scholarly journals Letter by Layland et al Regarding Article, “Validation of Intravascular Ultrasound–Derived Parameters With Fractional Flow Reserve for Assessment of Coronary Stenosis Severity”

2011 ◽  
Vol 4 (3) ◽  
Author(s):  
Jamie Layland ◽  
Andrew Wilson ◽  
Robert Whitbourn ◽  
Andrew MacIsaac
Keyword(s):  
Intravascular Ultrasound ◽  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Fractional Flow ◽  
Flow Reserve ◽  
Stenosis Severity

AS-106 Validation of Intravascular Ultrasound Derived Parameters with Fractional Flow Reserve for Assessment of Coronary Stenosis Severity

2011 ◽  
Vol 107 (8) ◽  
pp. 113A
Author(s):  
Soo-Jin Kang ◽  
Jong-Young Lee ◽  
Jung-Min Ahn ◽  
Gary S. Mintz ◽  
Won-Jang Kim ◽  
...  
Keyword(s):  
Intravascular Ultrasound ◽  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Fractional Flow ◽  
Flow Reserve ◽  
Stenosis Severity

scholarly journals VALIDATION OF INTRAVASCULAR ULTRASOUND DERIVED PARAMETERS WITH FRACTIONAL FLOW RESERVE FOR ASSESSMENT OF CORONARY STENOSIS SEVERITY

2011 ◽  
Vol 57 (14) ◽  
pp. E1857
Author(s):  
Soo-Jin Kang ◽  
Jong-Young Lee ◽  
Jung-Min Ahn ◽  
Gary S. Mintz ◽  
Won-Jang Kim ◽  
...  
Keyword(s):  
Intravascular Ultrasound ◽  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Fractional Flow ◽  
Flow Reserve ◽  
Stenosis Severity

scholarly journals Lesion Length Improves Diagnostic Accuracy of Intravascular Ultrasound for Detecting Functional Intermediate Coronary Stenosis Evaluated With Coronary Angiography-Derived Fractional Flow Reserve in Non-left Main Artery

2021 ◽  
Vol 8 ◽  
Author(s):  
Menghuan Li ◽  
Iokfai Cheang ◽  
Yuan He ◽  
Shengen Liao ◽  
Hui Wang ◽  
...  
Keyword(s):  
Coronary Angiography ◽  
Diagnostic Accuracy ◽  
Intravascular Ultrasound ◽  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Lesion Length ◽  
Left Main ◽  
Fractional Flow ◽  
Main Artery ◽  
Flow Reserve

Objective: Intravascular ultrasound (IVUS) parameters, for example, minimal lumen area (MLA) and area stenosis (AS), poorly identified functional intermediate coronary stenosis (ICS). For detecting functional ICS defined by coronary angiography-derived fractional flow reserve (caFFR), our study aims to determine whether IVUS parameters integrated with lesion length (LL) by three-dimensional quantitative coronary analysis (3D-QCA) could improve diagnostic value.Methods: A total of 111 patients with 122 ICS lesions in the non-left main artery were enrolled. MLA and AS were calculated in all lesions by IVUS. Diameter stenosis (DS%) and LL were measured by 3D-QCA. caFFR was computed by the proprietary fluid dynamic algorithm, a caFFR ≤ 0.8 was considered as functional stenosis. Receiver-operating curve analyses were used to compare the diagnostic accuracy among indices to predict functional stenoses.Results: Mean caFFR values in all lesions were 0.86 ± 0.09. Lesions with caFFR ≤ 0.8 showed lower MLA and higher AS (MLA: 3.3 ± 0.8 vs. 4.1 ± 1.2, P = 0.002; AS: 71.3 ± 9.6% vs. 63.5 ± 1.3%, P = 0.007). DS% and LL were more severe in lesions with caFFR ≤ 0.8 (DS%: 45.5 ± 9.6% vs. 35.5 ± 8.2%, P < 0.001; LL: 31.6 ± 12.9 vs. 21.0 ± 12.8, P < 0.001). caFFR were correlated with MLA, AS, and LL (MLA: r = 0.36, P < 0.001; AS: r = −0.36, P < 0.001; LL: r = −0.41, P < 0.001). Moreover, a multiple linear regression analysis demonstrated that MLA (β = 0.218, P = 0.013), AS (β = −0.197, P = 0.029), and LL (β = −0.306, P > 0.001) contributed significantly to the variation in caFFR. The best cutoff value of MLA, AS, and LL for predicting caFFR ≤ 0.8 were 3.6 mm2, 73%, and 26 mm, with area under the curve (AUC) of 0.714, 0.688, and 0.767, respectively. Combined with MLA, AS, and LL for identifying functional ICS, the accuracy was the highest among study methods (AUC: 0.845, P < 0.001), and was significantly higher than each single method (All P < 0.05).Conclusion: Lesion length can improve the diagnostic accuracy of IVUS-derived parameters for detecting functional ICS.

Relationship between resting full‐cycle ratio and fractional flow reserve in assessments of coronary stenosis severity

2020 ◽  
Vol 96 (4) ◽  
Author(s):  
Takahiro Muroya ◽  
Hiroaki Kawano ◽  
Shiro Hata ◽  
Hiroki Shinboku ◽  
Koichiro Sonoda ◽  
...  
Keyword(s):  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Fractional Flow ◽  
Flow Reserve ◽  
Stenosis Severity

scholarly journals 1157-42 Fractional flow reserve versus intravascular ultrasound for decision-making in equivocal left main coronary stenosis

2004 ◽  
Vol 43 (5) ◽  
pp. A92 ◽  
Author(s):  
Venu Jasti ◽  
Venkata Yalamanchili ◽  
Eugene Ivan ◽  
Barry Merrill ◽  
Mukul Chandra ◽  
...  
Keyword(s):  
Decision Making ◽  
Intravascular Ultrasound ◽  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Left Main ◽  
Fractional Flow ◽  
Flow Reserve

Combining Baseline Distal-to-Aortic Pressure Ratio and Fractional Flow Reserve in the Assessment of Coronary Stenosis Severity

2015 ◽  
Vol 8 (13) ◽  
pp. 1681-1691 ◽  
Author(s):  
Mauro Echavarría-Pinto ◽  
Tim P. van de Hoef ◽  
Martijn A. van Lavieren ◽  
Sukhjinder Nijjer ◽  
Borja Ibañez ◽  
...  
Keyword(s):  
Fractional Flow Reserve ◽  
Coronary Stenosis ◽  
Pressure Ratio ◽  
Aortic Pressure ◽  
Fractional Flow ◽  
Flow Reserve ◽  
Stenosis Severity
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