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| Application Research of TCD in the Diagnosis of Intracranial Artery Stenosis in the Pilot Medical Examination |
| Jilin Branch of China Southern Airlines Company Limited Hang Wei Room，Changchun 130031，China |
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Abstract Objective：To investigate the effect of transcranial Doppler（TCD） for screening and diagnosis of intracranial artery stenosis，whether it can be used as a screening method for cerebral vascular stenosis in the physical examination of pilots.Method：The bilateral middle cerebral artery（MCA），anterior cerebral artery（ ACA） and posterior cerebral artery（PCA） of the 97 patients were examined by transcranial Doppler ultrasonography. Systolic blood flow velocity（Vs），mean blood flow velocity（Vm） and pulse index（PI） of above arteries and blood flow direction and Doppler spectrum of each artery were observed.At the same time，simultaneous nuclear magnetic resonance angiography（MRA） was performed.Result：The results showed that，transcranial Doppler sonography and MRI results had a very significant compliance（P<0.001）.The ACA consistency of the two methods was 82.47%，the MCA consistency was 83.51%，the PCA consistency was 80.92%，the total consistency was 82.31%.The specificity of TCD was 86% and the sensitivity was 77%.Conclusion：The evaluated result of TCD and MRA head for intracranial artery stenosis is good.TCD examination is simple and feasible， and can be used as a screening method for the diagnosis of intracranial artery stenosis.In the pilot physical examination，if the TCD examination is normal，you can not need to do MRA inspection；MRA can be checked when TCD suggests that the narrow blood vessel.
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| [1] |
JIANG Shunfu,XU Jie,CAO Minghua,WU Mingchao,ZOU Yongzhou,XU Dehong,XU Hong,BI Jiancan,WU Yilang. The Guiding Value of Bedside Transcranial Doppler Ultrasound in Bridging Treatment of Acute Cerebral Infarction[J]. 中国医学创新, 2023, 20(8): 139-143. |
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