neuromuscular disorders
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: * Signs and symptoms consistent with Multifocal Motor Neuropathy, Chronic inflammatory demyelinating polyneuropathy or Focal/monomelic Spinal Muscular Atrophy;* Adult (*18 years ) * Fulfilling the EFNS/PNS criteria
Exclusion criteria
Exclusion criteria: * Subject is unwilling or unable to participate in this study and to give informed consent. * Legally incompetent adult * Use of drugs which are known to cause motor neuropathy * Other diseases known to cause neuropathy or to reduce mobility * Diseases known to lead to severe handicap or death at short notice * Subject has a prosthesis which is not verifiable MR-compatible by registration number. * Contraindications to undergo a MRI scan (I.e. pregnancy, claustrophobia, metal corpora aliena or metal implants such as pacemakers).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Correlation between MRI, US, NCS, muscle strength, disability scale. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. NCS outcome (EFNS/PNS guideline) a. Temporal dispersion, Conduction velocity, conduction block 2. US a. Cross sectional area b. Vascularization c. Echo intensity 3. MRI a. Diameters b. Scoring of hyperintensities and swelling c. DTI parameters and architecture of affected nerves and muscles 4. Muscle strength * hand-held dynamometry and MRC scores 5. Overall Neuropathy Limitations Scale (ONLS) 6. INCAT sensory Scale (ISS) | — |
Countries
Netherlands