Abstract:
OBJECTIVE:To assess safety and feasibility of real-time (RT) MRI for evaluation of dysphagia and to compare this technique to standard assessment by flexible endoscopic evaluation of swallowing (FEES) and videofluoroscopy (VF) in a cohort of patients with inclusion body myositis (IBM). METHODS:Using RT-MRI, FEES, and VF, an unselected cohort of 20 patients with IBM was studied as index disease with a uniform dysphagia. Symptoms of IBM and dysphagia were explored by standardized tools including Swallowing-Related Quality of Life Questionnaire (SWAL-QoL), IBM Functional Rating Scale, Patient-Reported Functional Assessment, and Medical Research Council Scale. RESULTS:Dysphagia was noted in 80% of the patients and SWAL-QoL was impaired in patients with IBM compared to published reference values of healthy elderly. Swallowing in a supine position during RT-MRI was well-tolerated by all patients. RT-MRI equally revealed dysphagia compared to VF and FEES and correlated well with the SWAL-QoL. Only RT-MRI allowed precise time measurements and identification of the respective tissue morphology. The pharyngeal transit times were 2-fold longer compared to published reference values and significantly correlated with morphologic abnormalities. CONCLUSIONS:RT-MRI is safe and equally capable as VF to identify the cause of dysphagia in IBM. Advantages of RT-MRI include visualization of soft tissue, more reliable timing analysis, and lack of X-ray exposure. RT-MRI may become a routine diagnostic tool for detailed assessment of the esophagus and other moving parts of the body, facilitating longitudinal evaluations in daily practice and clinical trials.
journal_name
Neurologyjournal_title
Neurologyauthors
Olthoff A,Carstens PO,Zhang S,von Fintel E,Friede T,Lotz J,Frahm J,Schmidt Jdoi
10.1212/WNL.0000000000003337subject
Has Abstractpub_date
2016-11-15 00:00:00pages
2132-2138issue
20eissn
0028-3878issn
1526-632Xpii
WNL.0000000000003337journal_volume
87pub_type
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