| 贺声,曹铁生,段云友,栗克湘.眩晕病因诊断中椎2基底动脉的超声多普勒检测[J].中国医学影像技术,2000,16(8):627~630 |
| 眩晕病因诊断中椎2基底动脉的超声多普勒检测 |
| Signif icance of Vertebrobasilar Artery Ultrasonic Doppler Examination inthe Etiological Diagnosis of Vertigo |
| 投稿时间：2000-04-24 |
| DOI： |
| 中文关键词: 眩晕 超声多普勒 病因诊断 |
| 英文关键词:Vertigo Ultrasonic Doppler Etiological diagnosis |
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| 中文摘要: |
| 目的 分析椎-基底动脉(VBA) 超声多普勒在眩晕病因诊断中的作用。方法 本文观察了104 例眩晕患者的椎动脉超声多普勒血流测值和常规的相关实验室检查指标的改变,同时以30 例正常的椎动脉超声多普勒血流测值做为对照组。结果 ①眩晕组中94 例由ENG、REG、BAEP、X 线、CT 及US-Doppler 检查提示有脑动脉供血不足或脑干中枢病变、脑萎缩或梗塞及颈椎病变等,阳性率达90.4 %。在这些指标阳性的患者中,US-Doppler 指标异常者占52.1 % ,其主要表现为一侧或者双侧VA 较正常人组细窄或走行弯曲,一侧或者双侧VA 血流量较正常人组减低; ②实验室检查中66 例眩晕患者同时有两个以上的检查指标异常,其中43 例伴US-Doppler 异常,占65.1 %; ③实验室指标均阴性10 例,而超声波检测正常的45 例中其它实验室指标可呈异常改变,超声波检测的假阴性率为52.9 %。结论 ①临床检出有脑供血不足或脑干病变的眩晕患者往往可有VBA 异常的基础或涉及VA 的病变,当REG、ENG、BAEP 及X-ray 发现异常时,更应考虑到是否还合并着VBA 供血不足(VBI) ; ②眩晕组的VA 血流量减低的影响因素主要为一侧或者双侧VA 细窄的发生率较高,超声波测定的一侧VA 血流量减低与VBI 有一定关系。 |
| 英文摘要: |
| Purpose To assess the meanings of vertebrobasilar artery ultrasonic Doppler examination in the etiological diagnosis of vertigo. Methods The changes of indexes of VBA US-Doppler and other conventionally relative laboratory diagnositic indicators in a group of 104 vertigo cases were investigated ,and compared with the results of VA US-Doppler examination in another group of 30 cases of normal person. Results ①ENG,REG,BAEP ,X-Ray and US-Doppler showed that alot of disorders , such as cerebral blood insufficiency ,brain-stem lesion ,encephalatrophy or cerebral infarction ,and cervicalspondylopathy ,etc ,were found out among 94 cases in the group of vertigo ,in which the positive rate was 90.4 %. Amongthe patients with the abnormal indexes ,there was a 52. 1 % of them with abnormal US-Doppler demonstrations ,mainly including unilateral or bialateral VA2diameter being more narrow or curved than that of normal cases ,and blood flow volumebeing reduced in unilateral or bialateral VA. ②Sixty-six patients in the vertigo group had two or more abnormal indexes atthe same time ,in which 43 cases displayed the disorders of US-Doppler ,a rate of 65. 1 %. ③There were 10 cases with allthe indexes being normal and 45 cases with one or more of the indexes abnormal but with US-Doppler parameters normal inthis study. The false negative rate of US-Doppler examination was 52.9 %. Conclusion ①The vertigo patients with cerebral blood insufficiency or brain-stem lesion detected by clinic might have the background of abnormal VBA or of involvingVA. When abnormalities were found by REG,ENG,BAEP and X-ray especially ,more attentions should be paid to that thepatient perhaps has a VB insufficiency ,too. ②As the higher rate of narrow VA-diameter in the vertigo group was the chieffactor leading to the decrease of VA blood flow volume ,unilateral decrease of VA blood flow volume discovered by US-Doppler may relate to VBI. |
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