Left main coronary artery diameter – A correlation between intravascular ultrasound and quantitative coronary angiography

Goel, Pravin K.; Vora, Parshva Liladhar; Sahu, Ankit Kumar; Khanna, Roopali

doi:10.1016/j.ihj.2021.09.009

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…A comparison of our study with other studies is shown in Table 2. The diameter of the left main vessel was similar to the findings of Goel et al 7 who used IVUS to determine left main diameter in an Indian population. However, ours is the first study to have used OPTICROSS 6 (40 MHz) and OPTICROSS HD (60 MHz), which we believe to be superior technologies as compared to previous-generation IVUS and hence give a better understanding of the left main segment.…”

Section: Discussionsupporting

confidence: 85%

IVUS determination of normal left main stem artery size and plaque burden, and correlation with body surface area in an Indian population

Punamiya¹,

Jha²,

Punamiya³

et al. 2022

AsiaIntervention

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Section: Discussionsupporting

confidence: 85%

IVUS determination of normal left main stem artery size and plaque burden, and correlation with body surface area in an Indian population

Punamiya¹,

Jha²,

Punamiya³

et al. 2022

AsiaIntervention

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“…This may be explained by the improper sizing of the stent at proximal segments depending only on angiographic assessment. Vessel under sizing when using angiographic assessment has been recently reported in a recent study done by Goel et al, [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

Value of stent boost imaging in decision making after coronary stenting

Mansour,

Mohamed,

Ibrahim

et al. 2023

Int J Cardiovasc Imaging

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Background: Several studies reported the comparability of digital stent enhancement techniques (including stent boost imaging) in detecting suboptimal results of coronary stenting with Intra Vascular Ultrasound and optical coherence tomography. Aims: to assess results of stent deployment and determine the incidence of suboptimal results requiring changing final decision using stent boost imaging. Methods: This cross-sectional study included 120 patients eligible for PCI were recruited during a period of one year (January 2021 to 2022) using DES. Results: Suboptimal results were found in 38% of the PCI cases with stents (angiography guided). Importantly it was found that improper lesion preparation in our practice could not help improving stent optimization. Also, angiography guided PCI has significant incidence of suboptimal results. Digital stent enhancement techniques like stent boost have significant and important value in better decision making. After adjusting for age and sex, six factors were identified as independent predictors for final decision change (stent length, LAD/RCA affection, proximal segment affection, calcification, and optical coherence tomography. Conclusion: This study has confirmed the utility of stent boost for the optimization of PCI in daily practice. Stent Boost is a simple and costless technique that provides an accurate assessment of a deployed stent without extending the procedure time and without more risk. It appears to be useful for the immediate evaluation of stent expansion and optimization of PCI by additional post-dilatation, when appropriate. Future studies are needed to determine whether Stent Boost data will correlate with adverse long-term clinical outcomes in patients undergoing PCI.

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“…To choose the diameter range of coronary arteries according to the classification of studies presented in Table A1 of References 37–44 in Appendix A, a diameter of 3 mm was chosen for this research.…”

Section: Methodsmentioning

confidence: 99%

Computational fluid dynamics of coronary arteries with implanted stents: Effects of Newtonian and non‐Newtonian blood flows

Ahadi,

Biglari,

Azadi

et al. 2023

Engineering Reports

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This study introduces and compares computational fluid dynamics of Newtonian and non‐Newtonian blood flows in coronary arteries, with and without considering stents. Three blood flow models, including Newtonian, Carreau, and non‐Newtonian power‐law models, were simulated to investigate their effect, and the solution algorithm includes drawing the geometry, creating the desired mesh, and then simulating Newtonian and non‐Newtonian blood flow different models and comparing them with each other, is presented in the article. A Newtonian fluid model has been commonly used in the simulation of blood flow, whereas blood has non‐Newtonian properties due to the nature of a solution containing suspended particles. The goal of this research is to investigate the differences between the models built with Newtonian and non‐Newtonian fluid assumptions. In addition, a stent was designed and the effect of the stent on blood flow parameters was investigated for all three flow models, including Newtonian, Carreau, and non‐Newtonian power‐law models. Stents are medical devices that can be placed in arteries to open up blood flow in a blocked vessel. Stents can affect the wall shear stress. Knowing the slight deformation of the shear stress makes the importance of stent implantation and also helps to optimize the design of the intravascular stent, which can affect the occlusion of the vessels. The distribution of the velocity, pressure, and wall shear stress in all blood flow models with and without considering the effect of stents have been investigated and finally compared. Therefore, in general, the innovation of this article is to find the effect of implanted stents on blood flow parameters with different blood flow models, both Newtonian and non‐Newtonian. A comparison of Newtonian and non‐Newtonian flows showed that in the case of the Carreau non‐Newtonian model, the wall shear stress was higher. In addition, in the results of the geometric model with a stent effect compared to the geometric model without a stent effect, it is evident that there was a higher velocity and wall shear stress.

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Left main coronary artery diameter – A correlation between intravascular ultrasound and quantitative coronary angiography

Cited by 11 publications

References 13 publications

IVUS determination of normal left main stem artery size and plaque burden, and correlation with body surface area in an Indian population

IVUS determination of normal left main stem artery size and plaque burden, and correlation with body surface area in an Indian population

Value of stent boost imaging in decision making after coronary stenting

Computational fluid dynamics of coronary arteries with implanted stents: Effects of Newtonian and non‐Newtonian blood flows

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