghli DR, Moon JC, Ferreira VM et al (2017) Clinical recommendations for cardiovascular magnetic resonance mapping of T1, T2, T2* and extracellular volume: a consensus statement by the Society for Cardiovascular Magnetic Resonance (SCMR) endorsed by the European Association for Cardiovascular Imaging (EACVI). J Cardiovasc Magn Reson 19:75. https://doi.org/10.1186/s12968-017-0389-8 CrossRefPubMedPubMedCentral Messroghli DR, Moon JC, Ferreira VM et al (2017) Clinical recommendations for cardiovascular magnetic resonance mapping of T1, T2, T2* and extracellular volume: a consensus statement by the Society for Cardiovascular Magnetic Resonance (SCMR) endorsed by the European Association for Cardiovascular Imaging (EACVI). J Cardiovasc Magn Reson 19:75. https://​doi.​org/​10.​1186/​s12968-017-0389-8 CrossRefPubMedPubMedCentral
43.
go back to reference Shao J, Liu D, Sung K, Nguyen KL, Hu P (2017) Accuracy, precision, and reproducibility of myocardial T1 mapping: a comparison of four T1 estimation algorithms for modified look-locker inversion recovery (MOLLI). Magn Reson Med 78:1746–1756. https://doi.org/10.1002/mrm.26565 Shao J, Liu D, Sung K, Nguyen KL, Hu P (2017) Accuracy, precision, and reproducibility of myocardial T1 mapping: a comparison of four T1 estimation algorithms for modified look-locker inversion recovery (MOLLI). Magn Reson Med 78:1746–1756. https://​doi.​org/​10.​1002/​mrm.​26565
Metadata
Title
Early detection of heart function abnormality by native T1: a comparison of two T1 quantification methods
Authors
Pandji Triadyaksa
Dirkjan Kuijpers
Tugba Akinci D’Antonoli
Jelle Overbosch
Mieneke Rook
J. Martijn van Swieten
Matthijs Oudkerk
Paul E. Sijens
Publication date
01-01-2020
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 1/2020
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-019-06364-9

Other articles of this Issue 1/2020

European Radiology 1/2020 Go to the issue