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Erschienen in: Neuroradiology 12/2017

11.10.2017 | Diagnostic Neuroradiology

Quantitative susceptibility mapping of the motor cortex: a comparison of susceptibility among patients with amyotrophic lateral sclerosis, cerebrovascular disease, and healthy controls

verfasst von: Ji Young Lee, Young-Jun Lee, Dong Woo Park, Yoonho Nam, Seung Hyun Kim, Jinseok Park, Young Seo Kim, Hyun Young Kim, Ki-Wook Oh

Erschienen in: Neuroradiology | Ausgabe 12/2017

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Abstract

Purpose

The purpose of this study was to investigate the differences in motor cortex susceptibility among patients with amyotrophic lateral sclerosis (ALS), cerebrovascular disease (CVD), and healthy controls using quantitative susceptibility mapping (QSM).

Methods

We retrospectively reviewed 78 QSM images from 26 patients with ALS, 26 age- and sex-matched patients with CVD, and 26 healthy controls. A region of interest was drawn in the hand lobule of both the motor cortexes and subcortical white matter. The relative susceptibility (RS) of the motor cortex was obtained by subtracting the susceptibility of the subcortical white matter from that of the motor cortex. We compared the cortexmean, cortexmax, subcortical white mattermean, RSmean, and RSmax values among the three groups using analysis of variance and Tukey’s post hoc test. Receiver operating characteristic (ROC) curve analysis was also performed.

Results

There were significant differences in the cortexmean, cortexmax, RSmean, and RSmax among the three groups, with higher values in patients with ALS (p = 0.01, p = 0.004, p < 0.001, and p < 0.001, respectively). Subcortical white mattermean was significantly lower in patients with ALS compared with patients with CVD and healthy controls (p = 0.04). ROC curve analysis showed that the area under the curve of RSmean was 0.70, the highest among the measured parameters.

Conclusion

Quantitative measurements of susceptibility of the motor cortex with QSM demonstrate its potential as an imaging biomarker in ALS patients.
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Metadaten
Titel
Quantitative susceptibility mapping of the motor cortex: a comparison of susceptibility among patients with amyotrophic lateral sclerosis, cerebrovascular disease, and healthy controls
verfasst von
Ji Young Lee
Young-Jun Lee
Dong Woo Park
Yoonho Nam
Seung Hyun Kim
Jinseok Park
Young Seo Kim
Hyun Young Kim
Ki-Wook Oh
Publikationsdatum
11.10.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Neuroradiology / Ausgabe 12/2017
Print ISSN: 0028-3940
Elektronische ISSN: 1432-1920
DOI
https://doi.org/10.1007/s00234-017-1933-9

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