Potential influence of invisible coronary collateral circulation on fractional flow reserve of donor artery in the presence of severe stenosis of receiving artery

2014 ◽  
Vol 30 (3) ◽  
pp. 266-269
Author(s):  
Hiroto Tamaru ◽  
Kenichi Fujii ◽  
Masashi Fukunaga ◽  
Takahiro Imanaka ◽  
Kojiro Miki ◽  
...  
Keyword(s):  
Fractional Flow Reserve ◽  
Collateral Circulation ◽  
Potential Influence ◽  
Fractional Flow ◽  
Severe Stenosis ◽  
Coronary Collateral Circulation ◽  
Coronary Collateral ◽  
Flow Reserve ◽  
Donor Artery

Fractional flow reserve — The influence of the collateral circulation

2009 ◽  
Vol 132 (3) ◽  
pp. e109-e110 ◽  
Author(s):  
Narbeh Melikian ◽  
Thomas Cuisset ◽  
Michalis Hamilos ◽  
Bernard De Bruyne
Keyword(s):  
Fractional Flow Reserve ◽  
Collateral Circulation ◽  
Fractional Flow ◽  
Flow Reserve

Fractional flow reserve for a mild stenosis on the donor artery to chronic total occlusion

2012 ◽  
Vol 28 (2) ◽  
pp. 193-196 ◽  
Author(s):  
Harue Sasai ◽  
Kenichi Sakakura ◽  
Koichi Yuri ◽  
Hiroshi Wada ◽  
Kenshiro Arao ◽  
...  
Keyword(s):  
Fractional Flow Reserve ◽  
Chronic Total Occlusion ◽  
Fractional Flow ◽  
Total Occlusion ◽  
Flow Reserve ◽  
Mild Stenosis ◽  
Donor Artery

scholarly journals TCT-310 Recanalization Of Chronic Total Coronary Occlusions, The Influence On Collateral Donor Artery Physiology & Fractional Flow Reserve

2014 ◽  
Vol 64 (11) ◽  
pp. B89
Author(s):  
Andrew Ladwiniec ◽  
Michael Cunnington ◽  
Adam N. Mather ◽  
Albert Alahmar ◽  
Richard M. Oliver ◽  
...  
Keyword(s):  
Fractional Flow Reserve ◽  
Fractional Flow ◽  
Flow Reserve ◽  
Donor Artery ◽  
Total Coronary Occlusions

scholarly journals Coronary Collateral Circulation and Myocardial Blood Flow Reserve

Circulation ◽  
1972 ◽  
Vol 46 (1) ◽  
pp. 84-94 ◽  
Author(s):  
SUZANNE B. KNOEBEL ◽  
PAUL L. MCHENRY ◽  
JOHN F. PHILLIPS ◽  
FEBREL J. PAULETTO
Keyword(s):  
Blood Flow ◽  
Myocardial Blood Flow ◽  
Collateral Circulation ◽  
Coronary Collateral Circulation ◽  
Coronary Collateral ◽  
Flow Reserve ◽  
Myocardial Blood Flow Reserve

Influence of Variable Native Arterial Diameter on Fractional Flow Reserve: An In-Vitro Study

2012 ◽  
Author(s):  
Ishan Goswami ◽  
Srikara V. Peelukhana ◽  
Marwan Al-Rjoub ◽  
Lloyd H. Back ◽  
Rupak K. Banerjee
Keyword(s):  
Fractional Flow Reserve ◽  
In Vitro Study ◽  
Fractional Flow ◽  
Arterial Diameter ◽  
Severe Stenosis ◽  
Throat Region ◽  
Flow Reserve ◽  
Significant Difference ◽  
Arterial Diameters

Fractional flow reserve (FFR), the ratio of the pressures distal (Pd) and proximal (Pa) to a stenosis, and coronary flow reserve (CFR), the ratio of flows at maximal vasodilation to the resting condition, are widely used for determining the functional severity of a coronary artery stenosis. However, the diameter of the native artery might influence the FFR values. Therefore, using an in-vitro experimental study, we tested the variation of FFR for two arterial diameters, 2.5 mm (N1) and 3 mm (N2). We hypothesize that FFR is not influenced by native arterial diameter. For both N1 and N2, vasodilation-distal perfusion pressure (CFR-Prh) curves were obtained using a 0.35 mm guidewire by simulating physiologic flows under different blockage conditions: mild (64% area stenosis (AS)), intermediate (80% AS) and severe (90% AS). The FFR values for the two arterial models differed insignificantly, within 3%, for mild and intermediate stenoses but differed appreciably for severe stenosis (∼25%). This significant difference in FFR values for severe stenosis can be attributed to relatively larger difference in guidewire obstruction effect at the stenotic throat region of the two native arterial models. These findings confirm that FFR will not differ for the clinically relevant cases of mild and intermediate stenosis for different arterial diameters.

scholarly journals Collateral Donor Artery Physiology and the Influence of a Chronic Total Occlusion on Fractional Flow Reserve

2015 ◽  
Vol 8 (4) ◽  
Author(s):  
Andrew Ladwiniec ◽  
Michael S. Cunnington ◽  
Jennifer Rossington ◽  
Adam N. Mather ◽  
Albert Alahmar ◽  
...  
Keyword(s):  
Fractional Flow Reserve ◽  
Chronic Total Occlusion ◽  
Fractional Flow ◽  
Total Occlusion ◽  
Flow Reserve ◽  
Donor Artery
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