Quantitative muscle ultrasound versus quantitative magnetic resonance imaging in facioscapulohumeral dystrophy

Autor: Baziel G.M. van Engelen, Nicoline B M Voet, Sigrid Pillen, Barbara H. Janssen, Nens van Alfen, Arend Heerschap
Rok vydání: 2014
Předmět:
Zdroj: Muscle & Nerve. 50:968-975
ISSN: 0148-639X
DOI: 10.1002/mus.24247
Popis: 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.
Databáze: OpenAIRE