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

作者：Hiwatashi Akio^*; Togao Osamu; Yamashita Koji; Kikuchi Kazufumi; Kamei Ryotato; Momosaka Daichi; Ogata Hidenori; Yamasaki Ryo; Yoneyama Masami; Kira Jun ichi; Honda Hiroshi

来源：European Journal of Radiology, 2017, 93: 95-99.

DOI：10.1016/j.ejrad.2017.05.031

• Chronic inflammatory demyelinating
• polyneuropathy
• Neurography
• Lumbar plexus
• Magnetic resonance imaging
• Demyelination

Purpose: To evaluate whether 3D SHINKEI in the lumbar plexus could identify patients with chronic inflammatory demyelinating polyneuropathy (CIDP).
Materials and methods: Twenty-one patients with CIDP and 15 non-CIDP patients were studied in this retrospective study. The SNR, contrast-to-noise ratio (CNR), contrast ratio (CR) and the size of the lumbar ganglions and roots were measured. Statistical analyses were performed with Mann-Whitney U test and receiver operating characteristics (ROC) analysis.
Results: The SNRs of the ganglions and roots were larger in patients with CIDP (8.30 +/- 4.87 and 8.24 +/- 4.92) than in non-CIDP patients (4.95 +/- 2.05 and 5.08 +/- 1.97, P < 0.0001, respectively). The CNRs of the ganglions and roots were larger in patients with CIDP (40.79 +/- 43.19 and 37.16 +/- 48.31) than in non-CIDP patients (25.90 +/- 10.41 and 18.37 +/- 32.83, P < 0.0001, respectively). The CRs of the ganglions and roots were larger in patients with CIDP (0.74 +/- 0.13 and 0.66 +/- 0.17) than in non-CIDP patients (0.72 +/- 0.12 and 0.50 +/- 0.17, P = 0.004 and P < 0.0001, respectively). The sizes of the ganglions and the roots were larger in patients with CIDP (6.62 +/- 1.81 mm and 5.76 +/- 3.24 mm) than in non-CIDP patients (5.23 +/- 1.17 mm and 4.24 +/- 1.11 mm, P < 0.0001, respectively). ROC analysis showed the best diagnostic performance with the CNR of the roots.
Conclusion: Patients with CIDP could be distinguished from controls on 3D SHINKEI.

• 出版日期2017-8