用于预测冠状动脉计算机断层扫描血管造影中血流限制性狭窄的简化伯努利公式。
Simplified Bernoulli formula to predict flow limiting stenosis at coronary computed tomography angiography.
作者信息
Tomizawa Nobuo, Yamamoto Kodai, Inoh Shinichi, Nojo Takeshi, Nakamura Sunao
机构信息
Department of Radiology, New Tokyo Hospital, 1271 Wanagaya, Matsudo, Chiba 270-2232, Japan.
Department of Radiology, New Tokyo Hospital, 1271 Wanagaya, Matsudo, Chiba 270-2232, Japan.
出版信息
Clin Imaging. 2018 Sep-Oct;51:104-110. doi: 10.1016/j.clinimag.2018.01.018. Epub 2018 Feb 6.
OBJECTIVE
To compare the diagnostic performance of estimated energy loss (EEL) with diameter stenosis (DS) to estimate significant stenosis by fractional flow reserve (FFR).
MATERIALS AND METHODS
One hundred twenty-five patients were included. EEL was calculated using DS, lesion length, minimal lumen area and left ventricular volume. FFR ≤ 0.80 was determined significant.
RESULTS
EEL improved the accuracy from 63% (95% confidence interval (CI): 55-72%) to 83% (95% CI: 75-89%, p < 0.0001). EEL increased the area under the receiver operating characteristics curve from 0.63 to 0.85 (p < 0.0001).
CONCLUSIONS
EEL improved the diagnostic performance to detect functionally significant stenosis than DS.
目的
比较估计能量损失（EEL）与直径狭窄（DS）在通过血流储备分数（FFR）评估显著狭窄方面的诊断性能。
材料与方法
纳入125例患者。使用DS、病变长度、最小管腔面积和左心室容积计算EEL。FFR≤0.80被判定为显著狭窄。
结果
EEL将准确率从63%（95%置信区间（CI）：55 - 72%）提高到83%（95%CI：75 - 89%，p<0.0001）。EEL使受试者工作特征曲线下面积从0.63增加到0.85（p<0.0001）。
结论
与DS相比，EEL在检测功能性显著狭窄方面提高了诊断性能。
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