Paradoxical changes of coronary computed tomography derived fractional flow reserve

A total of 1335 outpatients with suspected coronary artery disease and who underwent computed tomography derived fractional flow reserve (FFRCT) analysis were examined. Only four patients showed reverse increase of FFRCT from the proximal to the distal vessel and all of them had a large ramus artery...

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Published inEchocardiography (Mount Kisco, N.Y.) Vol. 39; no. 2; pp. 398 - 403
Main Authors Tsugu, Toshimitsu, Tanaka, Kaoru, Nagatomo, Yuji, Belsack, Dries, De Maeseneer, Michel, De Mey, Johan
Format Journal Article
LanguageEnglish
Published United States 01.02.2022
Subjects
bifurcation angle
Computed Tomography Angiography - methods
Coronary Angiography - methods
Coronary Artery Disease - diagnostic imaging
Coronary Stenosis
Coronary Vessels - diagnostic imaging
FFRCT
Fractional Flow Reserve, Myocardial
Humans
Predictive Value of Tests
ramus coronary artery
Severity of Illness Index
Tomography, X-Ray Computed
turbulence
FFRCT
ramus coronary artery
turbulence
bifurcation angle
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Summary:A total of 1335 outpatients with suspected coronary artery disease and who underwent computed tomography derived fractional flow reserve (FFRCT) analysis were examined. Only four patients showed reverse increase of FFRCT from the proximal to the distal vessel and all of them had a large ramus artery (RAM). Of all parameters (vessel length, lumen volume, plaque volume, and left ventricular mass), only the bifurcation angle was significantly higher in reverse increase of FFRCT with RAM group (106.0 ± 15.8°) than normal FFRCT with RAM group (82.6 ± 21.7°) and normal FFRCT without RAM group (66.9 ± 21.1°).
ISSN:0742-2822
1540-8175
DOI:10.1111/echo.15307