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The Egyptian Heart Journal

Table 8 Description of the spectroscopy IFR of the affected vessels in the studied patients

From: Myocardial perfusion imaging by single-photon emission tomography (MPI SPECT) versus Instantaneous wave-free ratio (IFR) for assessment of functional significance of intermediate coronary artery lesions

Parameters

Values

IFR value

 Mean ± SD

0.89 ± 0.094

 Range (min-max)

(0.65–1.05)

 Median

0.92

IFR results no. (%):

 Positive

20(40)

 Negative

30(60)

  1. Scale data were presented as mean ±SD & categorical data were presented as number (%)
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