Tomizawa Nobuo, Yamamoto Kodai, Inoh Shinichi, Nojo Takeshi, Nakamura Sunao
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.
Clin Imaging. 2018 Sep-Oct;51:104-110. doi: 10.1016/j.clinimag.2018.01.018. Epub 2018 Feb 6.
To compare the diagnostic performance of estimated energy loss (EEL) with diameter stenosis (DS) to estimate significant stenosis by fractional flow reserve (FFR).
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.
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).
EEL improved the diagnostic performance to detect functionally significant stenosis than DS.
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。
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。
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）。
与DS相比，EEL在检测功能性显著狭窄方面提高了诊断性能。
