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The current diagnostic reference standard for peripheral trigeminal nerve injuries is neurosensory testing in combination with clinical findings to determine treatment. MRN provides an alternative method for the diagnosis and staging of patients with PTN because of its ability to delineate anatomy and the exact location of injury. This study correlates injury grading based on NST and MRN, demonstrating similar rates of agreement with surgical findings in lower-grade injuries but higher rates of agreement between MRN and surgical findings than NST in higher-grade injuries.

This study found that a 9-minute delay in postcontrast acquisition on multiphase contrast-enhanced VW MRI proved to be beneficial for enhancing plaque visibility and for the differentiation between culprit and nonculprit plaques. Additionally, the study showed that culprit and nonculprit plaques exhibit unique enhancement patterns over time.