本文關(guān)鍵詞： 腹腔動脈 中弓韌帶壓迫綜合征 超聲檢查 多普勒 彩色　出處：《中國醫(yī)學(xué)影像技術(shù)》2017年02期 　論文類型：期刊論文

【摘要】：目的探討彩色多普勒超聲診斷中弓韌帶壓迫綜合征(MALS)的價值。方法采用彩色多普勒超聲對41例腹痛患者的腹腔動脈進(jìn)行篩查,觀察腹腔干起始段走行、管腔內(nèi)徑,再分別測量起始段狹窄處平靜狀態(tài)、深吸氣末、深呼氣末收縮期峰值速度(PSV_(calm)、PSV_(insp)、PSV_(exp)),并計算深呼氣末與深吸氣末血流速度變化率(流速變化率)。對照組為100例接受腹部超聲檢查的無腹痛患者,分別測量上述各參數(shù),比較MALS患者(MALS組)和對照組各參數(shù)的差異。以CTA結(jié)果為金標(biāo)準(zhǔn),構(gòu)建ROC曲線分析PSV_(exp)、流速變化率以及兩者聯(lián)合診斷MALS的價值。結(jié)果彩色多普勒超聲共檢出20例MALS,CTA檢出19例。超聲診斷MALS的敏感度為89.47%(17/19)、特異度為86.36%(19/22)、準(zhǔn)確率為87.80%(36/41)、陽性預(yù)測值為85.00%(17/20)。MALS組腹腔干起始段血流峰值速度及流速變化率明顯高于對照組(P均0.01)。PSV_(exp)、流速變化率的ROC曲線下面積分別為0.936、0.920(P0.01)。以PSV_(Exp)=330cm/s為閾值,診斷MALS的敏感度和特異度分別為85.7%和90.9%。當(dāng)流速變化率=120%時,診斷MALS的敏感度和特異度分別為87.7%和89.4%。結(jié)論彩色多普勒超聲可清晰顯示腹腔干狹窄的部位、狹窄程度;將PSV_(exp)≥330cm/s或流速變化率≥120%或兩者聯(lián)合作為超聲參考指標(biāo)評估MALS,均有較高的診斷價值,且兩者聯(lián)合診斷的特異度最高。
[Abstract]:Objective to evaluate the value of color Doppler ultrasonography in diagnosis of medial arcuate ligament compression syndrome (MALSs). Methods 41 patients with abdominal pain were screened by color Doppler ultrasound, and the initial segment of abdominal trunk and the diameter of the lumen were observed. And then measure the quiet state of the narrow area of the starting section, and the deep inspiratory end, The peak systolic velocity of deep end expiratory period (PSV) was measured by the peak systolic velocity of PSV. The change rate of blood flow velocity at the end of deep expiratory and deep inspiratory was calculated. The control group consisted of 100 patients without abdominal pain who were examined by abdominal ultrasound, and the above parameters were measured separately. To compare the difference of the parameters between the MALS patients and the control group. The results of CTA were taken as the gold standard. The ROC curve was constructed to analyze the value of the two methods in the diagnosis of MALS. Results the color Doppler ultrasound detected 19 cases of MALS-CTA in 20 cases. The sensitivity of ultrasonic diagnosis of MALS was 89.4747 / 17 / 19, the specificity was 86.3636 / 1922%, the accuracy rate was 87.803636 / 41%, and the positive pre-diagnosis was positive. The changes of peak velocity and velocity of blood flow in the initial stage of celiac trunk in the group of 17 / 20g 路mals were significantly higher than those in the control group (P = 0.01). The area under the ROC curve of the velocity change rate was 0.936 ~ 0.920 / P0.01a, respectively. The threshold value of PSV_(Exp)=330cm/s was taken as the threshold. The sensitivity and specificity of the diagnosis of MALS were 85.7% and 90.9.The sensitivity and specificity of diagnosing MALS were 87.7% and 89.4when the velocity change rate was 120.Conclusion Color Doppler ultrasound can clearly show the stenoses of the celiac trunk and the degree of stenosis. Using PSV / s 鈮，

本文編號：1505297