Quantitative MRI can detect subclinical disease progression in muscular dystrophy

被引:82
作者
Fischmann, Arne [1 ]
Hafner, Patricia [2 ]
Fasler, Susanne [2 ]
Gloor, Monika [3 ]
Bieri, Oliver [3 ]
Studler, Ueli
Fischer, Dirk [2 ,4 ]
机构
[1] Univ Basel Hosp, Inst Radiol, Dept Diagnost & Intervent Neuroradiol, CH-4031 Basel, Switzerland
[2] Univ Basel Hosp, Dept Neurol, CH-4031 Basel, Switzerland
[3] Univ Basel Hosp, Inst Radiol, Div Radiol Phys, CH-4031 Basel, Switzerland
[4] Univ Basel, Childrens Hosp, Dept Neuropaediat, Basel, Switzerland
关键词
MRI; Neuromuscular disease; OPMD; Follow-up; SKELETAL-MUSCLE; FAT;
D O I
10.1007/s00415-011-6393-2
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Oculopharyngeal muscular dystrophy (OPMD) is a rare autosomal dominant muscular dystrophy with late onset and slow progression. The aim of this study was to compare different methods of quantitative MRI in the follow-up of OPMD to semiquantitative evaluation of MRI images and to functional parameters. We examined 8 patients with genetically confirmed OPMD and 5 healthy volunteers twice at an interval of 13 months. Motor function measurements (MFM) were assessed. Imaging at 1.5 T (Siemens Magnetom Avanto) comprised two axial slice groups at the largest diameter of thigh and calf and included T1w TSE, 2-point Dixon for muscular fat fraction (MFF) and a multi-contrast TSE sequence to calculate quantitative T2 values. T1 images were analyzed using Fischer's semiquantitative 5-point (0-4) scale. MFM and visual scores showed no significant difference over the study period. Overall T2 values increased in patients over the study period from 49.4 to 51.6 ms, MFF increased from 19.2 to 20.7%. Neither T2 values nor MFF increased in controls. Changes in T2 correlated with the time interval between examinations (r (2) = 0.42). In this small pilot trial, it was shown that quantitative muscle MRI can detect subclinical changes in patients with OPMD. Quantitative MRI might, therefore, be a useful tool for monitoring disease progression in future therapeutic trials.
引用
收藏
页码:1648 / 1654
页数:7
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