Monitoring skeletal muscle chronic fatty degenerations with fast T1-mapping.
Objectives: To develop a fast, high-resolution T1-mapping sequence dedicated to skeletal muscle imaging, and to evaluate the potential of T1 as a robust and sensitive biomarker for the monitoring of chronic fatty degenerations in a dystrophic disease.Methods: The magnetic resonance imaging sequence...
| Publicado en: | European Radiology Vol. 28; no. 11; pp. 4662 - 4669 |
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| Autores principales: | , , |
| Formato: | diagnostic images equations & formulas research tables/charts Journal Article |
| Publicado: |
Springer Nature
Nov2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=132188034&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 132188034 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Nov2018 vid: 28 iid: 11 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 132188034 132188034 NLM29713767 132188034 10.1007/s00330-018-5433-z NLM29713767 132188034 ppf: 4662 ppct: 7 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Monitoring skeletal muscle chronic fatty degenerations with fast T1-mapping. aug: au: Marty, Benjamin Coppa, Bertrand Carlier, Pierre G. affil: Institute of Myology, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651, Paris Cedex 13, France sug: subj: Adipose Tissue Muscle, Skeletal Magnetic Resonance Imaging Methods Muscular Dystrophy Diagnosis Thigh Reproducibility of Results Adult Prospective Studies Male Research Subjects Human Adult: 19-44 years Male ab: Objectives: To develop a fast, high-resolution T1-mapping sequence dedicated to skeletal muscle imaging, and to evaluate the potential of T1 as a robust and sensitive biomarker for the monitoring of chronic fatty degenerations in a dystrophic disease.Methods: The magnetic resonance imaging sequence consisted of the acquisition of a 1,000-radial-spokes FLASH echo-train following magnetisation inversion, resulting in 10s scan time per slice. Temporal image series were reconstructed using compressed sensing and T1 maps were computed using Bloch simulations. Ten healthy volunteers and 30 patients suffering from Becker muscular dystrophy (BMD) participated in this prospective study, in order to evaluate the repeatability, the precision and the sensitivity of the proposed approach. Intramuscular fat fraction (FF) was also measured using a standard three-point Dixon method. The protocol was approved by a local ethics committee.Results: The mean T1 evaluated in the thighs muscles of healthy volunteers was 1,199 ± 45 ms, with a coefficient of reproducibility of 2.3%. Mean T1 values were statistically decreased in the thighs of BMD patients and were linearly correlated with intramuscular FF (R = -0.98).Conclusions: T1-mapping is a good candidate for fast, sensitive and quantitative monitoring of fatty infiltrations in neuromuscular disorders.Key Points: • A T1 mapping sequence dedicated to skeletal muscle imaging was implemented. • The acquisition time was 10 s per slice. • Muscle T1 values were significantly decreased in dystrophic muscles compared to healthy muscles. • T1 values correlated with intramuscular fat fraction measured by three-point Dixon. • T1 represents an alternative biomarker for monitoring fatty infiltrations in neuromuscular disorders. pubtype: Academic Journal doctype: diagnostic images equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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