title: Preoperative detection of the neurovascular relationship in trigeminal neuralgia using three-dimensional fast imaging employing steady-state acquisition (FIESTA) and magnetic resonance angiography (MRA).
abstract: Microvascular decompression is an accepted treatment for trigeminal neuralgia (TN). Preoperative identification of neurovascular compression, therefore, could aid determination of the appropriate treatment for TN. To preoperatively visualize the neurovascular relationship, three-dimensional fast imaging employing steady-state acquisition (3D FIESTA) and magnetic resonance angiography (MRA) were performed on 37 patients with TN in our study. 3D FIESTA in combination with MRA identified surgically verified neurovascular contact in 35 of 36 symptomatic nerves. The offending vessel (artery or vein) was correctly identified in 94.4% of patients, and agreement between preoperative MRI visualization and surgical findings was excellent (k=0.92; 95% confidence interval, 0.67-1.00). Thus, 3D FIESTA in combination with MRA is useful in the detection of vascular contact with the trigeminal nerve in patients with TN.
authors.affiliation: Department of Radiology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan 250012, China. zengqingshi@yahoo.cn
authors.forename: QingShi
authors.initials: Q
authors.lastname: Zeng
authors.forename: Qin
authors.initials: Q
authors.lastname: Zhou
authors.forename: ZhiLing
authors.initials: Z
authors.lastname: Liu
authors.forename: ChuanFu
authors.initials: C
authors.lastname: Li
authors.forename: ShiLei
authors.initials: S
authors.lastname: Ni
authors.forename: Feng
authors.initials: F
authors.lastname: Xue
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019299:Decompression, Surgical; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000379:methods; D011859:Radiography; D014277:Trigeminal Neuralgia / Q000000981:diagnostic imaging* / Q000601:surgery