Amide signal intensities may be reduced in the motor cortex and the corticospinal tract of ALS patients
Objectives The aim of the study is to assess amide concentration changes in ALS patients compared with healthy controls by using quantitative amide proton transfer (APT) and multiparameter magnetic resonance imaging, and testing its correlation with clinical scores. Methods Sixteen ALS patients and...
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Veröffentlicht in: | European radiology 2021-03, Vol.31 (3), p.1401-1409 |
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Sprache: | eng |
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Zusammenfassung: | Objectives
The aim of the study is to assess amide concentration changes in ALS patients compared with healthy controls by using quantitative amide proton transfer (APT) and multiparameter magnetic resonance imaging, and testing its correlation with clinical scores.
Methods
Sixteen ALS patients and sixteen healthy controls were recruited as part of the Canadian ALS Neuroimaging Consortium, and multimodal magnetic resonance imaging was performed at 3 T, including APT and diffusion imaging. Lorentz fitting was used to quantify the amide effect. Clinical disability was evaluated using the revised ALS functional rating scale (ALSFRS-R), and its correlation with image characteristics was assessed. The diagnostic performance of different imaging parameters was evaluated with receiver operating characteristic analysis.
Results
Our results showed that the amide peak was significantly different between the motor cortex and other gray matter territories within the brain of ALS patients (
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ISSN: | 0938-7994 1432-1084 |
DOI: | 10.1007/s00330-020-07243-4 |