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首页> 外文期刊>Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine >High–Frame Rate Vector Flow Imaging of the Carotid Bifurcation in Healthy Adults: Comparison With Color Doppler Imaging
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High–Frame Rate Vector Flow Imaging of the Carotid Bifurcation in Healthy Adults: Comparison With Color Doppler Imaging

机译：健康成年人颈动脉分叉的高帧率矢量流成像：与彩色多普勒成像的比较

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Objectives To evaluate the carotid bifurcation in healthy adults using a commercial system equipped with high–frame rate vector flow imaging (VFI) based on the plane wave and to compare VFI with color Doppler imaging. Methods Carotid bifurcation diameters and flow characteristics of 60 vessels in 60 healthy volunteers were evaluated quantitatively and qualitatively to assess complex flow patterns and their extension and duration. Results Complex flow in the internal carotid artery (ICA) was associated with a statistically significant difference in the ΔICA sinus‐to‐common carotid artery (CCA) diameter ratio (the relative change in diameter between the CCA and ICA sinus.) Vector flow imaging and color Doppler imaging were in accordance when detecting complex flow in 96.7% of cases; in 3.3% of cases, only VFI identified small recirculation areas of short duration. Vector flow imaging highlighted a larger extension of the complex flow (mean?±?SD, 47.7?±?28.5 mm~(2); median, 45.5 mm~(2)) compared with color Doppler imaging (mean, 29.2?±?19.9 mm~(2); median, 29.5 mm~(2)) and better depicted different complex flow patterns; a strong correlation (r ?=?0.84) was found between the ΔICA sinus‐to‐CCA diameter ratio and the complex flow extension. Vector flow imaging showed a longer duration of the flow disturbances (mean, 380?±?218 milliseconds; median, 352.5 milliseconds) compared with color Doppler imaging (mean, 325?±?206 milliseconds; median, 333 milliseconds), and there was a strong correlation (r ?=?0.92). Conclusions Vector flow imaging is as effective as color Doppler imaging in the detection of flow disturbances, but it is more powerful in the assessment of complex flow patterns.
机译：目的使用装备有基于平面波的高帧频矢量流成像（VFI）的商业系统评估健康成年人的颈动脉分叉，并将VFI与彩色多普勒成像进行比较。方法对60例健康志愿者的60支血管的颈动脉分叉直径和血流特征进行定量和定性评估，以评估其复杂的血流模式及其延伸和持续时间。结果颈内动脉（ICA）的复杂血流与ΔICA窦与颈总动脉（CCA）直径比（CCA和ICA窦之间直径的相对变化）的统计学显着性差异相关。 96.7％的病例发现复杂血流时，彩色多普勒显像符合要求;在3.3％的情况下，只有VFI可以识别出持续时间短的小再循环区域。与彩色多普勒成像（平均值为29.2±±2）相比，矢量流成像显示出复数流的扩展范围更大（平均值±SD，47.7±28.5 mm〜（2）;中位数45.5 mm〜（2））。 19.9 mm〜（2）;中位数29.5 mm〜（2））更好地描绘了不同的复杂流型;在ΔICA窦与CCA的直径比与复数流动扩展之间发现了很强的相关性（ = 0.84）。与彩色多普勒成像（平均325？±？206毫秒;中值333毫秒）相比，矢量流成像显示的流量扰动持续时间更长（平均380？±？218毫秒;中值352.5毫秒）。相关性强（r≥0.92）。结论矢量流成像在检测流扰动方面与彩色多普勒成像一样有效，但在评估复杂流型方面更强大。

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