■使用磁共振成像(MRI)评估没有面肌痉挛或面神经麻痹的患者中面神经血管接触的患病率。
■我们的放射学数据库被访问,以发现一系列在研究期间接受脑部MRI检查的连续成年患者,排除有面肌痉挛(HFS)病史的人,面神经麻痹,创伤性脑损伤,颅内肿瘤,颅内手术,三叉神经血管压迫,脑部放射治疗,以及图像质量差的研究。2名放射科医生独立检查了后颅窝的112(224侧)MRI,以检查涉及面神经的神经血管接触。神经血管接触的存在,接触点的数量,面神经颅内接触的位置,罪犯船只,在没有HFS和面神经麻痹的患者队列中,在CISSMRI序列中记录压迫的严重程度。
■在无症状的HFS和面神经麻痹患者中,涉及面神经的神经血管接触的患病率可高达51%。它通常由小脑前下动脉引起,通常累及脑池部分,严重程度为轻度至中度。
■在无症状患者中,面神经颅内段的搏动性神经血管接触通常发生在一个点,与HFS患者相比,远端部分严重程度较轻。在评估HFS患者微血管减压术的候选性时,应考虑无症状队列中的这些结果。
UNASSIGNED: To evaluate the prevalence of vascular contact of the facial nerve in patients without hemifacial spasm or facial palsy using magnetic resonance imaging (MRI).
UNASSIGNED: Our radiology database was accessed to find a series of consecutive adult patients who underwent MRI of the brain during the study period, excluding those with a history of hemifacial spasm (HFS), facial palsy, traumatic brain injury, intracranial tumour, intracranial surgery, trigeminal neuro-vascular compression, brain radiation therapy, and studies with poor image quality. A total of 112 (224 sides) MRIs of the posterior fossa were independently reviewed by 2 radiologists for neurovascular contact involving the facial nerve. The presence of neuro-vascular contact, the number of points of contact, the location of contact along the intracranial course of the facial nerve, the culprit vessel, and the severity of compression were recorded in the CISS MRI sequence in the cohort of patients without HFS and facial palsy.
UNASSIGNED: The prevalence of neurovascular contact involving the facial nerve can be as high as 51% in patients asymptomatic for HFS and facial palsy. It is frequently caused by the anterior inferior cerebellar artery and commonly involves the cisternal portion with mild to moderate severity.
UNASSIGNED: In asymptomatic patients, the pulsatile neurovascular contact of the intracranial segment of the facial nerve typically occurs at one point, involving the distal portion with milder severity in contrast to patients with HFS. These results in the asymptomatic cohort should be considered when evaluating the candidacy of HFS patients for microvascular decompression.