Quantitative muscle ultrasound versus quantitative MRI in facioscapulohumeral dystrophy
SourceMuscle and Nerve, 50, (2014), pp. 968-975
Article / Letter to editor
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Paediatrics - OUD tm 2017
Muscle and Nerve
SubjectRadboudumc 15: Urological cancers RIHS: Radboud Institute for Health Sciences; Radboudumc 15: Urological cancers RIMLS: Radboud Institute for Molecular Life Sciences; Radboudumc 3: Disorders of movement DCMN: Donders Center for Medical Neuroscience
Background: Ultrasound and MR imaging are non-invasive methods that can be performed repeatedly and without discomfort. In the assessment of neuromuscular disorders it is unknown if they hold complementary information. In this study we tested this for patients with facioscapulohumeral muscular dystrophy (FSHD). Methods: We performed quantitative muscle ultrasound (QMUS) and quantitative MRI (QMRI) of the legs in 5 men with FSHD. Results: The correlation between QMUS determined z-scores and QMRI determined muscle fraction and T1 signal intensity (SI) was very high. QMUS had a wider dynamic range than QMRI, whereas QMRI could detect inhomogeneous distribution of pathology over the length of the muscles. Discussion: Both QMUS and QMRI are well suited for imaging muscular dystrophy. The larger dynamic range of QMUS can be advantageous in follow-up of advanced disease stages, whereas QMRI seems preferable in pathologies such as FSHD that affect deep muscle layers and show inhomogeneous abnormality distributions. © 2014 Wiley Periodicals, Inc.
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