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首页> 外文期刊>Magnetic resonance imaging: An International journal of basic research and clinical applications >Assessment of myocardial perfusion using multisection first-pass MRI and color-coded parameter maps: a comparison to 99mTc Sesta MIBI SPECT and systolic myocardial wall thickening analysis.
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Assessment of myocardial perfusion using multisection first-pass MRI and color-coded parameter maps: a comparison to 99mTc Sesta MIBI SPECT and systolic myocardial wall thickening analysis.

机译:使用多节首过MRI和彩色编码的参数图评估心肌灌注:与99mTc Sesta MIBI SPECT和收缩期心肌壁增厚分析的比较。

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The most recently reported magnetic resonance first-pass myocardial perfusion studies were restricted to single slice imaging or a data analysis based on interactively placed regions of interest. This study was designed to investigate a new saturation recovery TurboFLASH sequence for multisection myocardial perfusion imaging and to develop a pixel-based software tool to calculate qualitative perfusion parameters. The findings of perfusion imaging were compared to percent systolic myocardial wall thickening analysis and 99mTc Sesta MIBI SPECT. Six healthy volunteers and twelve patients with proven coronary artery disease (CAD) or chronic myocardial infarction were examined. Diagnostic images were acquired for all volunteers and patients with the multisection saturation recovery TurboFLASH sequence. Perfusion defects could be visualized on parameter maps for signal intensity increase over baseline and signal intensity upslope. Sensitivity and specificity were 76.9% and 97.1% for first-pass perfusion MRI, and respectively 84.6% and 94.3% for CINE imaging. All perfusion defects determined with 99mTc Sesta MIBI SPECT were identified by the combined analysis of myocardial perfusion and wall thickening. The presented software demonstrated a pixel-based analysis of first-pass perfusion studies and simplified image interpretation in a clinical setting. The combination of perfusion and wall motion imaging provided complementary information for the treatment of patients suffering from CAD.
机译:最近报道的磁共振首过心肌灌注研究仅限于单层成像或基于交互式放置的感兴趣区域的数据分析。这项研究旨在调查用于多节心肌灌注成像的新的饱和度恢复TurboFLASH序列,并开发一种基于像素的软件工具来计算定性灌注参数。将灌注成像的发现与收缩期心肌壁增厚百分比分析和99mTc Sesta MIBI SPECT进行比较。检查了六名健康志愿者和十二名已证明患有冠状动脉疾病(CAD)或慢性心肌梗塞的患者。使用多部分饱和度恢复TurboFLASH序列获取所有志愿者和患者的诊断图像。可以在参数图上显示灌注缺陷,以使信号强度在基线以上增加并且信号强度向上倾斜。首次灌注MRI的敏感性和特异性分别为76.9%和97.1%,CINE成像的敏感性和特异性分别为84.6%和94.3%。通过对心肌灌注和壁增厚的综合分析,可以确定使用99mTc Sesta MIBI SPECT确定的所有灌注缺陷。演示的软件演示了基于像素的首过灌注研究分析,并在临床环境中简化了图像解释。灌注和壁运动成像的结合为患有CAD的患者提供了补充信息。

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