The current reference standard of diagnosis for peripheral trigeminal neuropathies (PTN) is clinical neurosensory testing (NST). MR neurography (MRN) is useful for PTN injury diagnosis, but it has only been studied in small case series. The aim of this study was to evaluate the agreement of Sunderland grades of nerve injury on MRN and NST by using surgical findings and final diagnoses as reference standards.

A total of 297 patient records with a chief complaint of PTN neuralgia were identified from the university database, and 70 patients with confirmed NST and MRN findings who underwent surgical nerve repair were included in the analysis. Cohen weighted kappa was used to calculate the strength of the agreement between the 3 modalities.

There were 19 men and 51 women, with a mean age of 39.6 years and a standard deviation of 16.9 years. Most (51/70, 73%) injuries resulted from tooth extractions and implants. MRN injury grades agreed with surgical findings in 84.09% (37/44) of cases, and NST injury grades agreed with surgical findings in 74.19% (23/31) of cases. MRN and NST both showed similar agreement with surgery for grades I to III (70% and 71.43%). However, MRN showed a higher rate of agreement with surgery (88.24%) for injury grades IV and V than did NST (75%).

MRN can objectively improve preoperative planning in patients with higher-grade nerve injuries.

目前诊断周围三叉神经病（PTN）的参考标准是临床神经感觉测试（NST）。MR 神经成像 (MRN) 对于 PTN 损伤诊断很有用，但仅在小病例系列中进行了研究。本研究的目的是通过手术结果和最终诊断作为参考标准，评估 MRN 和 NST 上 Sunderland 神经损伤分级的一致性。

从大学数据库中找出了总共 297 份主诉为 PTN 神经痛的患者记录，并纳入了 70 名经证实 NST 和 MRN 结果并接受外科神经修复的患者。Cohen 加权 kappa 用于计算 3 种模式之间的一致性强度。

其中男性 19 例，女性 51 例，平均年龄 39.6 岁，标准差 16.9 岁。大多数（51/70，73%）伤害是由拔牙和种植牙造成的。MRN 损伤等级与手术结果一致的病例有 84.09% (37/44)，NST 损伤等级与手术结果一致的病例有 74.19% (23/31)。MRN 和 NST 对于 I 级至 III 级的手术表现出相似的一致性（70% 和 71.43%）。然而，对于 IV 级和 V 级损伤，MRN 的手术同意率 (88.24%) 高于 NST (75%)。

MRN 可以客观地改善重度神经损伤患者的术前计划。