Detection of cervical nerve root hypertrophy by ultrasonography in chronic inflammatory demyelinating polyradiculoneuropathy

Matsuoka, Naoki; Kohriyama, Tatsuo; Ochi, Kazuhide; Nishitani, Michie; Sueda, Yoshimasa; Mimori, Yasuyo; Nakamura, Shotaro; Matsumoto, Masayasu

doi:10.1016/j.jns.2003.11.011

Cited by 96 publications

(75 citation statements)

References 34 publications

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“…For imaging of the cervical nerve roots, a coronal oblique plane was used to visualize the cervical nerve roots longitudinally. By using the previously described methods the right C5, C6, and C7 nerve roots were easily identified (3,9). To obtain optimal images for measurements of maximal diameter, the cervical nerve roots were examined in the sagittal oblique plane in addition to the coronal oblique plane in some cases.…”

Section: Sonographymentioning

confidence: 99%

Sonographic evaluation of cervical nerve roots in ALS and its clinical subtypes

et al. 2016

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: Morphological assessment of peripheral nerves in amyotrophic lateral sclerosis (ALS) has been available by sonography. Detection of possible axonal atrophy could be important in predicting progression. Research on correlation between sonographic findings and clinical presentation has been sparse. The aim of the study was to assess possible motor axon loss in patients with ALS by sonography and to correlate the imaging features with clinical subtypes. Patients with either definite or probable ALS and control subjects had sonographic evaluation of the cervical nerve roots (C5, C6, and C7). Each diameter and their sums were measured. The ALS patients were classified by their clinical onset and progression (arm-onset, leg-onset, bulbar, and flail-arm variant) and the sonographic features were compared. Overall, the cervical nerve roots were thinner in ALS than in the controls, but the diagnostic sensitivity was low. The patients with arm dysfunctions tended to show thinner nerve roots than those with normal or relatively preserved arm functions. The four ALS subtypes showed similar diameters of the nerve roots. There was no correlation between the disease duration and the diameters of the nerve roots. Sonography of the cervical nerve roots showed axonal atrophy in ALS and potentially reflects subtle arm dysfunctions.

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Section: Sonographymentioning

confidence: 99%

Sonographic evaluation of cervical nerve roots in ALS and its clinical subtypes

et al. 2016

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“…Total protein in CSF has been reported to show a significantly positive correlation with diameters of spinal nerve roots (10) …”

Section: Patientsmentioning

confidence: 99%

Spinal Nerve Root Hypertrophy on MRI: Clinical Significance in the Diagnosis of Chronic Inflammatory Demyelinating Polyradiculoneuropathy

et al. 2008

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“…1 Sonographic diffuse or multifocal nerve enlargement were reported in various demyelinating polyneuropathies, such as chronic inflammatory demyelinating polyneuropathy (CIDP), multifocal motor neuropathy (MMN), and some hereditary polyneuropathies. [2][3][4][5][6] Previous studies described swelling of a single hypoechoic fascicle resulting in focal enlargement of nerve diameter at sites of concurrent conduction blocks in CIDP patients. 7,8 MADSAM is an immune mediated neuropathy, a variant of CIDP, which appears clinically as a chronic sensorimotor multiple mononeuropathy with multifocal conduction blocks in electrophysiological studies.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonography of MADSAM neuropathy: Focal nerve enlargements at sites of existing and resolved conduction blocks

Scheidl

Bőhm

Simó

et al. 2012

Neuromuscular Disorders

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Using the emerging technique of peripheral nerve ultrasonography, multiple focal nerve swellings corresponding to sites of existing conduction blocks have been described in demyelinating polyneuropathies. We report two cases of multifocal acquired demyelinating sensory and motor neuropathy (MADSAM). In the first, multiple focal nerve enlargements were detected by ultrasound at sites of previous conduction blocks, well after complete clinical and electrophysiological resolution. In the second case, existing proximal conduction blocks could be localized by ultrasound. Our cases highlight the importance of nerve ultrasound in identifying conduction blocks and demonstrate that ultrasonographic morphological changes may outlast functional recovery in demyelinating neuropathies.

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Detection of cervical nerve root hypertrophy by ultrasonography in chronic inflammatory demyelinating polyradiculoneuropathy

Cited by 96 publications

References 34 publications

Sonographic evaluation of cervical nerve roots in ALS and its clinical subtypes

Sonographic evaluation of cervical nerve roots in ALS and its clinical subtypes

Spinal Nerve Root Hypertrophy on MRI: Clinical Significance in the Diagnosis of Chronic Inflammatory Demyelinating Polyradiculoneuropathy

Ultrasonography of MADSAM neuropathy: Focal nerve enlargements at sites of existing and resolved conduction blocks

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