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Clinical value of MRI T2-mapping quantitative assessment of carotid plaque.

MRI T2-mapping定量评价颈动脉斑块的临床价值 [j].

  • 影响因子:1.59
  • DOI:10.1177/0284185119894216
  • 作者列表:"Huang S","Gong X","Guan S","Zheng S","Li F","Xu Q","Pang X
  • 发表时间:2020-08-01
Abstract

BACKGROUND:Stroke is a severe health problem, and magnetic resonance imaging (MRI) plays a significant role in stroke. PURPOSE:To investigate the clinical value of MRI T2-mapping in carotid artery plaque. MATERIAL AND METHODS:To locate the plaque in the carotid artery, 25 patients with carotid atherosclerosis were examined by 3.0-T MRI with three-dimensional (3D) time-of-flight and 3D fast spin-echo (FSE) T1-weighted scanning. The original images were obtained after T2-mapping (multi-spin-echo sequence) scanning. The T2 values of the plaque in the narrowest lumen were measured on T2 maps after postprocessing of the original images. Based on the symptoms, the patients were divided into two sub-groups; independent sample t-test was employed to compare the difference between the T2 values of the plaque in the two groups. We evaluated the optimal threshold and diagnostic efficacy of T2 values in predicting cerebrovascular symptoms by the receiver operating characteristic (ROC) curve. RESULTS:The T2 values of the carotid artery plaque in symptomatic and asymptomatic patients were 111.43 ± 46.54 ms and 59.25 ± 39.77 ms, respectively (t = -3.421, P < 0.01). ROC analysis showed that the T2 value of 65.38 ms was the optimal threshold to predict cerebrovascular symptoms. The specificity, sensitivity, and accuracy attained were 94.1% (16/17), 93.3% (14/15), and 93.8% (30/32), respectively. CONCLUSION:We quantitatively assessed carotid plaque components by MRI T2-mapping technology. The T2 values of the carotid plaque were associated with cerebrovascular symptoms. The T2 values of the symptomatic plaque group were significantly higher than those of the asymptomatic group.

摘要

背景: 脑卒中是一个严重的健康问题,磁共振成像 (MRI) 在脑卒中的发病中起着重要作用。 目的: 探讨颈动脉斑块MRI T2-mapping的临床应用价值。 材料与方法: 对25例颈动脉粥样硬化患者进行3.0 T MRI三维 (3D) 飞行时间和3D快速自旋回波 (FSE) T1-weighted扫描。在T2-mapping (多自旋回波序列) 扫描之后获得原始图像。在原始图像后处理后,在T2图上测量最窄管腔中的斑块的T2值。根据症状将患者分为两个亚组,采用独立样本t检验比较两组斑块T2值的差异。我们通过受试者工作特征 (ROC) 曲线评估了T2值预测脑血管症状的最佳阈值和诊断功效。 结果: 有症状和无症状患者颈动脉斑块T2值分别为111.43 ± 46.54 ms和59.25 ± 39.77 ms (t =-3.421,p <0.01)。ROC分析显示,65.38 ms ms的T2值是预测脑血管症状的最佳阈值。特异性、敏感性和准确性分别为94.1% (16/17) 、93.3% (14/15) 和93.8% (30/32)。 结论: 我们通过MRI T2-mapping技术定量评估颈动脉斑块成分。颈动脉斑块的T2值与脑血管症状相关。有症状斑块组T2值明显高于无症状组。

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影响因子:2.98
发表时间:2020-01-01
DOI:10.1136/neurintsurg-2019-014962
作者列表:["Guo W","Liu H","Tan Z","Zhang X","Gao J","Zhang L","Guo H","Bai H","Cui W","Liu X","Wu X","Luo J","Qu Y"]

METHODS:BACKGROUND:The main surgical techniques for spontaneous basal ganglia hemorrhage include stereotactic aspiration, endoscopic aspiration, and craniotomy. However, credible evidence is still needed to validate the effect of these techniques. OBJECTIVE:To explore the long-term outcomes of the three surgical techniques in the treatment of spontaneous basal ganglia hemorrhage. METHODS:Five hundred and sixteen patients with spontaneous basal ganglia hemorrhage who received stereotactic aspiration, endoscopic aspiration, or craniotomy were reviewed retrospectively. Six-month mortality and the modified Rankin Scale score were the primary and secondary outcomes, respectively. A multivariate logistic regression model was used to assess the effects of different surgical techniques on patient outcomes. RESULTS:For the entire cohort, the 6-month mortality in the endoscopic aspiration group was significantly lower than that in the stereotactic aspiration group (odds ratio (OR) 4.280, 95% CI 2.186 to 8.380); the 6-month mortality in the endoscopic aspiration group was lower than that in the craniotomy group, but the difference was not significant (OR=1.930, 95% CI 0.835 to 4.465). A further subgroup analysis was stratified by hematoma volume. The mortality in the endoscopic aspiration group was significantly lower than in the stereotactic aspiration group in the medium (≥40-<80 mL) (OR=2.438, 95% CI 1.101 to 5.402) and large hematoma subgroup (≥80 mL) (OR=66.532, 95% CI 6.345 to 697.675). Compared with the endoscopic aspiration group, a trend towards increased mortality was observed in the large hematoma subgroup of the craniotomy group (OR=8.721, 95% CI 0.933 to 81.551). CONCLUSION:Endoscopic aspiration can decrease the 6-month mortality of spontaneous basal ganglia hemorrhage, especially in patients with a hematoma volume ≥40 mL.

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DOI:10.1002/jcu.22762
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