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01-02-2017 | Musculoskeletal

Evaluation of chronic inflammatory demyelinating polyneuropathy: 3D nerve-sheath signal increased with inked rest-tissue rapid acquisition of relaxation enhancement imaging (3D SHINKEI)

Authors: Akio Hiwatashi, Osamu Togao, Koji Yamashita, Kazufumi Kikuchi, Hidenori Ogata, Ryo Yamasaki, Masami Yoneyama, Jun-ichi Kira, Hiroshi Honda

Published in: European Radiology | Issue 2/2017

Abstract

Objective

To evaluate the usefulness of 3D nerve-sheath signal increased with inked rest-tissue rapid acquisition of relaxation enhancement imaging (SHINKEI) in patients with chronic inflammatory demyelinating polyneuropathy (CIDP).

Methods

This institutional review board-approved retrospective study included 14 CIDP patients and nine normal subjects. The signal-to-noise ratio (SNR), contrast ratio (CR), and the size of the cervical ganglions and roots were measured by two raters.

Results

The SNRs of the ganglions and roots were larger in patients with CIDP (9.55 ± 3.87 and 9.81 ± 3.64) than in normal subjects (7.21 ± 2.42 and 5.70 ± 2.14, P < 0.0001, respectively). The CRs of the ganglions and roots were larger in patients with CIDP (0.77 ± 0.08 and 0.68 ± 0.12) than in normal subjects (0.72 ± 0.07 and 0.53 ± 0.11, P < 0.0001, respectively). The sizes of the ganglions and the roots were larger in patients with CIDP (6.44 ± 1.61 mm and 4.89 ± 1.94 mm) than in normal subjects (5.24 ± 1.02 mm and 3.39 ± 0.80 mm, P < 0.0001, respectively).

Conclusions

Patients with CIDP could be distinguished from controls on 3D SHINKEI.

Key points

• 3D SHINKEI could visualize brachial plexus with high spatial resolution.

• CIDP patients showed increased SNR, CR, and the size of brachial plexus.

• 3D SHINKEI could discriminate CIDP patients from normal subjects.

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Title: Evaluation of chronic inflammatory demyelinating polyneuropathy: 3D nerve-sheath signal increased with inked rest-tissue rapid acquisition of relaxation enhancement imaging (3D SHINKEI)
Authors: Akio Hiwatashi
Osamu Togao
Koji Yamashita
Kazufumi Kikuchi
Hidenori Ogata
Ryo Yamasaki
Masami Yoneyama
Jun-ichi Kira
Hiroshi Honda
Publication date: 01-02-2017
Publisher: Springer Berlin Heidelberg
Published in: European Radiology / Issue 2/2017
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-016-4406-3

ACC 2024 Congress

Springer Medicine

Evaluation of chronic inflammatory demyelinating polyneuropathy: 3D nerve-sheath signal increased with inked rest-tissue rapid acquisition of relaxation enhancement imaging (3D SHINKEI)

Abstract

Objective

Methods

Results

Conclusions

Key points

ACC 2024 Congress

Springer Medicine

Abstract

Objective

Methods

Results

Conclusions

Key points

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