• Title/Summary/Keyword: celebral blood flow

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The Use of Transcranial Doppler(TCD) in Korean Medicine: A Review (TCD 관련 국내 한의학 연구에 대한 고찰)

  • Shin, Kyung-Min;Byun, Hyuk;Jung, Chan-Yung;Kim, Eun-Jung;Lee, Jae-Dong;Kim, Kap-Sung;Lee, Seung-Deok
    • Journal of Acupuncture Research
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    • v.27 no.3
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    • pp.83-92
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    • 2010
  • Objectives : The aim of this study is to research the trend of the TCD-related studies in Korean medicine and to establish the hereafter direction for the study on celebral blood flow. Methods : We reviewed the domestic papers searched by search engine of Korean Acupuncture & Moxibustion Society and Korea Institute of Oriental Medicine etc. Results : We have searched 42 articles in 14 journals. 1. There were 2 or more articles every year. In 2004 there were 5 articles. 2. 11 studies were associated with the usefulness of TCD as a diagnostic tool for CVA. 3. 8 studies were associated with the effect of acupuncture on cerebral blood flow. 5 studies were about acupuncture, 2 studies were about electro-acupuncture, and 1 study was about pharmacopuncture. Conclusions : These results suggest that acupuncture could have a specific effect on cerebral blood flow. But we need more studies about the effect of various acupuncture point on cerebral blood flow.

The Research to Correct Overestimation in TOF-MRA for Severity of Cerebrovascular Stenosis (3D-SPACE T2 기법에 의한 TOF-MRA검사 시 발생하는 혈관 내 협착 정도의 측정 오류 개선에 관한 연구)

  • Han, Yong Su;Kim, Ho Chul;Lee, Dong Young;Lee, Su Cheol;Ha, Seung Han;Kim, Min Gi
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.12
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    • pp.180-188
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    • 2014
  • It is very important accurate diagnosis and quick treatment in cerebrovascular disease, i.e. stenosis or occlusion that could be caused by risk factors such as poor dietary habits, insufficient exercise, and obesity. Time-of-flight magnetic resonance angiography (TOF-MRA), it is well known as diagnostic method without using contrast agent for cerebrovascular disease, is the most representative and reliable technique. Nevertheless, it still has measurement errors (also known as overestimation) for length of stenosis and area of occlusion in celebral infarction that is built by accumulation and rupture of plaques generated by hemodynamic turbulence. The purpose of this study is to show clinical trial feasibility for 3D-SPACE T2, which is improved by using signal attenuation effects of fluid velocity, in diagnosis of cerebrovascular disease. To model angiostenosis, strictures of different proportions (40%, 50%, 60%, and 70%) and virtual blood stream (normal saline) of different velocities (0.19 ml/sec, 1.5 ml/sec, 2.1 ml/sec, and 2.6 ml/sec) by using dialysis were made. Cross-examinations were performed for 3D-SPACE T2 and TOF-MRA (16 times each). The accuracy of measurement for length of stenosis was compared in all experimental conditions. 3D-SPACE 2T has superiority in terms of accuracy for measurements of the length of stenosis, compared with TOF-MRA. Also, it is robust in fast blood stream and large stenosis than TOF-MRA. 3D-SPACE 2T will be promising technique to increase diagnosis accuracy in narrow complex lesions as like two cerebral small vessels with stenosis, created by hemodynamic turbulence.