2023年10月6日 · Vertebrobasilar insufficiency is a clinical syndrome caused by transient ischemia of the vertebrobasilar circulation, formed by the vertebral and basilar arteries, which forms the posterior circulation of the brain 1.

2022年3月1日 · Vertebrobasilar insufficiency (VBI) is reduced or stopped blood flow to the back of your brain. Hardening of your arteries (atherosclerosis) often causes this condition. VBI impacts your balance and movement, as well as increases your risk of stroke and other health issues. Treatments for VBI include lifestyle changes, medication and surgery.

2023年7月17日 · Vertebrobasilar insufficiency (VBI) is defined by inadequate blood flow through the posterior circulation of the brain, supplied by the 2 vertebral arteries that merge to form the basilar artery. The vertebrobasilar arteries supply the …

電腦斷層血管造影術 (Computed Tomography Angiography, CTA)：用來評估椎基底動脈血管狹窄或閉塞程度。 此疾病的治療包括確定及控制危險因子、改善生活習慣與藥物服用。 若病人曾經中風或短暫性腦缺血者，可藉由服用抗血小板凝集劑或抗凝血劑以及改善健康飲食及生活方式來降低未來中風的危險性。 若合併高血壓之患者可藉由飲食 (避免高鹽之飲食)、生活型態的改變及遵照醫囑服藥控制降低血壓。 若合併糖尿病之患者，可藉由飲食 (遵循少糖、少鹽、少油及多纖維之 …

Vertebrobasilar insufficiency (VBI) is a hemodynamic posterior circulation transient ischemic attack (TIA) caused by intermittent vertebral artery occlusion that is induced by a head rotation or extension. VBI may result from large vessel atherosclerotic disease, dissection, cervical compressive lesions, and subclavian steal phenomenon.

The original articles included three descriptions of clinical features of VBI, one demonstrated results of electronystagmography testing, one reported the validity of the vertebral deprivation nystagmus as a diagnostic tool, and 9 compared imaging studies in either controls or patients with VBI (5 studies using magnetic resonance imaging or ...

CT is insensitive for the diagnosis of acute stroke. MRA, CT angiography (CTA), and angiography have been used. Angiography is invasive but the gold standard. Duplex ultrasonography is neither sensitive nor specific.

The CT angiography (CTA) shows a high sensitivity and specificity in the diagnosis of VBI. The normal CT can diagnose subarachnoid hemorrhage following the intracranial vertebral artery dissection, but can't provide enough definition to the artery.

VBI，椎基底动脉系统短暂缺血发作，当各种病因使椎基底 动脉 系统的血流量下降到一定程度，就可以出现相应的脑缺血症状，一般不超过24小时，但可反复发作，医学上称为椎基底动脉系统短暂缺血发作，简称“VBI”。 有些病人症状不重但24小时内不缓解，又称为椎基底动脉系统供血不足。 正常双侧椎动脉血流量为200毫升/分钟，相当于全脑血流量的1/5。 VBI的病因：（1）高血压、糖尿病、高脂血症、 动脉硬化 以及血管炎症导致 椎基底动脉 系统的血管管腔狭窄、 血栓形 …

Vertebrobasilar artery insufficiency (VBI) occurs when the blood flow to the posterior circulation of the brain, supplied by the vertebral arteries, becomes inadequate. Frequently, VBI is detected accidentally through CT-Scan in patients who do not show …