Trigeminal neuralgia: differences in magnetic resonance imaging characteristics of neurovascular compression between symptomatic and asymptomatic nerves
| Autor: | Norio Yoshino, Masahiko Shimada, Madoka Suzuki, Akemi Tetsumura, Tomoka Matsumura, Haruhisa Fukayama, Tohru Kurabayashi |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male Shortest distance Asymptomatic Pathology and Forensic Medicine Trigeminal neuralgia Image Interpretation Computer-Assisted Neurovascular compression medicine Humans Radiology Nuclear Medicine and imaging Dentistry (miscellaneous) Aged Retrospective Studies Aged 80 and over Trigeminal nerve medicine.diagnostic_test business.industry Nerve Compression Syndromes Magnetic resonance imaging Anatomy Middle Aged Trigeminal Neuralgia medicine.disease Magnetic Resonance Imaging medicine.anatomical_structure Female Surgery Oral Surgery medicine.symptom business Blood vessel |
| Zdroj: | Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology. 119:113-118 |
| ISSN: | 2212-4403 |
| DOI: | 10.1016/j.oooo.2014.09.013 |
| Popis: | Objectives Neurovascular compression (NVC) of the trigeminal nerve is the primary cause of trigeminal neuralgia (TN) but is known to occur in both symptomatic and asymptomatic nerves. The purposes of this study were to evaluate the relationship between the magnetic resonance imaging (MRI) findings regarding the site of NVC and the manifestation of TN symptoms. Methods In 147 patients with unilateral TN, the presence or absence of NVC was evaluated on MRI in both symptomatic and asymptomatic nerves. In cases with NVC, the shortest distance from the trigeminal nerve root to the responsible vessel was measured. Results The mean distance from the trigeminal nerve root to the site of NVC in asymptomatic nerves (3.85 ± 2.69 mm) was significantly greater than that in symptomatic nerves (0.94 ± 1.27 mm). When the distance was 3 mm or less, the rate of the manifestation of TN symptoms was 83.1% (103/124). On the other hand, it was only 19.6% (9/46) in cases with a distance of greater than 3 mm. Conclusions Whether or not NVC of the trigeminal nerve was symptomatic was closely related to the distance from the trigeminal nerve root to the responsible blood vessel. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect