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Magnetic Resonance Materials in Physics, Biology and Medicine

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Open Access 18-04-2022 | Research Article

T2* assessment of the three coronary artery territories of the left ventricular wall by different monoexponential truncation methods

Authors: Pandji Triadyaksa, Jelle Overbosch, Matthijs Oudkerk, Paul Eduard Sijens

Published in: Magnetic Resonance Materials in Physics, Biology and Medicine | Issue 5/2022

Abstract

Objectives

This study aimed at evaluating left ventricular myocardial pixel-wise T2* using two truncation methods for different iron deposition T2* ranges and comparison of segmental T2* in different coronary artery territories.

Material and methods

Bright blood multi-gradient echo data of 30 patients were quantified by pixel-wise monoexponential T2* fitting with its R² and SNR truncation. T2* was analyzed at different iron classifications. At low iron classification, T2* values were also analyzed by coronary artery territories.

Results

The right coronary artery has a significantly higher T2* value than the other coronary artery territories. No significant difference was found in classifying severe iron by the two truncation methods in any myocardial region, whereas in moderate iron, it is only apparent at septal segments. The R² truncation produces a significantly higher T2* value than the SNR method when low iron is indicated.

Conclusion

Clear T2* differentiation between the three coronary territories by the two truncation methods is demonstrated. The two truncation methods can be used interchangeably in classifying severe and moderate iron deposition at the recommended septal region. However, in patients with low iron indication, different results by the two truncation methods can mislead the investigation of early iron level progression.

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Title: T2* assessment of the three coronary artery territories of the left ventricular wall by different monoexponential truncation methods
Authors: Pandji Triadyaksa
Jelle Overbosch
Matthijs Oudkerk
Paul Eduard Sijens
Publication date: 18-04-2022
Publisher: Springer International Publishing
Published in: Magnetic Resonance Materials in Physics, Biology and Medicine / Issue 5/2022
Print ISSN: 0968-5243
Electronic ISSN: 1352-8661
DOI: https://doi.org/10.1007/s10334-022-01008-4

Keynote webinar | Spotlight on medication adherence

Springer Medicine

T2* assessment of the three coronary artery territories of the left ventricular wall by different monoexponential truncation methods

Abstract

Objectives

Material and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objectives

Material and methods

Results

Conclusion

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