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Intravascular ultrasound

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https://www.readbyqxmd.com/read/29790954/clinical-use-of-intracoronary-imaging-part-1-guidance-and-optimization-of-coronary-interventions-an-expert-consensus-document-of-the-european-association-of-percutaneous-cardiovascular-interventions-endorsed-by-the-chinese-society-of-cardiology
#1
Lorenz Räber, Gary S Mintz, Konstantinos C Koskinas, Thomas W Johnson, Niels R Holm, Yoshinubo Onuma, Maria D Radu, Michael Joner, Bo Yu, Haibo Jia, Nicolas Menevau, Jose M de la Torre Hernandez, Javier Escaned, Jonathan Hill, Francesco Prati, Antonio Colombo, Carlo di Mario, Evelyn Regar, Davide Capodanno, William Wijns, Robert A Byrne, Giulio Guagliumi
This Consensus Document is the first of two reports summarizing the views of an expert panel organized by the European Association of Percutaneous Cardiovascular Interventions (EAPCI) on the clinical use of intracoronary imaging including intravascular ultrasound (IVUS) and optical coherence tomography (OCT). The first document appraises the role of intracoronary imaging to guide percutaneous coronary interventions (PCIs) in clinical practice. Current evidence regarding the impact of intracoronary imaging guidance on cardiovascular outcomes is summarized, and patients or lesions most likely to derive clinical benefit from an imaging-guided intervention are identified...
May 22, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29781836/relationship-between-left-main-coronary-artery-plaque-burden-and-nonleft-main-coronary-atherosclerosis-results-from-the-prospect-study
#2
Takehisa Shimizu, Gary S Mintz, Bernard De Bruyne, Naim Z Farhat, Shinji Inaba, Yang Cao, Steven P Marso, Giora Weisz, Patrick W Serruys, Gregg W Stone, Akiko Maehara
OBJECTIVES: Whether the severity of left main coronary artery (LMCA) disease reflects LMCA and overall coronary atherosclerotic burden is not known. We aimed to assess nonculprit LMCA disease characteristics and the relationship with atherosclerosis in the rest of the coronary arteries as well as patient outcomes. PATIENTS AND METHODS: In the PROSPECT study, 697 patients with acute coronary syndromes underwent three-vessel gray-scale and radiofrequency intravascular ultrasound after percutaneous coronary intervention...
May 17, 2018: Coronary Artery Disease
https://www.readbyqxmd.com/read/29781047/a-survey-on-coronary-atherosclerotic-plaque-tissue-characterization-in-intravascular-optical-coherence-tomography
#3
REVIEW
Alberto Boi, Ankush D Jamthikar, Luca Saba, Deep Gupta, Aditya Sharma, Bruno Loi, John R Laird, Narendra N Khanna, Jasjit S Suri
PURPOSE OF REVIEW: Atherosclerotic plaque deposition within the coronary vessel wall leads to arterial stenosis and severe catastrophic events over time. Identification of these atherosclerotic plaque components is essential to pre-estimate the risk of cardiovascular disease (CVD) and stratify them as a high or low risk. The characterization and quantification of coronary plaque components are not only vital but also a challenging task which can be possible using high-resolution imaging techniques...
May 21, 2018: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29774986/everolimus-drug-eluting-stent-performance-in-patients-with-long-coronary-lesions-the-multicenter-longprime-registry
#4
José Francisco Díaz Fernández, Santiago Jesús Camacho Freire, Juan Carlos Fernández Guerrero, Nicolas Delarche, Christophe Bretelle, Javier Zueco Gil, Ramón López Palop, Bruno García Del Blanco, Vicente Mainar Tello, Franck Albert
OBJECTIVES: To assess the efficacy and safety of the Xience Prime everolimus-eluting stent (EES) in long coronary lesions in a real-world population. BACKGROUND: Long lesions are considered difficult technically and in terms of achieving successful clinical outcomes. With first generation DES, MACE can be as high as 10% at a short-medium term follow-up. There are a few data available in this subset regarding the use of second generation DES METHODS: A prospective, multicenter registry of consecutive patients (aged 64...
May 18, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29765694/development-of-an-intravascular-ultrasound-elastography-based-on-a-dual-element-transducer
#5
Cho-Chiang Shih, Pei-Yu Chen, Teng Ma, Qifa Zhou, K Kirk Shung, Chih-Chung Huang
The ability to measure the elastic properties of plaques and vessels would be useful in clinical diagnoses, particularly for detecting a vulnerable plaque. This study demonstrates the feasibility of the combination of intravascular ultrasound (IVUS) and acoustic radiation force elasticity imaging for detecting the distribution of stiffness within atherosclerotic arteries ex vivo . A dual-frequency IVUS transducer with two elements was used to induce the propagation of the shear wave (by the 8.5 MHz pushing element) which could be simultaneously monitored by the 31 MHz imaging element...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29756199/borderline-bilateral-renal-artery-stenosis-assessed-with-high-resolution-angiography-intravascular-ultrasound-and-renal-fractional-flow-reserve-in-a-patient-with-renovascular-hypertension
#6
Kamil Zieliński, Łukasz Kalińczuk, Jacek Kądziela, Adam Witkowski
No abstract text is available yet for this article.
2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29754669/comparison-of-fractional-flow-reserve-and-intravascular-ultrasound-guided-intervention-strategy-for-clinical-outcomes-in-patients-with-intermediate-stenosis-flavour-rationale-and-design-of-a-randomized-clinical-trial
#7
Jeehoon Kang, Bon-Kwon Koo, Xinyang Hu, Joo Myung Lee, Joo-Yong Hahn, Hyoung-Mo Yang, Eun-Seok Shin, Chang-Wook Nam, Joon-Hyung Doh, Bong-Ki Lee, Chul Ahn, JianAn Wang, Seung-Jae Tahk
BACKGROUND: Coronary angiography has limitations in defining the ischemia-causing stenotic lesion, especially in cases with intermediate coronary stenosis. Fractional flow reserve (FFR) is a current standard method to define the presence of ischemia, and intravascular ultrasound (IVUS) is the most commonly used invasive imaging tool that can provide the lesion geometry and can provide the information on plaque vulnerability. The primary aim of this study is to compare the safety and efficacy of FFR-guided and IVUS-guided percutaneous coronary intervention (PCI) strategies in patients with intermediate coronary stenosis...
May 2018: American Heart Journal
https://www.readbyqxmd.com/read/29747829/local-low-shear-stress-and-endothelial-dysfunction-in-patients-with-nonobstructive-coronary-atherosclerosis
#8
Gerasimos Siasos, Jaskanwal D Sara, Marina Zaromytidou, Kyoung H Park, Ahmet Umit Coskun, Lilach O Lerman, Evangelos Oikonomou, Charles C Maynard, Dimitris Fotiadis, Kostas Stefanou, Michail Papafaklis, Lampros Michalis, Charles Feldman, Amir Lerman, Peter H Stone
BACKGROUND: Local hemodynamic factors are important determinants of atherosclerotic plaque development and progression. OBJECTIVES: The goal of this study was to determine the association between low endothelial shear stress (ESS) and microvascular and epicardial endothelial dysfunction in patients with early atherosclerosis. METHODS: Sixty-five patients (mean age 52 ± 11 years) with nonobstructive coronary atherosclerosis (luminal diameter stenosis <30%) were included...
May 15, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29743914/angiographic-co-registration-of-instantaneous-wave-free-ratio-and-intravascular-ultrasound-improves-functional-assessment-of-borderline-lesions-in-the-coronary-artery
#9
Jerzy Sacha, Przemysław Lipski, Piotr Feusette
No abstract text is available yet for this article.
2018: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/29738341/effect-of-pitavastatin-and-atorvastatin-on-regression-of-atherosclerosis-assessed-using-intravascular-ultrasound-a-meta-analysis
#10
Hui Liu, Mingjun Zhang, Delong Li, Jingjing Tian, Xuyang Wang, Jinyu Pan, Dian Liu, Xiaowei Li, Fengshuang An
BACKGROUND: The aim of this study is to compare the efficacy and safety of pitavastatin and atorvastatin using data from randomized-controlled trial pooled together by means of a meta-analysis and decide which is better. METHODS: PubMed, CENTRAL, Web of Knowledge, and ClinicalTrials.gov website were searched for randomized-controlled trials published until October 2016. Eligible studies comparing pitavastatin with atorvastatin head to head and reporting the outcome of low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), glycated hemoglobin, and intravascular ultrasound evaluation were enrolled...
May 5, 2018: Coronary Artery Disease
https://www.readbyqxmd.com/read/29733275/noninvasive-estimation-of-pressure-changes-using-2-d-vector-velocity-ultrasound-an-experimental-study-with-in-vivo-examples
#11
Jacob Bjerring Olesen, Carlos Armando Villagomez-Hoyos, Niclas Dechau Moller, Caroline Ewertsen, Kristoffer Lindskov Hansen, Michael Bachmann Nielsen, Bo Bech, Lars Lonn, Marie Sand Traberg, Jorgen Arendt Jensen
A noninvasive method for estimating intravascular pressure changes using 2-D vector velocity is presented. The method was first validated on computational fluid dynamic (CFD) data and with catheter measurements on phantoms. Hereafter, the method was tested in vivo at the carotid bifurcation and at the aortic valve of two healthy volunteers. Ultrasound measurements were performed using the experimental scanner SARUS, in combination with an 8 MHz linear array transducer for experimental scans and a carotid scan, whereas a 3...
May 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29730333/effect-of-metabolic-syndrome-and-aging-on-ca-2-dysfunction-in-coronary-smooth-muscle-and-coronary-artery-disease-severity-in-ossabaw-miniature-swine
#12
Jill K Badin, Rebecca S Bruning, Michael Sturek
BACKGROUND: Metabolic syndrome (MetS) and aging are prevalent risk factors for coronary artery disease (CAD) and contribute to the etiology of CAD, including dysregulation of Ca2+ handling mechanisms in coronary smooth muscle (CSM). The current study tested the hypothesis that CAD severity and CSM Ca2+ dysregulation were different in MetS-compared to aging-induced CAD. METHODS: Young (2.5 ± 0.2 years) and old (8.8 ± 1.2 years) Ossabaw miniature swine were fed an atherogenic diet for 11 months to induce MetS and were compared to lean age-matched controls...
May 3, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29726047/intravascular-ultrasound-guided-wiring-re-entry-technique-for-complex-chronic-total-occlusions
#13
Wei-Chieh Huang, Hsin-I Teng, Chien-Hung Hsueh, Shing-Jong Lin, Wan-Leong Chan, Tse-Min Lu
BACKGROUND: The successful recanalization rate of chronic total occlusion (CTO) lesions without retrograde collaterals available is always low. Intravascular ultrasound (IVUS) may be useful to guide the subintimal guidewire to re-enter the true lumen. We evaluated the clinical feasibility and efficacy of the IVUS-guided wiring re-entry technique for these complex CTO lesions. METHODS: Twenty consecutive patients (19 male, mean age: 65.3 ± 12.8 years) with both failed antegrade and retrograde approaches were enrolled...
May 3, 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29716799/emergency-and-critical-care-applications-for-contrast-enhanced-ultrasound
#14
REVIEW
Tobias Kummer, Laura Oh, Mary Beth Phelan, Robert D Huang, Jason T Nomura, Srikar Adhikari
INTRODUCTION: Contrast-enhanced ultrasound (CEUS) using intravascular microbubbles has potential to revolutionize point-of-care ultrasonography by expanding the use of ultrasonography into clinical scenarios previously reserved for computed tomography (CT), magnetic resonance imaging, or angiography. METHODS: We performed a literature search and report clinical experience to provide an introduction to CEUS and describe its current applications for point-of-care indications...
April 22, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29706477/usefulness-of-the-finet-law-to-guide-stent-size-selection-in-ostial-left-main-stenting-comparison-with-standard-angiographic-estimation
#15
Gianluca Rigatelli, Marco Zuin, Federico Ronco, Francesco Caprioglio, Daniele Cavazzini, Sara Giatti, Gabriele Braggion, Stefano Perilli, Van Tan Nguyen
BACKGROUNDS: Intravascular ultrasound has been suggested to optimize stent diameter and length in Left Main (LM) procedures, but in the real-world ostial LM stenting is often accomplished with angiography only guidance. The Finet law which regulates the fractal geometry of human bifurcation has the potential to increase the accuracy of stent-sizing. To retrospectively evaluating the impact on outcomes of the addition of Finet Law to standard quantitative coronary angiography (QCA) in guiding stent selection of ostial LM stenting compared to standard angiography estimation...
April 10, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29706344/endovascular-removal-of-fractured-inferior-vena-cava-filter-fragments-5-year-registry-data-with-prospective-outcomes-on-retained-fragments
#16
Andrew J Kesselman, Nam Sao Hoang, Alexander Y Sheu, William T Kuo
PURPOSE: To evaluate the safety and efficacy of attempted percutaneous filter fragment removal during retrieval of fractured inferior vena cava (IVC) filters and to report outcomes associated with retained filter fragments. MATERIALS AND METHODS: Over a 5-year period, 82 consecutive patients presenting with a fractured IVC filter were prospectively enrolled into an institutional review board-approved registry. There were 27 men and 55 women (mean, 47 y; range, 19-85 y)...
April 26, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29703054/impact-of-von-willebrand-factor-on-coronary-plaque-burden-in-coronary-artery-disease-patients-treated-with-statins
#17
Yuta Kato, Atsushi Iwata, Makito Futami, Motoki Yamashita, Satoshi Imaizumi, Takashi Kuwano, Amane Ike, Makoto Sugihara, Hiroaki Nishikawa, Bo Zhang, Shin'ichiro Yasunaga, Keijiro Saku, Shin-Ichiro Miura
High von Willebrand factor (VWF) levels have been reported to be associated with an increased risk of cardiovascular events. However, the relationship between VWF levels and coronary atherosclerosis in patients with coronary artery disease (CAD) who have already received stain treatment is still unclear. We examined the association between VWF levels and coronary plaque as assessed by intravascular ultrasound (IVUS) in CAD patients treated with statins. Ninety-one CAD patients who underwent percutaneous coronary intervention under IVUS guidance, and who were already receiving statin treatment based on Japanese guidelines, were included...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29696358/impact-of-the-triglyceride-level-on-coronary-plaque-components-in-female-patients-with-coronary-artery-disease-treated-with-statins
#18
Motoki Yamashita, Atsushi Iwata, Yuta Kato, Makito Futami, Satoshi Imaizumi, Takashi Kuwano, Amane Ike, Makoto Sugihara, Hiroaki Nishikawa, Bo Zhang, Shin'ichiro Yasunaga, Keijiro Saku, Shin-Ichiro Miura
Several studies have reported that elevated triglyceride (TG) levels may be more strongly associated with an increased risk of coronary artery disease (CAD) in females than in males. We examined gender differences in the relationship between TG levels and coronary atherosclerosis using integrated backscatter intravascular ultrasound (IB IVUS) in CAD patients treated with statins. Three hundred seventy-eight CAD patients (105 females and 273 males) who underwent percutaneous coronary intervention using IB IVUS, and who were already receiving statin treatment, were included...
April 25, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29695382/internal-versus-external-compression-of-a-left-ventricular-assist-device-outflow-graft-diagnosis-with-intravascular-ultrasound-and-treatment-with-stenting
#19
Cory R Trankle, Mohammed A Quader, John D Grizzard, Daniel G Tang, Keyur B Shah, Kendall Paris, Christina K Shepard, Zachary M Gertz
No abstract text is available yet for this article.
May 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29688182/intravascular-ultrasound-in-the-evaluation-and-treatment-of-left-main-coronary-artery-disease-a-consensus-statement-from-the-european-bifurcation-club-ebc
#20
Gary S Mintz, Thierry Lefèvre, Jens Lassen, Luca Testa, Manuel Pan, Jag Singh, Goran Stankovic, Adrian P Banning
No abstract text is available yet for this article.
April 24, 2018: EuroIntervention
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