Fractional 英 ['frækʃ(ə)n(ə)l]
释义 adj. 部分的；[数] 分数的，小数的
例句 Speech is fractional；silence is integral.
Reserve 英 [rɪ'zɜːv]
释义 v. 预订（座位等）；储备；拥有（某种权利）
例句 The purpose of this model is to provide theoretical basis for the loan loss reserve fund for the commercial bank.
作者： Antonio Maria Leone
期刊：J Am Heart Assoc
Coronary CT angiography is an alternative anatomically based imaging modality used to assess coronary artery disease. However, because of its limited positive predictive value, it can lead to increased downstream use of invasive coronary angiography . Recently, participant specific coronary CT angiography data have been combined with computational fluid dynamic models,allowing for noninvasive determination of the fractional flow reserve derived from coronary CT angiography (FFRCT).FFRCT analysis could be performed in 87%–88% of coronary CT angiography data sets; however, a more recent substudy of the Prospective Multicenter Imaging Study for Evaluation of Chest Pain, or PROMISE, trial found that because of low-quality images, only 67% of coronary CT angiography data sets could be used for FFRCT analysis .