Magnetic resonance imaging for the diagnosis of muscular dystrophy.
10.7499/j.issn.1008-8830.2206052
- Author:
Jing TANG
1
;
Jia-Peng ZHANG
1
;
Xue-Jun YANG
;
Jing-Zi ZHONG
1
;
Yan-Shu XIE
1
;
Qi MENG
1
;
Dan LAN
1
Author Information
1. Department of Pediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
- Publication Type:Journal Article
- Keywords:
Child;
Diagnosis;
Duchenne muscular dystrophy;
Magnetic resonance imaging;
Muscular dystrophy
- MeSH:
Child;
Humans;
Muscular Dystrophy, Duchenne/diagnostic imaging*;
Muscular Dystrophies, Limb-Girdle/pathology*;
Muscle, Skeletal/diagnostic imaging*;
Magnetic Resonance Imaging/methods*;
Thigh/pathology*
- From:
Chinese Journal of Contemporary Pediatrics
2022;24(11):1231-1237
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVES:To summarize the skeletal muscle magnetic resonance imaging (MRI) features of the lower limbs in common subtypes of muscular dystrophy (MD) and the experience in the application of MRI in the diagnosis of MD.
METHODS:A total of 48 children with MD who were diagnosed by genetic testing were enrolled as subjects. The muscle MRI features of the lower limbs were analyzed. Cumulative fatty infiltration score was calculated for each subtype, and the correlation of cumulative fatty infiltration score with clinical indices was analyzed for Duchenne muscular dystrophy (DMD).
RESULTS:DMD was characterized by the involvement of the gluteus maximus and the adductor magnus. Becker muscular dystrophy was characterized by the involvement of the vastus lateralis muscle. Limb-girdle muscular dystrophy was characterized by the involvement of the adductor magnus, the vastus intermedius, the vastus medialis, and the vastus lateralis muscle. For DMD, the cumulative fatty infiltration score of the lower limb muscles was significantly correlated with age, course of the disease, muscle strength, and motor function (P<0.05), while it was not significantly correlated with the serum creatine kinase level (P>0.05).
CONCLUSIONS:Different subtypes of MD have different MRI manifestations, and MRI may help with the diagnosis and assessment of MD.
