【摘要】：目的 :應(yīng)用經(jīng)顱多普勒超聲(TCD)評價正常健康成人Willis環(huán)側(cè)支循環(huán)效果。方法 :選擇99例正常健康成人,通過壓迫同側(cè)頸總動脈試驗,應(yīng)用TCD觀察各組壓迫前、后的大腦中動脈(MCA)收縮峰血流速度,血流速度平均值和舒張末血流速度及各期代償率并進(jìn)行左、右側(cè)比較。結(jié)果:壓頸前MCA收縮期血流速度左、右側(cè)分別為(102.1±13.0)cm/s,(101.0±12.9)cm/s,壓頸后分別為(47.4±12.4)cm/s,(47.5±11.8)cm/s,左、右側(cè)代償率分別為0.47±0.12,0.47±0.11。各指標(biāo)左、右側(cè)比較無顯著性差異(P0.05);壓頸前MCA平均血流速度左、右側(cè)分別為(65.3±8.6)cm/s,(64.8±8.9)cm/s,壓頸后分別為(33.7±8.4)cm/s,(33.6±8.5)cm/s,左、右側(cè)代償率分別為0.52±0.13,0.52±0.12。各指標(biāo)左、右側(cè)比較無顯著性差異(P0.05);壓頸前MCA舒張末期血流速度左、右側(cè)分別為(47.0±6.9)cm/s,(46.8±7.7)cm/s,壓頸后分別為(27.2±6.8)cm/s,(26.7±7.1)cm/s,左、右側(cè)代償率分別為0.58±0.15,0.57±0.15。各指標(biāo)左、右側(cè)比較無顯著性差異(P0.05)。收縮峰期與舒張末期代償率比較有顯著性差異(P0.01),其余各期間代償率比較無顯著性差異(P0.05)。結(jié)論:TCD能實時評價顱內(nèi)動脈側(cè)支代償效果,且左、右代償效果無顯著性差異,舒張末期的代償效果明顯高于收縮峰期。
[Abstract]:Objective: to evaluate the collateral circulation of Willis circle in healthy adults by transcranial Doppler ultrasound (TCD). Methods: TCD was used to observe the peak systolic velocity of middle cerebral artery (MCA) before and after compression in 99 healthy adults. Mean blood flow velocity, end diastolic velocity and compensatory rate were compared between left and right. Results: the systolic velocity of MCA was (102.1 鹵13.0) cm / s on the right side, (101.0 鹵12.9) cm / s on the right side, (47.4 鹵12.4) cm / s, (47.5 鹵11.8) cm / s after cervical compression, and the compensatory rates on the left and right sides were 0.47 鹵0.120.47 鹵0.11 respectively. The mean blood flow velocity of MCA before cervical compression was (65.3 鹵8.6) cm / s, (64.8 鹵8.9) cm / s, (33.7 鹵8.4) cm / s, (33.6 鹵8.5) cm / s, respectively, and the compensatory rates of left and right sides were 0.52 鹵0.13 鹵0.52 鹵0.122.The mean blood flow velocity of MCA before cervical compression was (65.3 鹵8.6) cm / s, (64.8 鹵8.9) cm / s, (33.6 鹵8.5) cm / s, respectively. There was no significant difference between the left and the right side (P0.05), the left and right end diastolic velocity of MCA were (47.0 鹵6.9) cm / s, (46.8 鹵7.7) cm / s, (27.2 鹵6.8) cm / s, (26.7 鹵7.1) / cm / s, respectively, and the compensatory rates of left and right sides were 0.58 鹵0.15 鹵0.57 鹵0.15 respectively. There was no significant difference between the left and the right side (P0.05). There was significant difference between peak systolic period and end-diastolic compensatory rate (P0.01), but there was no significant difference in other periods (P0.05). ConclusionTwo TCD can evaluate the compensatory effect of intracranial artery collateral in real time, and there is no significant difference between left and right. The compensatory effect at the end of diastole is obviously higher than that in peak systolic period.
【作者單位】： 深圳市寶安區(qū)中心醫(yī)院;
【基金】：深圳市寶安區(qū)科持計劃社會公益(醫(yī)療衛(wèi)生類)項目(2015119)
【分類號】：R445.1;R743

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